diff --git a/apps/acl/src/main/java/org/onosproject/acl/impl/AclManager.java b/apps/acl/src/main/java/org/onosproject/acl/impl/AclManager.java
index d7e7748..8b39661 100644
--- a/apps/acl/src/main/java/org/onosproject/acl/impl/AclManager.java
+++ b/apps/acl/src/main/java/org/onosproject/acl/impl/AclManager.java
@@ -29,12 +29,6 @@
 import org.onosproject.acl.AclRule;
 import org.onosproject.acl.AclService;
 import org.onosproject.acl.AclStore;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.acl.RuleId;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -56,6 +50,11 @@
 import org.onosproject.net.host.HostEvent;
 import org.onosproject.net.host.HostListener;
 import org.onosproject.net.host.HostService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.HashSet;
@@ -67,20 +66,19 @@
 /**
  * Implementation of the ACL service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = AclService.class)
 public class AclManager implements AclService {
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected AclStore aclStore;
 
     private final Logger log = getLogger(getClass());
diff --git a/apps/acl/src/main/java/org/onosproject/acl/impl/DistributedAclStore.java b/apps/acl/src/main/java/org/onosproject/acl/impl/DistributedAclStore.java
index e37d30c..0dbb718 100644
--- a/apps/acl/src/main/java/org/onosproject/acl/impl/DistributedAclStore.java
+++ b/apps/acl/src/main/java/org/onosproject/acl/impl/DistributedAclStore.java
@@ -21,15 +21,9 @@
 package org.onosproject.acl.impl;
 
 import com.google.common.collect.Collections2;
+import org.onlab.util.KryoNamespace;
 import org.onosproject.acl.AclRule;
 import org.onosproject.acl.AclStore;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-import org.onlab.util.KryoNamespace;
 import org.onosproject.acl.RuleId;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -41,6 +35,11 @@
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.Versioned;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.ArrayList;
@@ -53,8 +52,7 @@
 /**
  * Implementation of the ACL store service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = AclStore.class)
 public class DistributedAclStore extends AbstractStore implements AclStore {
 
     private final Logger log = getLogger(getClass());
@@ -66,9 +64,9 @@
     private ConsistentMap<RuleId, Set<FlowRule>> ruleToFlow;
     private ConsistentMap<RuleId, List<RuleId>> denyRuleToAllowRule;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     @Activate
diff --git a/apps/actn-mdsc/tetunnel-ctl/src/main/java/org/onosproject/actn/mdsc/tetunnelctl/TeTunnelCtl.java b/apps/actn-mdsc/tetunnel-ctl/src/main/java/org/onosproject/actn/mdsc/tetunnelctl/TeTunnelCtl.java
index 77961ed..c725a01 100644
--- a/apps/actn-mdsc/tetunnel-ctl/src/main/java/org/onosproject/actn/mdsc/tetunnelctl/TeTunnelCtl.java
+++ b/apps/actn-mdsc/tetunnel-ctl/src/main/java/org/onosproject/actn/mdsc/tetunnelctl/TeTunnelCtl.java
@@ -16,11 +16,11 @@
 package org.onosproject.actn.mdsc.tetunnelctl;
 
 import com.google.common.collect.Lists;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.actn.mdsc.pce.TeTunnelPceService;
 import org.onosproject.incubator.net.tunnel.Tunnel;
 import org.onosproject.incubator.net.tunnel.TunnelAdminService;
@@ -63,22 +63,22 @@
 
     private final TunnelListener tunnelListener = new InternalTunnelListener();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TunnelService tunnelService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TunnelAdminService tunnelAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTunnelService teTunnelService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTunnelAdminService teTunnelAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTopologyService teTopologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTunnelPceService teTunnelPceService;
 
     @Activate
diff --git a/apps/actn-mdsc/tetunnel-pce/src/main/java/org/onosproject/actn/mdsc/pce/impl/TeTunnelPceManager.java b/apps/actn-mdsc/tetunnel-pce/src/main/java/org/onosproject/actn/mdsc/pce/impl/TeTunnelPceManager.java
index b0efe80..a87aaa9 100644
--- a/apps/actn-mdsc/tetunnel-pce/src/main/java/org/onosproject/actn/mdsc/pce/impl/TeTunnelPceManager.java
+++ b/apps/actn-mdsc/tetunnel-pce/src/main/java/org/onosproject/actn/mdsc/pce/impl/TeTunnelPceManager.java
@@ -18,10 +18,9 @@
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Lists;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Service;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
 import org.onosproject.actn.mdsc.pce.TeTunnelPce;
 import org.onosproject.actn.mdsc.pce.TeTunnelPceService;
 import org.onosproject.tetunnel.api.tunnel.TeTunnel;
@@ -35,8 +34,7 @@
 /**
  * Implementation of Te Tunnel PCE service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = TeTunnelPceService.class)
 public class TeTunnelPceManager implements TeTunnelPceService {
 
     private static final Logger log = getLogger(TeTunnelPceManager.class);
diff --git a/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisDeaggregatorImpl.java b/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisDeaggregatorImpl.java
index d9141f4..a26ae30 100644
--- a/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisDeaggregatorImpl.java
+++ b/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisDeaggregatorImpl.java
@@ -23,12 +23,6 @@
 import io.netty.buffer.Unpooled;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.util.CharsetUtil;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.json.JSONObject;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
@@ -65,6 +59,11 @@
 import org.onosproject.ovsdb.controller.OvsdbController;
 import org.onosproject.ovsdb.controller.OvsdbInterface;
 import org.onosproject.routing.bgp.BgpInfoService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -74,36 +73,35 @@
 
 import static org.onlab.packet.Ethernet.TYPE_IPV4;
 
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = ArtemisDeaggregator.class)
 public class ArtemisDeaggregatorImpl implements ArtemisDeaggregator {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
     private static final int PRIORITY = 1000;
 
     /* Services */
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private BgpInfoService bgpInfoService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private ArtemisService artemisService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private OvsdbController ovsdbController;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private FlowObjectiveService flowObjectiveService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private CoreService coreService;
 
     /* Variables */
diff --git a/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisDetectorImpl.java b/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisDetectorImpl.java
index 09a8d2c..02f9cd2 100644
--- a/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisDetectorImpl.java
+++ b/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisDetectorImpl.java
@@ -17,12 +17,6 @@
 package org.onosproject.artemis.impl;
 
 import org.apache.commons.lang.exception.ExceptionUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -32,22 +26,26 @@
 import org.onosproject.artemis.ArtemisService;
 import org.onosproject.core.CoreService;
 import org.onosproject.event.EventDeliveryService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = ArtemisDetector.class)
 public class ArtemisDetectorImpl implements ArtemisDetector {
     private final Logger log = LoggerFactory.getLogger(getClass());
 
     /* Services */
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private ArtemisService artemisService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EventDeliveryService eventDispatcher;
 
     private final ArtemisEventListener artemisEventListener = this::handleArtemisEvent;
diff --git a/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisManager.java b/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisManager.java
index c714b05..a0872e5 100644
--- a/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisManager.java
+++ b/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisManager.java
@@ -16,12 +16,6 @@
 
 package org.onosproject.artemis.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.artemis.ArtemisEventListener;
 import org.onosproject.artemis.ArtemisService;
 import org.onosproject.core.ApplicationId;
@@ -33,13 +27,17 @@
 import org.onosproject.net.config.NetworkConfigRegistry;
 import org.onosproject.net.config.NetworkConfigService;
 import org.onosproject.net.config.basics.SubjectFactories;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.util.Optional;
 
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = ArtemisService.class)
 public class ArtemisManager
         extends AbstractListenerManager<ArtemisEvent, ArtemisEventListener>
         implements ArtemisService {
@@ -51,13 +49,13 @@
     private final InternalNetworkConfigListener configListener =
             new InternalNetworkConfigListener();
     /* Services */
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private NetworkConfigRegistry registry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private NetworkConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private CoreService coreService;
 
     /* Variables */
diff --git a/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisMonitorImpl.java b/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisMonitorImpl.java
index 1f4d757..b050448 100755
--- a/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisMonitorImpl.java
+++ b/apps/artemis/src/main/java/org/onosproject/artemis/impl/ArtemisMonitorImpl.java
@@ -17,12 +17,6 @@
 
 import com.google.common.collect.Sets;
 import io.netty.channel.ChannelHandlerContext;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.json.JSONObject;
 import org.onlab.packet.IpPrefix;
 import org.onosproject.artemis.ArtemisMonitor;
@@ -32,6 +26,11 @@
 import org.onosproject.net.config.NetworkConfigEvent;
 import org.onosproject.net.config.NetworkConfigListener;
 import org.onosproject.net.config.NetworkConfigService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -39,16 +38,15 @@
 import java.util.Set;
 import java.util.stream.Collectors;
 
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = ArtemisMonitor.class)
 public class ArtemisMonitorImpl implements ArtemisMonitor {
     private final Logger log = LoggerFactory.getLogger(getClass());
     private static final Class<ArtemisConfig> CONFIG_CLASS = ArtemisConfig.class;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EventDeliveryService eventDispatcher;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private NetworkConfigService configService;
 
     /* Variables */
diff --git a/apps/bgprouter/src/main/java/org/onosproject/bgprouter/BgpRouter.java b/apps/bgprouter/src/main/java/org/onosproject/bgprouter/BgpRouter.java
index 4341645..6ee27a3 100644
--- a/apps/bgprouter/src/main/java/org/onosproject/bgprouter/BgpRouter.java
+++ b/apps/bgprouter/src/main/java/org/onosproject/bgprouter/BgpRouter.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.bgprouter;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.component.ComponentService;
@@ -51,25 +51,25 @@
 
     public static final String BGP_ROUTER_APP = "org.onosproject.bgprouter";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry networkConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowObjectiveService flowObjectiveService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentService componentService;
 
     private ApplicationId appId;
diff --git a/apps/castor/src/main/java/org/onosproject/castor/Castor.java b/apps/castor/src/main/java/org/onosproject/castor/Castor.java
index 7b32f2a..d190d2a 100644
--- a/apps/castor/src/main/java/org/onosproject/castor/Castor.java
+++ b/apps/castor/src/main/java/org/onosproject/castor/Castor.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.castor;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.app.ApplicationService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -38,13 +38,13 @@
     public static final String CASTOR_APP = "org.onosproject.castor";
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ApplicationService applicationService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentSynchronizationService intentSynchronizer;
 
     private ApplicationId appId;
diff --git a/apps/castor/src/main/java/org/onosproject/castor/CastorArpManager.java b/apps/castor/src/main/java/org/onosproject/castor/CastorArpManager.java
index f1d336f..3d6e7d0 100644
--- a/apps/castor/src/main/java/org/onosproject/castor/CastorArpManager.java
+++ b/apps/castor/src/main/java/org/onosproject/castor/CastorArpManager.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.castor;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.ARP;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.Ip4Address;
@@ -40,6 +34,11 @@
 import org.onosproject.net.packet.PacketContext;
 import org.onosproject.net.packet.PacketProcessor;
 import org.onosproject.net.packet.PacketService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.nio.ByteBuffer;
@@ -54,20 +53,19 @@
  * Component for managing the ARPs.
  */
 
-@Component(immediate = true, enabled = true)
-@Service
+@Component(immediate = true, service = ArpService.class)
 public class CastorArpManager implements ArpService  {
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ConnectivityManagerService connectivityManager;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CastorStore castorStore;
 
     private ProxyArpProcessor processor = new ProxyArpProcessor();
diff --git a/apps/castor/src/main/java/org/onosproject/castor/ConnectivityManager.java b/apps/castor/src/main/java/org/onosproject/castor/ConnectivityManager.java
index a9a986ee..5125ce3 100644
--- a/apps/castor/src/main/java/org/onosproject/castor/ConnectivityManager.java
+++ b/apps/castor/src/main/java/org/onosproject/castor/ConnectivityManager.java
@@ -14,12 +14,7 @@
  * limitations under the License.
  */
 package org.onosproject.castor;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IPv4;
 import org.onlab.packet.IPv6;
@@ -29,6 +24,7 @@
 import org.onlab.packet.TpPort;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
+import org.onosproject.intentsync.IntentSynchronizationService;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.FilteredConnectPoint;
 import org.onosproject.net.flow.DefaultTrafficSelector;
@@ -38,7 +34,11 @@
 import org.onosproject.net.intent.Key;
 import org.onosproject.net.intent.MultiPointToSinglePointIntent;
 import org.onosproject.net.intent.PointToPointIntent;
-import org.onosproject.intentsync.IntentSynchronizationService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -56,17 +56,16 @@
 /**
  * Manages the connectivity requirements between peers.
  */
-@Component(immediate = true, enabled = true)
-@Service
+@Component(immediate = true, service = ConnectivityManagerService.class)
 public class ConnectivityManager implements ConnectivityManagerService {
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentSynchronizationService intentSynchronizer;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CastorStore castorStore;
 
     private static final int PRIORITY_OFFSET = 1000;
diff --git a/apps/castor/src/main/java/org/onosproject/castor/DistributedCastorStore.java b/apps/castor/src/main/java/org/onosproject/castor/DistributedCastorStore.java
index 681756e..3a1a98c 100644
--- a/apps/castor/src/main/java/org/onosproject/castor/DistributedCastorStore.java
+++ b/apps/castor/src/main/java/org/onosproject/castor/DistributedCastorStore.java
@@ -16,24 +16,23 @@
 package org.onosproject.castor;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.net.intent.Key;
 import org.onosproject.net.intent.MultiPointToSinglePointIntent;
 import org.onosproject.net.intent.PointToPointIntent;
+import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.ConsistentMap;
 import org.onosproject.store.service.DistributedSet;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.Versioned;
-import org.onosproject.store.serializers.KryoNamespaces;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -45,13 +44,12 @@
  * Distributed Store for Castor.
  */
 
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = CastorStore.class)
 public class DistributedCastorStore implements CastorStore {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private ConsistentMap<IpAddress, MacAddress> addressMap;
diff --git a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/CfmMdManager.java b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/CfmMdManager.java
index b18d2f6..5c5a12c 100644
--- a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/CfmMdManager.java
+++ b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/CfmMdManager.java
@@ -15,15 +15,6 @@
  */
 package org.onosproject.incubator.net.l2monitoring.cfm.impl;
 
-import java.util.Collection;
-import java.util.Optional;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.event.AbstractListenerManager;
@@ -38,14 +29,21 @@
 import org.onosproject.incubator.net.l2monitoring.cfm.service.MdListener;
 import org.onosproject.incubator.net.l2monitoring.cfm.service.MdStore;
 import org.onosproject.incubator.net.l2monitoring.cfm.service.MdStoreDelegate;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.Collection;
+import java.util.Optional;
+
 /**
  * Manager of Cfm Md Service - persists Maintenance Domain in distributed store.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = CfmMdService.class)
 public class CfmMdManager extends AbstractListenerManager<MdEvent, MdListener>
         implements CfmMdService {
 
@@ -54,10 +52,10 @@
 
     protected ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MdStore store;
 
     protected final MdStoreDelegate delegate = new InternalStoreDelegate();
diff --git a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/CfmMepManager.java b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/CfmMepManager.java
index e58a570..e641f3c 100644
--- a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/CfmMepManager.java
+++ b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/CfmMepManager.java
@@ -15,28 +15,6 @@
  */
 package org.onosproject.incubator.net.l2monitoring.cfm.impl;
 
-import static org.onlab.util.Tools.groupedThreads;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Optional;
-import java.util.Set;
-import java.util.concurrent.ConcurrentLinkedQueue;
-import java.util.concurrent.Executors;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.ScheduledFuture;
-import java.util.concurrent.TimeUnit;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.CoreService;
 import org.onosproject.core.IdGenerator;
 import org.onosproject.event.AbstractListenerManager;
@@ -66,13 +44,33 @@
 import org.onosproject.net.device.DeviceEvent;
 import org.onosproject.net.device.DeviceListener;
 import org.onosproject.net.device.DeviceService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Optional;
+import java.util.Set;
+import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+
+import static org.onlab.util.Tools.groupedThreads;
+import static org.slf4j.LoggerFactory.getLogger;
+
 /**
  * Provides implementation of the CFM North and South Bound Interfaces.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = CfmMepService.class)
 public class CfmMepManager
     extends AbstractListenerManager<CfmMepEvent, CfmMepListener>
     implements CfmMepService {
@@ -82,16 +80,16 @@
     private InternalDeviceListener deviceListener = null;
     private InternalMdListener mdListener = null;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CfmMdService cfmMdService;
 
     private static final int DEFAULT_POLL_FREQUENCY = 30;
@@ -116,7 +114,7 @@
 
     private IdGenerator idGenerator;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MepStore mepStore;
 
     protected final MepStoreDelegate delegate = new InternalStoreDelegate();
diff --git a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMdStore.java b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMdStore.java
index 81813f8..f12be55 100644
--- a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMdStore.java
+++ b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMdStore.java
@@ -17,12 +17,6 @@
 
 import com.google.common.net.InternetDomainName;
 import org.apache.commons.lang3.tuple.ImmutablePair;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.MacAddress;
 import org.onlab.util.Identifier;
 import org.onlab.util.KryoNamespace;
@@ -47,13 +41,18 @@
 import org.onosproject.incubator.net.l2monitoring.cfm.service.MdEvent;
 import org.onosproject.incubator.net.l2monitoring.cfm.service.MdStore;
 import org.onosproject.incubator.net.l2monitoring.cfm.service.MdStoreDelegate;
-import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.AbstractStore;
+import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.ConsistentMap;
 import org.onosproject.store.service.MapEvent;
 import org.onosproject.store.service.MapEventListener;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -66,14 +65,13 @@
 /**
  * Maintenance Domain Store implementation backed by consistent map.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = MdStore.class)
 public class DistributedMdStore extends AbstractStore<MdEvent, MdStoreDelegate>
     implements MdStore {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private ConsistentMap<MdId, MaintenanceDomain> maintenanceDomainConsistentMap;
diff --git a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMepStore.java b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMepStore.java
index c21166a..444ca9c 100644
--- a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMepStore.java
+++ b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMepStore.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.incubator.net.l2monitoring.cfm.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.VlanId;
 import org.onlab.util.KryoNamespace;
@@ -52,6 +46,11 @@
 import org.onosproject.store.service.MapEventListener;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -64,14 +63,13 @@
 /**
  * MEP Store implementation backed by consistent map.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = MepStore.class)
 public class DistributedMepStore extends AbstractStore<CfmMepEvent, MepStoreDelegate>
     implements MepStore {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private ConsistentMap<MepKeyId, Mep> mepConsistentMap;
diff --git a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/soam/impl/SoamManager.java b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/soam/impl/SoamManager.java
index 79a6480..8738041 100644
--- a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/soam/impl/SoamManager.java
+++ b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/soam/impl/SoamManager.java
@@ -15,15 +15,6 @@
  */
 package org.onosproject.incubator.net.l2monitoring.soam.impl;
 
-import java.util.Collection;
-import java.util.Optional;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.incubator.net.l2monitoring.cfm.MepEntry;
@@ -46,14 +37,21 @@
 import org.onosproject.incubator.net.l2monitoring.soam.loss.LossMeasurementStatCurrent;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.device.DeviceService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.Collection;
+import java.util.Optional;
+
 /**
  * ONOS application component.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = SoamService.class)
 public class SoamManager implements SoamService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -61,13 +59,13 @@
 
     private ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CfmMepService cfmMepService;
 
     @Activate
diff --git a/apps/cfm/nbi/src/main/java/org/onosproject/cfm/CfmWebComponent.java b/apps/cfm/nbi/src/main/java/org/onosproject/cfm/CfmWebComponent.java
index a31a407..0cef175 100644
--- a/apps/cfm/nbi/src/main/java/org/onosproject/cfm/CfmWebComponent.java
+++ b/apps/cfm/nbi/src/main/java/org/onosproject/cfm/CfmWebComponent.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.cfm;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.VlanId;
 import org.onosproject.cfm.web.ComponentCodec;
 import org.onosproject.cfm.web.FngAddressCodec;
@@ -90,7 +90,7 @@
 public class CfmWebComponent {
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CodecService codecService;
 
     /**
diff --git a/apps/cip/src/main/java/org/onosproject/cip/ClusterIpManager.java b/apps/cip/src/main/java/org/onosproject/cip/ClusterIpManager.java
index 5dff893..17259fd 100644
--- a/apps/cip/src/main/java/org/onosproject/cip/ClusterIpManager.java
+++ b/apps/cip/src/main/java/org/onosproject/cip/ClusterIpManager.java
@@ -16,14 +16,6 @@
 package org.onosproject.cip;
 
 import com.google.common.io.ByteStreams;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.LeadershipEvent;
@@ -31,6 +23,12 @@
 import org.onosproject.cluster.LeadershipService;
 import org.onosproject.cluster.NodeId;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -63,13 +61,13 @@
 
     private static final String CLUSTER_IP = "cluster/ip";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
     private final LeadershipEventListener listener = new InternalLeadershipListener();
@@ -78,15 +76,15 @@
     private boolean wasLeader = false;
 
     // By default there is no IP; this has to be configured
-    @Property(name = "aliasIp", value = "", label = "Alias IP address")
+    //@Property(name = "aliasIp", value = "", label = "Alias IP address")
     private String aliasIp = "";
 
     public static final String DEFAULT_MASK = "255.255.0.0";
-    @Property(name = "aliasMask", value = DEFAULT_MASK, label = "Alias IP mask")
+    //@Property(name = "aliasMask", value = DEFAULT_MASK, label = "Alias IP mask")
     private String aliasMask = DEFAULT_MASK;
 
     public static final String ETH_0 = "eth0:0";
-    @Property(name = "aliasAdapter", value = ETH_0, label = "Alias IP adapter")
+    //@Property(name = "aliasAdapter", value = ETH_0, label = "Alias IP adapter")
     private String aliasAdapter = ETH_0;
 
     @Activate
diff --git a/apps/config/src/main/java/org/onosproject/config/impl/DistributedDynamicConfigStore.java b/apps/config/src/main/java/org/onosproject/config/impl/DistributedDynamicConfigStore.java
index f74e26c..62cd86d 100644
--- a/apps/config/src/main/java/org/onosproject/config/impl/DistributedDynamicConfigStore.java
+++ b/apps/config/src/main/java/org/onosproject/config/impl/DistributedDynamicConfigStore.java
@@ -16,12 +16,6 @@
 package org.onosproject.config.impl;
 
 import com.google.common.annotations.Beta;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.config.DynamicConfigEvent;
 import org.onosproject.config.DynamicConfigStore;
@@ -56,6 +50,11 @@
 import org.onosproject.yang.model.NodeKey;
 import org.onosproject.yang.model.ResourceId;
 import org.onosproject.yang.model.SchemaId;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -66,6 +65,7 @@
 import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
+
 import static org.onosproject.config.DynamicConfigEvent.Type.NODE_ADDED;
 import static org.onosproject.config.DynamicConfigEvent.Type.NODE_DELETED;
 import static org.onosproject.config.DynamicConfigEvent.Type.NODE_UPDATED;
@@ -76,15 +76,14 @@
  * Implementation of the dynamic config store.
  */
 @Beta
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = DynamicConfigStore.class)
 public class DistributedDynamicConfigStore
         extends AbstractStore<DynamicConfigEvent, DynamicConfigStoreDelegate>
         implements DynamicConfigStore {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     // FIXME transactionally mutate the 2 or consolidate into 1 AsyncDocTree
diff --git a/apps/config/src/main/java/org/onosproject/config/impl/DynamicConfigManager.java b/apps/config/src/main/java/org/onosproject/config/impl/DynamicConfigManager.java
index 944cd02..074f8d4 100644
--- a/apps/config/src/main/java/org/onosproject/config/impl/DynamicConfigManager.java
+++ b/apps/config/src/main/java/org/onosproject/config/impl/DynamicConfigManager.java
@@ -15,17 +15,6 @@
  */
 package org.onosproject.config.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-import org.onosproject.config.RpcExecutor;
-import org.onosproject.config.RpcMessageId;
-import org.onosproject.d.config.DeviceResourceIds;
-import org.onosproject.d.config.ResourceIds;
-import org.onosproject.event.AbstractListenerManager;
 import org.onosproject.config.DynamicConfigEvent;
 import org.onosproject.config.DynamicConfigListener;
 import org.onosproject.config.DynamicConfigService;
@@ -33,23 +22,33 @@
 import org.onosproject.config.DynamicConfigStoreDelegate;
 import org.onosproject.config.FailedException;
 import org.onosproject.config.Filter;
-import org.onosproject.yang.model.RpcInput;
-import org.onosproject.yang.model.RpcOutput;
+import org.onosproject.config.RpcExecutor;
+import org.onosproject.config.RpcMessageId;
+import org.onosproject.d.config.DeviceResourceIds;
+import org.onosproject.d.config.ResourceIds;
+import org.onosproject.event.AbstractListenerManager;
 import org.onosproject.yang.model.DataNode;
 import org.onosproject.yang.model.DataNode.Type;
 import org.onosproject.yang.model.InnerNode;
 import org.onosproject.yang.model.ResourceId;
 import org.onosproject.yang.model.RpcContext;
+import org.onosproject.yang.model.RpcInput;
+import org.onosproject.yang.model.RpcOutput;
 import org.onosproject.yang.model.RpcRegistry;
 import org.onosproject.yang.model.RpcService;
 import org.onosproject.yang.model.SchemaContextProvider;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
+import org.slf4j.Logger;
 
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ConcurrentHashMap;
-import org.slf4j.Logger;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 import static org.onosproject.d.config.DeviceResourceIds.DCS_NAMESPACE;
@@ -59,8 +58,7 @@
  * Implementation of the Dynamic Config Service.
  *
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = { DynamicConfigService.class, RpcRegistry.class })
 public class DynamicConfigManager
         extends AbstractListenerManager<DynamicConfigEvent, DynamicConfigListener>
         implements DynamicConfigService, RpcRegistry {
@@ -68,10 +66,10 @@
     private final Logger log = getLogger(getClass());
     private final DynamicConfigStoreDelegate storeDelegate = new InternalStoreDelegate();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DynamicConfigStore store;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SchemaContextProvider contextProvider;
 
     // FIXME is it OK this is not using the Store?
diff --git a/apps/configsync-netconf/src/main/java/org/onosproject/d/config/sync/impl/netconf/NetconfDeviceConfigSynchronizerComponent.java b/apps/configsync-netconf/src/main/java/org/onosproject/d/config/sync/impl/netconf/NetconfDeviceConfigSynchronizerComponent.java
index e3ec5c7..d107da7 100644
--- a/apps/configsync-netconf/src/main/java/org/onosproject/d/config/sync/impl/netconf/NetconfDeviceConfigSynchronizerComponent.java
+++ b/apps/configsync-netconf/src/main/java/org/onosproject/d/config/sync/impl/netconf/NetconfDeviceConfigSynchronizerComponent.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.d.config.sync.impl.netconf;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.d.config.sync.DeviceConfigSynchronizationProviderRegistry;
 import org.onosproject.d.config.sync.DeviceConfigSynchronizationProviderService;
 import org.onosproject.net.device.DeviceService;
@@ -51,19 +51,19 @@
     public static final ProviderId PID =
             new ProviderId("netconf", "org.onosproject.d.config.sync.netconf");
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceConfigSynchronizationProviderRegistry registry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetconfController netconfController;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected YangRuntimeService yangRuntimeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SchemaContextProvider schemaContextProvider;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
     private NetconfDeviceConfigSynchronizerProvider provider;
diff --git a/apps/configsync/src/main/java/org/onosproject/d/config/sync/impl/DynamicDeviceConfigSynchronizer.java b/apps/configsync/src/main/java/org/onosproject/d/config/sync/impl/DynamicDeviceConfigSynchronizer.java
index c2f9a9e..ab094fc 100644
--- a/apps/configsync/src/main/java/org/onosproject/d/config/sync/impl/DynamicDeviceConfigSynchronizer.java
+++ b/apps/configsync/src/main/java/org/onosproject/d/config/sync/impl/DynamicDeviceConfigSynchronizer.java
@@ -15,27 +15,9 @@
  */
 package org.onosproject.d.config.sync.impl;
 
-import static java.util.concurrent.CompletableFuture.completedFuture;
-import static org.onosproject.d.config.DeviceResourceIds.isUnderDeviceRootNode;
-import static org.onosproject.d.config.DeviceResourceIds.toDeviceId;
-import static org.onosproject.d.config.DeviceResourceIds.toResourceId;
-import static org.onosproject.d.config.sync.operation.SetResponse.response;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.time.Duration;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.CompletableFuture;
-import java.util.stream.Collectors;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.annotations.Beta;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableMap;
 import org.onlab.util.Tools;
 import org.onosproject.config.DynamicConfigEvent;
 import org.onosproject.config.DynamicConfigEvent.Type;
@@ -58,11 +40,27 @@
 import org.onosproject.store.primitives.TransactionId;
 import org.onosproject.yang.model.DataNode;
 import org.onosproject.yang.model.ResourceId;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.google.common.annotations.Beta;
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableMap;
+import java.time.Duration;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.stream.Collectors;
+
+import static java.util.concurrent.CompletableFuture.completedFuture;
+import static org.onosproject.d.config.DeviceResourceIds.isUnderDeviceRootNode;
+import static org.onosproject.d.config.DeviceResourceIds.toDeviceId;
+import static org.onosproject.d.config.DeviceResourceIds.toResourceId;
+import static org.onosproject.d.config.sync.operation.SetResponse.response;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Component to bridge Dynamic Config store and the Device configuration state.
@@ -73,8 +71,7 @@
  * </ul>
  */
 @Beta
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = DeviceConfigSynchronizationProviderRegistry.class)
 public class DynamicDeviceConfigSynchronizer
     extends AbstractProviderRegistry<DeviceConfigSynchronizationProvider,
                                      DeviceConfigSynchronizationProviderService>
@@ -82,10 +79,10 @@
 
     private static final Logger log = getLogger(DynamicDeviceConfigSynchronizer.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DynamicConfigService dynConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService netcfgService;
 
     private DynamicConfigListener listener = new InnerDyConListener();
diff --git a/apps/cpman/app/src/main/java/org/onosproject/cpman/gui/CpmanUI.java b/apps/cpman/app/src/main/java/org/onosproject/cpman/gui/CpmanUI.java
index 0d8f140..097c245 100644
--- a/apps/cpman/app/src/main/java/org/onosproject/cpman/gui/CpmanUI.java
+++ b/apps/cpman/app/src/main/java/org/onosproject/cpman/gui/CpmanUI.java
@@ -16,16 +16,15 @@
 package org.onosproject.cpman.gui;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
 import org.onosproject.ui.UiView;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -36,8 +35,7 @@
 /**
  * Mechanism to stream data to the GUI.
  */
-@Component(immediate = true, enabled = true)
-@Service(value = CpmanUI.class)
+@Component(immediate = true, service = CpmanUI.class)
 public class CpmanUI {
     private static final String CPMAN_ID = "cpman";
     private static final String CPMAN_TEXT = "Control Plane Manager";
@@ -46,7 +44,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // Factory for UI message handlers
diff --git a/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/ControlPlaneManager.java b/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/ControlPlaneManager.java
index d4139f3..96dde25 100644
--- a/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/ControlPlaneManager.java
+++ b/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/ControlPlaneManager.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.cpman.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.cpman.ControlMessage;
@@ -45,13 +45,13 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ControlMessageService messageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ControlPlaneMonitorService monitorService;
 
     private final ControlMessageListener messageListener =
diff --git a/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/ControlPlaneMonitor.java b/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/ControlPlaneMonitor.java
index dbc8082..ea2dabc 100644
--- a/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/ControlPlaneMonitor.java
+++ b/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/ControlPlaneMonitor.java
@@ -19,12 +19,6 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.NodeId;
@@ -42,6 +36,11 @@
 import org.onosproject.store.cluster.messaging.MessageSubject;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.Serializer;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -63,8 +62,7 @@
 /**
  * Control plane monitoring service class.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = ControlPlaneMonitorService.class)
 public class ControlPlaneMonitor implements ControlPlaneMonitorService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -74,10 +72,10 @@
     private Map<String, MetricsDatabase> diskMetricsMap;
     private Map<String, MetricsDatabase> networkMetricsMap;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterCommunicationService communicationService;
 
     private static final String DEFAULT_RESOURCE = "default";
diff --git a/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/message/ControlMessageManager.java b/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/message/ControlMessageManager.java
index 2b491b4..bb92c1b 100644
--- a/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/message/ControlMessageManager.java
+++ b/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/message/ControlMessageManager.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.cpman.impl.message;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cpman.ControlMessage;
 import org.onosproject.cpman.message.ControlMessageAdminService;
 import org.onosproject.cpman.message.ControlMessageEvent;
@@ -34,6 +28,11 @@
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.provider.AbstractListenerProviderRegistry;
 import org.onosproject.net.provider.AbstractProviderService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Set;
@@ -44,8 +43,8 @@
 /**
  * Provides implementation of the control message SB &amp; NB APIs.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = { ControlMessageService.class, ControlMessageAdminService.class,
+        ControlMessageProviderRegistry.class })
 public class ControlMessageManager
         extends AbstractListenerProviderRegistry<ControlMessageEvent, ControlMessageListener,
         ControlMessageProvider, ControlMessageProviderService>
@@ -58,7 +57,7 @@
 
     private final ControlMessageStoreDelegate delegate = new InternalStoreDelegate();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ControlMessageStore store;
 
     @Activate
diff --git a/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/message/DefaultControlMessageStore.java b/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/message/DefaultControlMessageStore.java
index 660d9f0..eda361a 100644
--- a/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/message/DefaultControlMessageStore.java
+++ b/apps/cpman/app/src/main/java/org/onosproject/cpman/impl/message/DefaultControlMessageStore.java
@@ -15,10 +15,6 @@
  */
 package org.onosproject.cpman.impl.message;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cpman.ControlMessage;
 import org.onosproject.cpman.message.ControlMessageEvent;
 import org.onosproject.cpman.message.ControlMessageStore;
@@ -26,6 +22,9 @@
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.provider.ProviderId;
 import org.onosproject.store.AbstractStore;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
 import org.slf4j.Logger;
 
 import java.util.Set;
@@ -36,8 +35,7 @@
  * Manages inventory of control message using trivial in-memory structures
  * implementation.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = ControlMessageStore.class)
 public class DefaultControlMessageStore
         extends AbstractStore<ControlMessageEvent, ControlMessageStoreDelegate>
         implements ControlMessageStore {
diff --git a/apps/cpman/app/src/main/java/org/onosproject/cpman/rest/CPManCodecRegistrator.java b/apps/cpman/app/src/main/java/org/onosproject/cpman/rest/CPManCodecRegistrator.java
index c49da94..961f4b1 100644
--- a/apps/cpman/app/src/main/java/org/onosproject/cpman/rest/CPManCodecRegistrator.java
+++ b/apps/cpman/app/src/main/java/org/onosproject/cpman/rest/CPManCodecRegistrator.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.cpman.rest;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.codec.CodecService;
 import org.onosproject.cpman.ControlLoadSnapshot;
 import org.onosproject.cpman.codec.ControlLoadSnapshotCodec;
@@ -35,7 +35,7 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CodecService codecService;
 
     @Activate
diff --git a/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpManager.java b/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpManager.java
index f18b861..a0f9548 100644
--- a/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpManager.java
+++ b/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpManager.java
@@ -17,15 +17,6 @@
 
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableSet;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.ARP;
 import org.onlab.packet.DHCP;
 import org.onlab.packet.Ethernet;
@@ -69,6 +60,12 @@
 import org.onosproject.net.provider.AbstractProvider;
 import org.onosproject.net.provider.ProviderId;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -77,7 +74,6 @@
 import java.util.Date;
 import java.util.Dictionary;
 import java.util.HashSet;
-
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
@@ -97,8 +93,7 @@
 /**
  * Skeletal ONOS DHCP Server application.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = DhcpService.class)
 public class DhcpManager implements DhcpService {
 
     private static final ProviderId PID = new ProviderId("of", "org.onosproject.dhcp", true);
@@ -119,28 +114,28 @@
                 }
             }
     );
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
     private DhcpPacketProcessor processor = new DhcpPacketProcessor();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DhcpStore dhcpStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostProviderRegistry hostProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Property(name = ALLOW_HOST_DISCOVERY, boolValue = DEFAULT_ALLOW_HOST_DISCOVERY,
-            label = "Allow host discovery from DHCP request")
+    //@Property(name = ALLOW_HOST_DISCOVERY, boolValue = DEFAULT_ALLOW_HOST_DISCOVERY,
+    //        label = "Allow host discovery from DHCP request")
     private boolean allowHostDiscovery = DEFAULT_ALLOW_HOST_DISCOVERY;
 
     protected HostProviderService hostProviderService;
diff --git a/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpUi.java b/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpUi.java
index 0369dde..908099c 100644
--- a/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpUi.java
+++ b/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpUi.java
@@ -16,16 +16,15 @@
 package org.onosproject.dhcp.impl;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
 import org.onosproject.ui.UiView;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -36,14 +35,13 @@
 /**
  * Mechanism to stream data to the GUI.
  */
-@Component(immediate = true, enabled = true)
-@Service(value = DhcpUi.class)
+@Component(immediate = true, service = DhcpUi.class)
 public class DhcpUi {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
     private static final ClassLoader CL = DhcpUi.class.getClassLoader();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     private final UiMessageHandlerFactory messageHandlerFactory =
diff --git a/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DistributedDhcpStore.java b/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DistributedDhcpStore.java
index 94b0ddc..e8ce2cc 100644
--- a/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DistributedDhcpStore.java
+++ b/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DistributedDhcpStore.java
@@ -16,12 +16,6 @@
 package org.onosproject.dhcp.impl;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.Ip4Address;
 import org.onlab.packet.MacAddress;
 import org.onlab.util.KryoNamespace;
@@ -34,12 +28,17 @@
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.Versioned;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.util.Date;
-import java.util.Map;
 import java.util.HashMap;
+import java.util.Map;
 
 import static org.onosproject.dhcp.IpAssignment.AssignmentStatus.Option_Assigned;
 import static org.onosproject.dhcp.IpAssignment.AssignmentStatus.Option_RangeNotEnforced;
@@ -49,13 +48,12 @@
  * Remembers the mapping between MAC ID and IP Addresses assigned.
  */
 
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = DhcpStore.class)
 public class DistributedDhcpStore implements DhcpStore {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private ConsistentMap<HostId, IpAssignment> allocationMap;
diff --git a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp4HandlerImpl.java b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp4HandlerImpl.java
index 886115b..702df7e 100644
--- a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp4HandlerImpl.java
+++ b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp4HandlerImpl.java
@@ -23,14 +23,6 @@
 import com.google.common.collect.Multimap;
 import com.google.common.collect.Multimaps;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.BasePacket;
 import org.onlab.packet.DHCP;
 import org.onlab.packet.Ethernet;
@@ -54,44 +46,50 @@
 import org.onosproject.dhcprelay.config.IgnoreDhcpConfig;
 import org.onosproject.dhcprelay.store.DhcpRecord;
 import org.onosproject.dhcprelay.store.DhcpRelayStore;
+import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Device;
 import org.onosproject.net.DeviceId;
+import org.onosproject.net.Host;
+import org.onosproject.net.HostId;
+import org.onosproject.net.HostLocation;
 import org.onosproject.net.behaviour.Pipeliner;
 import org.onosproject.net.device.DeviceService;
 import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
 import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
 import org.onosproject.net.flowobjective.DefaultForwardingObjective;
 import org.onosproject.net.flowobjective.FlowObjectiveService;
 import org.onosproject.net.flowobjective.ForwardingObjective;
 import org.onosproject.net.flowobjective.Objective;
 import org.onosproject.net.flowobjective.ObjectiveContext;
 import org.onosproject.net.flowobjective.ObjectiveError;
+import org.onosproject.net.host.DefaultHostDescription;
+import org.onosproject.net.host.HostDescription;
 import org.onosproject.net.host.HostEvent;
 import org.onosproject.net.host.HostListener;
 import org.onosproject.net.host.HostProvider;
 import org.onosproject.net.host.HostProviderRegistry;
 import org.onosproject.net.host.HostProviderService;
-import org.onosproject.net.intf.Interface;
-import org.onosproject.net.intf.InterfaceService;
-import org.onosproject.net.packet.PacketPriority;
-import org.onosproject.net.provider.ProviderId;
-import org.onosproject.routeservice.Route;
-import org.onosproject.routeservice.RouteStore;
-import org.onosproject.net.ConnectPoint;
-import org.onosproject.net.Host;
-import org.onosproject.net.HostId;
-import org.onosproject.net.HostLocation;
-import org.onosproject.net.flow.DefaultTrafficTreatment;
-import org.onosproject.net.flow.TrafficTreatment;
-import org.onosproject.net.host.DefaultHostDescription;
-import org.onosproject.net.host.HostDescription;
 import org.onosproject.net.host.HostService;
 import org.onosproject.net.host.InterfaceIpAddress;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.packet.DefaultOutboundPacket;
 import org.onosproject.net.packet.OutboundPacket;
 import org.onosproject.net.packet.PacketContext;
+import org.onosproject.net.packet.PacketPriority;
 import org.onosproject.net.packet.PacketService;
+import org.onosproject.net.provider.ProviderId;
+import org.onosproject.routeservice.Route;
+import org.onosproject.routeservice.RouteStore;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -121,9 +119,8 @@
 import static org.onosproject.net.flowobjective.Objective.Operation.REMOVE;
 
 
-@Component
-@Service
-@Property(name = "version", value = "4")
+@Component(service = { DhcpHandler.class, HostProvider.class })
+//@Property(name = "version", value = "4")
 public class Dhcp4HandlerImpl implements DhcpHandler, HostProvider {
     public static final String DHCP_V4_RELAY_APP = "org.onosproject.Dhcp4HandlerImpl";
     public static final ProviderId PROVIDER_ID = new ProviderId("dhcp4", DHCP_V4_RELAY_APP);
@@ -152,34 +149,34 @@
     );
     private static Logger log = LoggerFactory.getLogger(Dhcp4HandlerImpl.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DhcpRelayStore dhcpRelayStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteStore routeStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowObjectiveService flowObjectiveService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
     protected HostProviderService providerService;
@@ -190,8 +187,8 @@
     private List<DhcpServerInfo> defaultServerInfoList = new CopyOnWriteArrayList<>();
     private List<DhcpServerInfo> indirectServerInfoList = new CopyOnWriteArrayList<>();
 
-    @Property(name = Dhcp4HandlerImpl.LQ_ROUTE_PROPERTY_NAME, boolValue = false,
-            label = "Enable learning routing information from LQ")
+    //@Property(name = Dhcp4HandlerImpl.LQ_ROUTE_PROPERTY_NAME, boolValue = false,
+    //        label = "Enable learning routing information from LQ")
     private Boolean learnRouteFromLeasequery = Boolean.TRUE;
 
     private Executor hostEventExecutor = newSingleThreadExecutor(
diff --git a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp6HandlerImpl.java b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp6HandlerImpl.java
index e36daf9..ba759a2 100644
--- a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp6HandlerImpl.java
+++ b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/Dhcp6HandlerImpl.java
@@ -22,14 +22,12 @@
 import com.google.common.collect.Multimaps;
 import com.google.common.collect.Sets;
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.BasePacket;
 import org.onlab.packet.DHCP6;
 import org.onlab.packet.IPv6;
@@ -126,9 +124,8 @@
 import static org.onosproject.net.flowobjective.Objective.Operation.REMOVE;
 import java.util.concurrent.Semaphore;
 
-@Component
-@Service
-@Property(name = "version", value = "6")
+@Component(service = { DhcpHandler.class, HostProvider.class })
+//@Property(name = "version", value = "6")
 public class Dhcp6HandlerImpl implements DhcpHandler, HostProvider {
     public static final String DHCP_V6_RELAY_APP = "org.onosproject.Dhcp6HandlerImpl";
     public static final ProviderId PROVIDER_ID = new ProviderId("dhcp6", DHCP_V6_RELAY_APP);
@@ -164,44 +161,44 @@
     );
     private static Logger log = LoggerFactory.getLogger(Dhcp6HandlerImpl.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DhcpRelayStore dhcpRelayStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DhcpRelayCountersStore dhcpRelayCountersStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteStore routeStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DhcpFpmPrefixStore dhcpFpmPrefixStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowObjectiveService flowObjectiveService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Property(name = Dhcp6HandlerImpl.LQ_ROUTE_PROPERTY_NAME, boolValue = false,
-            label = "Enable learning routing information from LQ")
+    //@Property(name = Dhcp6HandlerImpl.LQ_ROUTE_PROPERTY_NAME, boolValue = false,
+    //        label = "Enable learning routing information from LQ")
     private Boolean learnRouteFromLeasequery = Boolean.TRUE;
 
     protected HostProviderService providerService;
diff --git a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/DhcpRelayManager.java b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/DhcpRelayManager.java
index f2ca330..3bb7f4e 100644
--- a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/DhcpRelayManager.java
+++ b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/DhcpRelayManager.java
@@ -15,37 +15,19 @@
  */
 package org.onosproject.dhcprelay;
 
-import java.nio.ByteBuffer;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Dictionary;
-import java.util.List;
-import java.util.Objects;
-import java.util.Optional;
-import java.util.Set;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
 import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Streams;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.ARP;
 import org.onlab.packet.DHCP;
 import org.onlab.packet.DHCP6;
-import org.onlab.packet.IPacket;
-import org.onlab.packet.IPv6;
 import org.onlab.packet.Ethernet;
+import org.onlab.packet.IPacket;
 import org.onlab.packet.IPv4;
+import org.onlab.packet.IPv6;
 import org.onlab.packet.Ip4Address;
-import org.onlab.packet.MacAddress;
 import org.onlab.packet.IpPrefix;
+import org.onlab.packet.MacAddress;
 import org.onlab.packet.UDP;
 import org.onlab.packet.VlanId;
 import org.onlab.util.Tools;
@@ -58,56 +40,68 @@
 import org.onosproject.dhcprelay.config.DefaultDhcpRelayConfig;
 import org.onosproject.dhcprelay.config.DhcpServerConfig;
 import org.onosproject.dhcprelay.config.EnableDhcpFpmConfig;
-import org.onosproject.dhcprelay.config.IndirectDhcpRelayConfig;
 import org.onosproject.dhcprelay.config.IgnoreDhcpConfig;
+import org.onosproject.dhcprelay.config.IndirectDhcpRelayConfig;
+import org.onosproject.dhcprelay.store.DhcpFpmPrefixStore;
 import org.onosproject.dhcprelay.store.DhcpRecord;
 import org.onosproject.dhcprelay.store.DhcpRelayStore;
-import org.onosproject.dhcprelay.store.DhcpFpmPrefixStore;
-import org.onosproject.routing.fpm.api.FpmRecord;
+import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Device;
 import org.onosproject.net.Host;
-import org.onosproject.net.config.Config;
-import org.onosproject.net.device.DeviceEvent;
-import org.onosproject.net.device.DeviceListener;
-import org.onosproject.net.device.DeviceService;
-import org.onosproject.net.intf.Interface;
-import org.onosproject.net.intf.InterfaceService;
-import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.HostId;
+import org.onosproject.net.config.Config;
 import org.onosproject.net.config.ConfigFactory;
 import org.onosproject.net.config.NetworkConfigEvent;
 import org.onosproject.net.config.NetworkConfigListener;
 import org.onosproject.net.config.NetworkConfigRegistry;
+import org.onosproject.net.device.DeviceEvent;
+import org.onosproject.net.device.DeviceListener;
+import org.onosproject.net.device.DeviceService;
 import org.onosproject.net.flow.DefaultTrafficSelector;
 import org.onosproject.net.flow.DefaultTrafficTreatment;
 import org.onosproject.net.flow.TrafficSelector;
 import org.onosproject.net.flow.TrafficTreatment;
 import org.onosproject.net.host.HostService;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.packet.DefaultOutboundPacket;
 import org.onosproject.net.packet.OutboundPacket;
 import org.onosproject.net.packet.PacketContext;
 import org.onosproject.net.packet.PacketPriority;
 import org.onosproject.net.packet.PacketProcessor;
 import org.onosproject.net.packet.PacketService;
-
+import org.onosproject.routing.fpm.api.FpmRecord;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+
+import java.nio.ByteBuffer;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Dictionary;
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Set;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
 import static org.onlab.util.Tools.groupedThreads;
-
-
-import com.google.common.collect.ImmutableSet;
-
 import static org.onosproject.net.config.basics.SubjectFactories.APP_SUBJECT_FACTORY;
 
 /**
  * DHCP Relay Agent Application Component.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = DhcpRelayService.class)
 public class DhcpRelayManager implements DhcpRelayService {
     public static final String DHCP_RELAY_APP = "org.onosproject.dhcprelay";
     public static final String ROUTE_STORE_IMPL =
@@ -159,51 +153,51 @@
     );
 
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DhcpRelayStore dhcpRelayStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService compCfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DhcpFpmPrefixStore dhcpFpmPrefixStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY,
+    @Reference(cardinality = ReferenceCardinality.MANDATORY,
             target = "(version=4)")
     protected DhcpHandler v4Handler;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY,
+    @Reference(cardinality = ReferenceCardinality.MANDATORY,
             target = "(version=6)")
     protected DhcpHandler v6Handler;
 
-    @Property(name = "arpEnabled", boolValue = true,
-            label = "Enable Address resolution protocol")
+    //@Property(name = "arpEnabled", boolValue = true,
+    //        label = "Enable Address resolution protocol")
     protected boolean arpEnabled = true;
 
-    @Property(name = "dhcpPollInterval", intValue = 24 * 3600,
-            label = "dhcp relay poll interval")
+    //@Property(name = "dhcpPollInterval", intValue = 24 * 3600,
+    //        label = "dhcp relay poll interval")
     protected int dhcpPollInterval = 24 * 3600;
 
-    @Property(name = "dhcpFpmEnabled", boolValue = false,
-            label = "Enable DhcpRelay Fpm")
+    //@Property(name = "dhcpFpmEnabled", boolValue = false,
+    //        label = "Enable DhcpRelay Fpm")
     protected boolean dhcpFpmEnabled = false;
 
     private ScheduledExecutorService timerExecutor;
diff --git a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedDhcpRelayCountersStore.java b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedDhcpRelayCountersStore.java
index 4b7b26c..a668463 100644
--- a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedDhcpRelayCountersStore.java
+++ b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedDhcpRelayCountersStore.java
@@ -15,34 +15,31 @@
  */
 package org.onosproject.dhcprelay.store;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
+import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.ConsistentMap;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.onosproject.store.service.Versioned;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.onosproject.store.serializers.KryoNamespaces;
 
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
-import org.onosproject.store.service.Versioned;
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = DhcpRelayCountersStore.class)
 public class DistributedDhcpRelayCountersStore implements DhcpRelayCountersStore {
     private static final KryoNamespace.Builder APP_KYRO = KryoNamespace.newBuilder()
             .register(KryoNamespaces.API)
@@ -51,10 +48,10 @@
     private Logger log = LoggerFactory.getLogger(getClass());
     private ConsistentMap<String, DhcpRelayCounters> counters;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
 
diff --git a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedDhcpRelayStore.java b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedDhcpRelayStore.java
index 884d9cc..c622be2 100644
--- a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedDhcpRelayStore.java
+++ b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedDhcpRelayStore.java
@@ -16,12 +16,6 @@
 
 package org.onosproject.dhcprelay.store;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.DHCP;
 import org.onlab.packet.DHCP6;
 import org.onlab.util.KryoNamespace;
@@ -33,6 +27,11 @@
 import org.onosproject.store.service.EventuallyConsistentMapListener;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.WallClockTimestamp;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -44,8 +43,7 @@
 /**
  * Distributed DHCP relay store.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = DhcpRelayStore.class)
 public class DistributedDhcpRelayStore implements DhcpRelayStore {
     private static final KryoNamespace APP_KRYO = KryoNamespace.newBuilder()
             .register(KryoNamespaces.API)
@@ -60,7 +58,7 @@
     private EventuallyConsistentMap<HostId, DhcpRecord> dhcpRecords;
     private EventuallyConsistentMapListener<HostId, DhcpRecord> listener;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     @Activate
diff --git a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedFpmPrefixStore.java b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedFpmPrefixStore.java
index bc95d0b..f199671 100644
--- a/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedFpmPrefixStore.java
+++ b/apps/dhcprelay/src/main/java/org/onosproject/dhcprelay/store/DistributedFpmPrefixStore.java
@@ -16,45 +16,35 @@
 
 package org.onosproject.dhcprelay.store;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-import org.apache.felix.scr.annotations.Property;
-import org.onlab.util.KryoNamespace;
-import org.onosproject.store.StoreDelegate;
 import org.onlab.packet.IpPrefix;
+import org.onlab.util.KryoNamespace;
+import org.onosproject.routing.fpm.api.FpmPrefixStoreEvent;
+import org.onosproject.routing.fpm.api.FpmRecord;
+import org.onosproject.store.StoreDelegate;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.EventuallyConsistentMap;
 import org.onosproject.store.service.EventuallyConsistentMapEvent;
 import org.onosproject.store.service.EventuallyConsistentMapListener;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.WallClockTimestamp;
-import org.onosproject.routing.fpm.api.FpmRecord;
-import org.onosproject.routing.fpm.api.FpmPrefixStoreEvent;
-
-
-
-
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
 import java.util.Optional;
 
-
-
-
 import static com.google.common.base.Preconditions.checkNotNull;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Persistent Fpm Prefix Store with Listener.
  */
-@Component(immediate = true)
-@Property(name = "fpm_type", value = "DHCP")
-@Service
+@Component(immediate = true, service = DhcpFpmPrefixStore.class)
+//@Property(name = "fpm_type", value = "DHCP")
 public class DistributedFpmPrefixStore implements DhcpFpmPrefixStore {
 
     private static final KryoNamespace APP_KRYO = KryoNamespace.newBuilder()
@@ -68,7 +58,7 @@
     private EventuallyConsistentMap<IpPrefix, FpmRecord> dhcpFpmRecords;
     private EventuallyConsistentMapListener<IpPrefix, FpmRecord> listener;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     @Activate
diff --git a/apps/drivermatrix/src/main/java/org/onosproject/drivermatrix/DriverViewComponent.java b/apps/drivermatrix/src/main/java/org/onosproject/drivermatrix/DriverViewComponent.java
index 7fedcc1..a505755 100644
--- a/apps/drivermatrix/src/main/java/org/onosproject/drivermatrix/DriverViewComponent.java
+++ b/apps/drivermatrix/src/main/java/org/onosproject/drivermatrix/DriverViewComponent.java
@@ -16,11 +16,11 @@
 package org.onosproject.drivermatrix;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -42,7 +42,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // List of application views
diff --git a/apps/events/src/main/java/org/onosproject/events/EventHistoryManager.java b/apps/events/src/main/java/org/onosproject/events/EventHistoryManager.java
index 0bdd94b..549b358 100644
--- a/apps/events/src/main/java/org/onosproject/events/EventHistoryManager.java
+++ b/apps/events/src/main/java/org/onosproject/events/EventHistoryManager.java
@@ -15,22 +15,6 @@
  */
 package org.onosproject.events;
 
-import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor;
-import static org.onlab.util.Tools.groupedThreads;
-import static org.onlab.util.Tools.minPriority;
-
-import java.util.Deque;
-import java.util.concurrent.ConcurrentLinkedDeque;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.TimeUnit;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.UnmodifiableDeque;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.core.ApplicationId;
@@ -47,55 +31,68 @@
 import org.onosproject.net.intent.IntentService;
 import org.onosproject.net.link.LinkService;
 import org.onosproject.net.topology.TopologyService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.Deque;
+import java.util.concurrent.ConcurrentLinkedDeque;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+
+import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor;
+import static org.onlab.util.Tools.groupedThreads;
+import static org.onlab.util.Tools.minPriority;
+
 /**
  * Application to store history of instance local ONOS Events.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = EventHistoryManager.class)
 public class EventHistoryManager
     implements EventHistoryService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TopologyService topologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EdgePortService edgeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService netcfgService;
 
-    @Property(name = "excludeStatsEvent", boolValue = true,
-              label = "Exclude stats related events")
+    //@Property(name = "excludeStatsEvent", boolValue = true,
+    //          label = "Exclude stats related events")
     private boolean excludeStatsEvent = true;
 
-    @Property(name = "sizeLimit", intValue = 10_000,
-              label = "Number of event history to store")
+    //@Property(name = "sizeLimit", intValue = 10_000,
+    //          label = "Number of event history to store")
     private int sizeLimit = 10_000;
 
     private ApplicationId appId;
diff --git a/apps/evpn-route-service/app/src/main/java/org/onosproject/evpnrouteservice/impl/EvpnRouteManager.java b/apps/evpn-route-service/app/src/main/java/org/onosproject/evpnrouteservice/impl/EvpnRouteManager.java
index 3c9f223..f13b89a 100644
--- a/apps/evpn-route-service/app/src/main/java/org/onosproject/evpnrouteservice/impl/EvpnRouteManager.java
+++ b/apps/evpn-route-service/app/src/main/java/org/onosproject/evpnrouteservice/impl/EvpnRouteManager.java
@@ -16,23 +16,6 @@
 
 package org.onosproject.evpnrouteservice.impl;
 
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.ThreadFactory;
-
-import javax.annotation.concurrent.GuardedBy;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-
 import org.onosproject.evpnrouteservice.EvpnInternalRouteEvent;
 import org.onosproject.evpnrouteservice.EvpnRoute;
 import org.onosproject.evpnrouteservice.EvpnRouteAdminService;
@@ -43,23 +26,36 @@
 import org.onosproject.evpnrouteservice.EvpnRouteStore;
 import org.onosproject.evpnrouteservice.EvpnRouteStoreDelegate;
 import org.onosproject.evpnrouteservice.EvpnRouteTableId;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import javax.annotation.concurrent.GuardedBy;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.LinkedBlockingQueue;
+import java.util.concurrent.ThreadFactory;
+
 import static java.util.concurrent.Executors.newSingleThreadExecutor;
 import static org.onlab.util.Tools.groupedThreads;
 
 /**
  * Implementation of the EVPN route service.
  */
-@Service
-@Component
+@Component(service = { EvpnRouteService.class, EvpnRouteAdminService.class })
 public class EvpnRouteManager implements EvpnRouteService,
         EvpnRouteAdminService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EvpnRouteStore evpnRouteStore;
 
     @GuardedBy(value = "this")
diff --git a/apps/evpn-route-service/app/src/main/java/org/onosproject/evpnrouteservice/store/DistributedEvpnRouteStore.java b/apps/evpn-route-service/app/src/main/java/org/onosproject/evpnrouteservice/store/DistributedEvpnRouteStore.java
index de1dbd6..8917325 100644
--- a/apps/evpn-route-service/app/src/main/java/org/onosproject/evpnrouteservice/store/DistributedEvpnRouteStore.java
+++ b/apps/evpn-route-service/app/src/main/java/org/onosproject/evpnrouteservice/store/DistributedEvpnRouteStore.java
@@ -17,12 +17,6 @@
 package org.onosproject.evpnrouteservice.store;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.evpnrouteservice.EvpnInternalRouteEvent;
@@ -38,6 +32,11 @@
 import org.onosproject.store.service.SetEvent;
 import org.onosproject.store.service.SetEventListener;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -54,8 +53,7 @@
 /**
  * Route store based on distributed storage.
  */
-@Service
-@Component
+@Component(service = EvpnRouteStore.class)
 public class DistributedEvpnRouteStore extends
         AbstractStore<EvpnInternalRouteEvent,
                 EvpnRouteStoreDelegate>
@@ -64,7 +62,7 @@
     private static final Logger log = LoggerFactory
             .getLogger(DistributedEvpnRouteStore.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public StorageService storageService;
 
     private static final EvpnRouteTableId EVPN_IPV4 = new EvpnRouteTableId("evpn_ipv4");
diff --git a/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/manager/impl/EvpnManager.java b/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/manager/impl/EvpnManager.java
index 7a87fd5..edfbfd0 100644
--- a/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/manager/impl/EvpnManager.java
+++ b/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/manager/impl/EvpnManager.java
@@ -18,12 +18,6 @@
 
 import com.fasterxml.jackson.databind.JsonNode;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.osgi.DefaultServiceDirectory;
 import org.onlab.packet.EthType;
 import org.onlab.packet.IpAddress;
@@ -45,11 +39,6 @@
 import org.onosproject.evpnopenflow.rsc.vpnport.VpnPortEvent;
 import org.onosproject.evpnopenflow.rsc.vpnport.VpnPortListener;
 import org.onosproject.evpnopenflow.rsc.vpnport.VpnPortService;
-import org.onosproject.gluon.rsc.GluonConfig;
-import org.onosproject.incubator.net.resource.label.LabelResource;
-import org.onosproject.incubator.net.resource.label.LabelResourceAdminService;
-import org.onosproject.incubator.net.resource.label.LabelResourceId;
-import org.onosproject.incubator.net.resource.label.LabelResourceService;
 import org.onosproject.evpnrouteservice.EvpnInstanceName;
 import org.onosproject.evpnrouteservice.EvpnInstanceNextHop;
 import org.onosproject.evpnrouteservice.EvpnInstancePrefix;
@@ -66,6 +55,11 @@
 import org.onosproject.evpnrouteservice.Label;
 import org.onosproject.evpnrouteservice.RouteDistinguisher;
 import org.onosproject.evpnrouteservice.VpnRouteTarget;
+import org.onosproject.gluon.rsc.GluonConfig;
+import org.onosproject.incubator.net.resource.label.LabelResource;
+import org.onosproject.incubator.net.resource.label.LabelResourceAdminService;
+import org.onosproject.incubator.net.resource.label.LabelResourceId;
+import org.onosproject.incubator.net.resource.label.LabelResourceService;
 import org.onosproject.mastership.MastershipService;
 import org.onosproject.net.AnnotationKeys;
 import org.onosproject.net.Device;
@@ -94,6 +88,11 @@
 import org.onosproject.net.host.HostEvent;
 import org.onosproject.net.host.HostListener;
 import org.onosproject.net.host.HostService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.ArrayList;
@@ -151,56 +150,55 @@
 /**
  * Implementation of the EVPN service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = EvpnService.class)
 public class EvpnManager implements EvpnService {
     private final Logger log = getLogger(getClass());
     private static final EthType.EtherType ARP_TYPE = EthType.EtherType.ARP;
 
     protected ApplicationId appId;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EvpnRouteService evpnRouteService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EvpnRouteStore evpnRouteStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EvpnRouteAdminService evpnRouteAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LabelResourceAdminService labelAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LabelResourceService labelService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VpnInstanceService vpnInstanceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowObjectiveService flowObjectiveService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VpnPortService vpnPortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VpnAfConfigService vpnAfConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService configService;
 
     public Set<EvpnInstanceRoute> evpnInstanceRoutes = new HashSet<>();
diff --git a/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/baseport/impl/BasePortManager.java b/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/baseport/impl/BasePortManager.java
index 29c4d66..27f9fd7 100644
--- a/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/baseport/impl/BasePortManager.java
+++ b/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/baseport/impl/BasePortManager.java
@@ -18,12 +18,6 @@
 
 import com.fasterxml.jackson.databind.JsonNode;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
 import org.onlab.util.KryoNamespace;
@@ -55,6 +49,11 @@
 import org.onosproject.vtnrsc.TenantNetwork;
 import org.onosproject.vtnrsc.TenantNetworkId;
 import org.onosproject.vtnrsc.TenantRouter;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -77,8 +76,7 @@
 /**
  * Provides implementation of the BasePort APIs.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = BasePortService.class)
 public class BasePortManager implements BasePortService {
 
     private final Set<BasePortListener> listeners = Sets
@@ -105,10 +103,10 @@
     protected EventuallyConsistentMap<BasePortId, BasePort> vPortStore;
     protected ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     @Activate
diff --git a/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpnafconfig/impl/VpnAfConfigManager.java b/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpnafconfig/impl/VpnAfConfigManager.java
index 7645c2e..a2ee02c 100644
--- a/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpnafconfig/impl/VpnAfConfigManager.java
+++ b/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpnafconfig/impl/VpnAfConfigManager.java
@@ -18,12 +18,6 @@
 
 import com.fasterxml.jackson.databind.JsonNode;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.CoreService;
 import org.onosproject.evpnopenflow.rsc.DefaultVpnAfConfig;
@@ -36,6 +30,11 @@
 import org.onosproject.store.service.EventuallyConsistentMap;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.WallClockTimestamp;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -75,8 +74,7 @@
 /**
  * Provides implementation of the VPN af config APIs.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = VpnAfConfigService.class)
 public class VpnAfConfigManager implements VpnAfConfigService {
     private final Logger log = LoggerFactory.getLogger(getClass());
     private final Set<VpnAfConfigListener> listeners = Sets
@@ -84,10 +82,10 @@
 
     protected EventuallyConsistentMap<VpnRouteTarget, VpnAfConfig>
             vpnAfConfigStore;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     @Activate
diff --git a/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpninstance/impl/VpnInstanceManager.java b/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpninstance/impl/VpnInstanceManager.java
index 20c6d15..91eba1d 100644
--- a/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpninstance/impl/VpnInstanceManager.java
+++ b/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpninstance/impl/VpnInstanceManager.java
@@ -18,12 +18,6 @@
 
 import com.fasterxml.jackson.databind.JsonNode;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -34,13 +28,18 @@
 import org.onosproject.evpnopenflow.rsc.vpnafconfig.VpnAfConfigService;
 import org.onosproject.evpnopenflow.rsc.vpninstance.VpnInstanceService;
 import org.onosproject.evpnrouteservice.EvpnInstanceName;
-import org.onosproject.routeservice.RouteAdminService;
 import org.onosproject.evpnrouteservice.RouteDistinguisher;
 import org.onosproject.evpnrouteservice.VpnRouteTarget;
+import org.onosproject.routeservice.RouteAdminService;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.EventuallyConsistentMap;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.WallClockTimestamp;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -80,8 +79,7 @@
 /**
  * Provides implementation of the VpnInstance APIs.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = VpnInstanceService.class)
 public class VpnInstanceManager implements VpnInstanceService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -89,16 +87,16 @@
     protected EventuallyConsistentMap<VpnInstanceId, VpnInstance> vpnInstanceStore;
     protected ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteAdminService routeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VpnAfConfigService vpnAfConfigService;
 
     @Activate
diff --git a/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpnport/impl/VpnPortManager.java b/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpnport/impl/VpnPortManager.java
index 2babba6..b62d034 100644
--- a/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpnport/impl/VpnPortManager.java
+++ b/apps/evpnopenflow/src/main/java/org/onosproject/evpnopenflow/rsc/vpnport/impl/VpnPortManager.java
@@ -18,12 +18,6 @@
 
 import com.fasterxml.jackson.databind.JsonNode;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
 import org.onlab.packet.MacAddress;
@@ -64,6 +58,11 @@
 import org.onosproject.vtnrsc.subnet.SubnetService;
 import org.onosproject.vtnrsc.tenantnetwork.TenantNetworkService;
 import org.onosproject.vtnrsc.virtualport.VirtualPortService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -100,8 +99,7 @@
 /**
  * Provides implementation of the VpnPort service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = VpnPortService.class)
 public class VpnPortManager implements VpnPortService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -111,22 +109,22 @@
     protected EventuallyConsistentMap<VpnPortId, VpnPort> vpnPortStore;
     protected ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected BasePortService basePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VirtualPortService virtualPortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TenantNetworkService tenantNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SubnetService subnetService;
 
     @Activate
diff --git a/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTableComponent.java b/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTableComponent.java
index 927de45..3ab3d15 100644
--- a/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTableComponent.java
+++ b/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTableComponent.java
@@ -16,11 +16,11 @@
 package org.onosproject.faultmanagement.alarms.gui;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -43,7 +43,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // List of application views
diff --git a/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTopovComponent.java b/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTopovComponent.java
index 1c136d3..9e4092e 100644
--- a/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTopovComponent.java
+++ b/apps/faultmanagement/fmgui/src/main/java/org/onosproject/faultmanagement/alarms/gui/AlarmTopovComponent.java
@@ -16,11 +16,11 @@
 package org.onosproject.faultmanagement.alarms.gui;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -43,7 +43,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // List of application views
diff --git a/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/AlarmManager.java b/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/AlarmManager.java
index 74ed2c2..e9a4695 100644
--- a/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/AlarmManager.java
+++ b/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/AlarmManager.java
@@ -16,13 +16,6 @@
 package org.onosproject.faultmanagement.impl;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.ItemNotFoundException;
 import org.onosproject.faultmanagement.api.AlarmStore;
 import org.onosproject.faultmanagement.api.AlarmStoreDelegate;
@@ -44,6 +37,12 @@
 import org.onosproject.net.device.DeviceService;
 import org.onosproject.net.provider.AbstractListenerProviderRegistry;
 import org.onosproject.net.provider.AbstractProviderService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -59,21 +58,20 @@
 /**
  * Implementation of the Alarm service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = { AlarmService.class, AlarmProviderRegistry.class })
 public class AlarmManager
         extends AbstractListenerProviderRegistry<AlarmEvent, AlarmListener, AlarmProvider, AlarmProviderService>
         implements AlarmService, AlarmProviderRegistry {
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected AlarmStore store;
 
     protected AlarmStoreDelegate delegate = this::post;
diff --git a/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/DistributedAlarmStore.java b/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/DistributedAlarmStore.java
index 4a91749..2c85310 100644
--- a/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/DistributedAlarmStore.java
+++ b/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/DistributedAlarmStore.java
@@ -17,13 +17,6 @@
 package org.onosproject.faultmanagement.impl;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.faultmanagement.api.AlarmStore;
 import org.onosproject.faultmanagement.api.AlarmStoreDelegate;
 import org.onosproject.incubator.net.faultmanagement.alarm.Alarm;
@@ -39,6 +32,12 @@
 import org.onosproject.store.service.MapEventListener;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -52,8 +51,7 @@
  * Manages information of alarms using gossip protocol to distribute
  * information.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = AlarmStore.class)
 public class DistributedAlarmStore
         extends AbstractStore<AlarmEvent, AlarmStoreDelegate>
         implements AlarmStore {
@@ -62,7 +60,7 @@
     private ConsistentMap<AlarmId, Alarm> alarms;
     private Map<AlarmId, Alarm> alarmsMap;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private final MapEventListener<AlarmId, Alarm> listener = new InternalListener();
diff --git a/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/PollingAlarmProvider.java b/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/PollingAlarmProvider.java
index c74934c..eeee627 100644
--- a/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/PollingAlarmProvider.java
+++ b/apps/faultmanagement/fmmgr/src/main/java/org/onosproject/faultmanagement/impl/PollingAlarmProvider.java
@@ -15,13 +15,6 @@
  */
 package org.onosproject.faultmanagement.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.incubator.net.faultmanagement.alarm.AlarmConsumer;
 import org.onosproject.incubator.net.faultmanagement.alarm.AlarmProvider;
@@ -38,6 +31,12 @@
 import org.onosproject.net.provider.AbstractProvider;
 import org.onosproject.net.provider.ProviderId;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Dictionary;
@@ -62,16 +61,16 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected AlarmProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
     protected AlarmProviderService providerService;
@@ -89,14 +88,14 @@
     private static final int CORE_POOL_SIZE = 10;
 
     private static final int DEFAULT_POLL_FREQUENCY_SECONDS = 60;
-    @Property(name = "alarmPollFrequencySeconds", intValue = DEFAULT_POLL_FREQUENCY_SECONDS,
-            label = "Frequency (in seconds) for polling alarm from devices")
+    //@Property(name = "alarmPollFrequencySeconds", intValue = DEFAULT_POLL_FREQUENCY_SECONDS,
+    //        label = "Frequency (in seconds) for polling alarm from devices")
     protected int alarmPollFrequencySeconds = DEFAULT_POLL_FREQUENCY_SECONDS;
 
     // TODO implement purging of old alarms.
     private static final int DEFAULT_CLEAR_FREQUENCY_SECONDS = 500;
-    @Property(name = "clearedAlarmPurgeSeconds", intValue = DEFAULT_CLEAR_FREQUENCY_SECONDS,
-            label = "Frequency (in seconds) for deleting cleared alarms")
+    //@Property(name = "clearedAlarmPurgeSeconds", intValue = DEFAULT_CLEAR_FREQUENCY_SECONDS,
+    //        label = "Frequency (in seconds) for deleting cleared alarms")
     private int clearedAlarmPurgeFrequencySeconds = DEFAULT_CLEAR_FREQUENCY_SECONDS;
 
     public PollingAlarmProvider() {
diff --git a/apps/faultmanagement/fmweb/src/main/java/org/onosproject/faultmanagement/web/AlarmCodecRegistrator.java b/apps/faultmanagement/fmweb/src/main/java/org/onosproject/faultmanagement/web/AlarmCodecRegistrator.java
index b6bccd0..0a2120a 100644
--- a/apps/faultmanagement/fmweb/src/main/java/org/onosproject/faultmanagement/web/AlarmCodecRegistrator.java
+++ b/apps/faultmanagement/fmweb/src/main/java/org/onosproject/faultmanagement/web/AlarmCodecRegistrator.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.faultmanagement.web;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.codec.CodecService;
 import org.onosproject.incubator.net.faultmanagement.alarm.Alarm;
 
@@ -34,7 +34,7 @@
 
     private static final Logger log = LoggerFactory.getLogger(AlarmCodecRegistrator.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CodecService codecService;
 
     @Activate
diff --git a/apps/flowanalyzer/src/main/java/org/onosproject/flowanalyzer/FlowAnalyzer.java b/apps/flowanalyzer/src/main/java/org/onosproject/flowanalyzer/FlowAnalyzer.java
index 9f899ac..990ec45 100644
--- a/apps/flowanalyzer/src/main/java/org/onosproject/flowanalyzer/FlowAnalyzer.java
+++ b/apps/flowanalyzer/src/main/java/org/onosproject/flowanalyzer/FlowAnalyzer.java
@@ -15,34 +15,33 @@
  */
 package org.onosproject.flowanalyzer;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.HostId;
+import org.onosproject.net.Link;
 import org.onosproject.net.PortNumber;
 import org.onosproject.net.flow.FlowEntry;
 import org.onosproject.net.flow.FlowRuleService;
-import org.onosproject.net.DeviceId;
-import org.onosproject.net.HostId;
 import org.onosproject.net.flow.criteria.Criteria;
 import org.onosproject.net.flow.criteria.Criterion;
 import org.onosproject.net.flow.criteria.PortCriterion;
 import org.onosproject.net.flow.instructions.Instruction;
 import org.onosproject.net.flow.instructions.Instructions;
-import org.onosproject.net.topology.TopologyService;
-import org.onosproject.net.topology.TopologyGraph;
 import org.onosproject.net.link.LinkService;
-import org.onosproject.net.Link;
+import org.onosproject.net.topology.TopologyGraph;
+import org.onosproject.net.topology.TopologyService;
 import org.onosproject.net.topology.TopologyVertex;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
+import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
-import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;
 
@@ -51,19 +50,18 @@
 /**
  * Simple flow space analyzer app.
  */
-@Component(immediate = true)
-@Service(value = FlowAnalyzer.class)
+@Component(immediate = true, service = FlowAnalyzer.class)
 public class FlowAnalyzer {
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TopologyService topologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
     @Activate
diff --git a/apps/fwd/src/main/java/org/onosproject/fwd/ReactiveForwarding.java b/apps/fwd/src/main/java/org/onosproject/fwd/ReactiveForwarding.java
index 9917a85..77c304b 100644
--- a/apps/fwd/src/main/java/org/onosproject/fwd/ReactiveForwarding.java
+++ b/apps/fwd/src/main/java/org/onosproject/fwd/ReactiveForwarding.java
@@ -16,14 +16,6 @@
 package org.onosproject.fwd;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.ICMP;
 import org.onlab.packet.ICMP6;
@@ -79,6 +71,12 @@
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.WallClockTimestamp;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Dictionary;
@@ -96,8 +94,7 @@
 /**
  * Sample reactive forwarding application.
  */
-@Component(immediate = true)
-@Service(value = ReactiveForwarding.class)
+@Component(immediate = true, service = ReactiveForwarding.class)
 public class ReactiveForwarding {
 
     private static final int DEFAULT_TIMEOUT = 10;
@@ -105,28 +102,28 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TopologyService topologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowObjectiveService flowObjectiveService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private ReactivePacketProcessor processor = new ReactivePacketProcessor();
@@ -135,69 +132,69 @@
 
     private ApplicationId appId;
 
-    @Property(name = "packetOutOnly", boolValue = false,
-            label = "Enable packet-out only forwarding; default is false")
+    //@Property(name = "packetOutOnly", boolValue = false,
+    //        label = "Enable packet-out only forwarding; default is false")
     private boolean packetOutOnly = false;
 
-    @Property(name = "packetOutOfppTable", boolValue = false,
-            label = "Enable first packet forwarding using OFPP_TABLE port " +
-                    "instead of PacketOut with actual port; default is false")
+    //@Property(name = "packetOutOfppTable", boolValue = false,
+    //        label = "Enable first packet forwarding using OFPP_TABLE port " +
+    //                "instead of PacketOut with actual port; default is false")
     private boolean packetOutOfppTable = false;
 
-    @Property(name = "flowTimeout", intValue = DEFAULT_TIMEOUT,
-            label = "Configure Flow Timeout for installed flow rules; " +
-                    "default is 10 sec")
+    //@Property(name = "flowTimeout", intValue = DEFAULT_TIMEOUT,
+    //        label = "Configure Flow Timeout for installed flow rules; " +
+    //                "default is 10 sec")
     private int flowTimeout = DEFAULT_TIMEOUT;
 
-    @Property(name = "flowPriority", intValue = DEFAULT_PRIORITY,
-            label = "Configure Flow Priority for installed flow rules; " +
-                    "default is 10")
+    //@Property(name = "flowPriority", intValue = DEFAULT_PRIORITY,
+    //        label = "Configure Flow Priority for installed flow rules; " +
+    //                "default is 10")
     private int flowPriority = DEFAULT_PRIORITY;
 
-    @Property(name = "ipv6Forwarding", boolValue = false,
-            label = "Enable IPv6 forwarding; default is false")
+    //@Property(name = "ipv6Forwarding", boolValue = false,
+    //        label = "Enable IPv6 forwarding; default is false")
     private boolean ipv6Forwarding = false;
 
-    @Property(name = "matchDstMacOnly", boolValue = false,
-            label = "Enable matching Dst Mac Only; default is false")
+    //@Property(name = "matchDstMacOnly", boolValue = false,
+    //        label = "Enable matching Dst Mac Only; default is false")
     private boolean matchDstMacOnly = false;
 
-    @Property(name = "matchVlanId", boolValue = false,
-            label = "Enable matching Vlan ID; default is false")
+    //@Property(name = "matchVlanId", boolValue = false,
+    //        label = "Enable matching Vlan ID; default is false")
     private boolean matchVlanId = false;
 
-    @Property(name = "matchIpv4Address", boolValue = false,
-            label = "Enable matching IPv4 Addresses; default is false")
+    //@Property(name = "matchIpv4Address", boolValue = false,
+    //        label = "Enable matching IPv4 Addresses; default is false")
     private boolean matchIpv4Address = false;
 
-    @Property(name = "matchIpv4Dscp", boolValue = false,
-            label = "Enable matching IPv4 DSCP and ECN; default is false")
+    //@Property(name = "matchIpv4Dscp", boolValue = false,
+    //        label = "Enable matching IPv4 DSCP and ECN; default is false")
     private boolean matchIpv4Dscp = false;
 
-    @Property(name = "matchIpv6Address", boolValue = false,
-            label = "Enable matching IPv6 Addresses; default is false")
+    //@Property(name = "matchIpv6Address", boolValue = false,
+    //        label = "Enable matching IPv6 Addresses; default is false")
     private boolean matchIpv6Address = false;
 
-    @Property(name = "matchIpv6FlowLabel", boolValue = false,
-            label = "Enable matching IPv6 FlowLabel; default is false")
+    //@Property(name = "matchIpv6FlowLabel", boolValue = false,
+    //        label = "Enable matching IPv6 FlowLabel; default is false")
     private boolean matchIpv6FlowLabel = false;
 
-    @Property(name = "matchTcpUdpPorts", boolValue = false,
-            label = "Enable matching TCP/UDP ports; default is false")
+    //@Property(name = "matchTcpUdpPorts", boolValue = false,
+    //        label = "Enable matching TCP/UDP ports; default is false")
     private boolean matchTcpUdpPorts = false;
 
-    @Property(name = "matchIcmpFields", boolValue = false,
-            label = "Enable matching ICMPv4 and ICMPv6 fields; " +
-                    "default is false")
+    //@Property(name = "matchIcmpFields", boolValue = false,
+    //        label = "Enable matching ICMPv4 and ICMPv6 fields; " +
+    //                "default is false")
     private boolean matchIcmpFields = false;
 
 
-    @Property(name = "ignoreIPv4Multicast", boolValue = false,
-            label = "Ignore (do not forward) IPv4 multicast packets; default is false")
+    //@Property(name = "ignoreIPv4Multicast", boolValue = false,
+    //        label = "Ignore (do not forward) IPv4 multicast packets; default is false")
     private boolean ignoreIpv4McastPackets = false;
 
-    @Property(name = "recordMetrics", boolValue = false,
-            label = "Enable record metrics for reactive forwarding")
+    //@Property(name = "recordMetrics", boolValue = false,
+    //        label = "Enable record metrics for reactive forwarding")
     private boolean recordMetrics = false;
 
     private final TopologyListener topologyListener = new InternalTopologyListener();
diff --git a/apps/gangliametrics/src/main/java/org/onosproject/gangliametrics/DefaultGangliaMetricsReporter.java b/apps/gangliametrics/src/main/java/org/onosproject/gangliametrics/DefaultGangliaMetricsReporter.java
index b3c7dfc..742564a 100644
--- a/apps/gangliametrics/src/main/java/org/onosproject/gangliametrics/DefaultGangliaMetricsReporter.java
+++ b/apps/gangliametrics/src/main/java/org/onosproject/gangliametrics/DefaultGangliaMetricsReporter.java
@@ -19,18 +19,17 @@
 import com.codahale.metrics.ganglia.GangliaReporter;
 import info.ganglia.gmetric4j.gmetric.GMetric;
 import org.apache.commons.lang.StringUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.metrics.MetricsService;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.CoreService;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.io.IOException;
@@ -57,33 +56,33 @@
     private static final int DEFAULT_TTL = 1;
     private static final String DEFAULT_METRIC_NAMES = "default";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MetricsService metricsService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Property(name = "monitorAll", boolValue = true,
-              label = "Enable to monitor all of metrics stored in metric registry default is true")
+    //@Property(name = "monitorAll", boolValue = true,
+    //          label = "Enable to monitor all of metrics stored in metric registry default is true")
     protected boolean monitorAll = true;
 
-    @Property(name = "metricNames", value = DEFAULT_METRIC_NAMES,
-              label = "Names of metric to be monitored; default metric names are 'default'")
+    //@Property(name = "metricNames", value = DEFAULT_METRIC_NAMES,
+    //          label = "Names of metric to be monitored; default metric names are 'default'")
     protected String metricNames = DEFAULT_METRIC_NAMES;
 
-    @Property(name = "address", value = DEFAULT_ADDRESS,
-              label = "IP address of ganglia monitoring server; default is localhost")
+    //@Property(name = "address", value = DEFAULT_ADDRESS,
+    //          label = "IP address of ganglia monitoring server; default is localhost")
     protected String address = DEFAULT_ADDRESS;
 
-    @Property(name = "port", intValue = DEFAULT_PORT,
-              label = "Port number of ganglia monitoring server; default is 8649")
+    //@Property(name = "port", intValue = DEFAULT_PORT,
+    //          label = "Port number of ganglia monitoring server; default is 8649")
     protected int port = DEFAULT_PORT;
 
-    @Property(name = "ttl", intValue = DEFAULT_TTL,
-              label = "TTL value of ganglia monitoring server; default is 1")
+    //@Property(name = "ttl", intValue = DEFAULT_TTL,
+    //          label = "TTL value of ganglia monitoring server; default is 1")
     protected int ttl = DEFAULT_TTL;
 
     private GMetric ganglia;
diff --git a/apps/gluon/src/main/java/org/onosproject/gluon/manager/GluonManager.java b/apps/gluon/src/main/java/org/onosproject/gluon/manager/GluonManager.java
index c0a4b67..1d8b32a 100644
--- a/apps/gluon/src/main/java/org/onosproject/gluon/manager/GluonManager.java
+++ b/apps/gluon/src/main/java/org/onosproject/gluon/manager/GluonManager.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.gluon.manager;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.core.CoreService;
 import org.onosproject.gluon.rsc.GluonConfig;
 import org.onosproject.gluon.rsc.GluonServer;
@@ -41,10 +41,10 @@
     private final Logger log = LoggerFactory.getLogger(getClass());
     private static final String APP_ID = "org.onosproject.gluon";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry configRegistry;
 
 
diff --git a/apps/graphitemetrics/src/main/java/org/onosproject/graphitemetrics/DefaultGraphiteMetricsReporter.java b/apps/graphitemetrics/src/main/java/org/onosproject/graphitemetrics/DefaultGraphiteMetricsReporter.java
index c4995a5..61dd14c 100644
--- a/apps/graphitemetrics/src/main/java/org/onosproject/graphitemetrics/DefaultGraphiteMetricsReporter.java
+++ b/apps/graphitemetrics/src/main/java/org/onosproject/graphitemetrics/DefaultGraphiteMetricsReporter.java
@@ -20,18 +20,17 @@
 import com.codahale.metrics.graphite.Graphite;
 import com.codahale.metrics.graphite.GraphiteReporter;
 import org.apache.commons.lang.StringUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.metrics.MetricsService;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.CoreService;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.net.InetSocketAddress;
@@ -57,37 +56,37 @@
     private static final String DEFAULT_METRIC_NAME_PREFIX = "onos";
 
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MetricsService metricsService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Property(name = "monitorAll", boolValue = true,
-            label = "Enable to monitor all of metrics stored in metric registry default is true")
+    //@Property(name = "monitorAll", boolValue = true,
+    //        label = "Enable to monitor all of metrics stored in metric registry default is true")
     protected boolean monitorAll = true;
 
-    @Property(name = "metricNames", value = DEFAULT_METRIC_NAMES,
-            label = "Names of metric to be monitored; default metric names are 'default'")
+    //@Property(name = "metricNames", value = DEFAULT_METRIC_NAMES,
+    //        label = "Names of metric to be monitored; default metric names are 'default'")
     protected String metricNames = DEFAULT_METRIC_NAMES;
 
-    @Property(name = "address", value = DEFAULT_ADDRESS,
-            label = "IP address of graphite monitoring server; default is localhost")
+    //@Property(name = "address", value = DEFAULT_ADDRESS,
+    //        label = "IP address of graphite monitoring server; default is localhost")
     protected String address = DEFAULT_ADDRESS;
 
-    @Property(name = "port", intValue = DEFAULT_PORT,
-            label = "Port number of graphite monitoring server; default is 2003")
+    //@Property(name = "port", intValue = DEFAULT_PORT,
+    //        label = "Port number of graphite monitoring server; default is 2003")
     protected int port = DEFAULT_PORT;
 
-    @Property(name = "reportPeriod", intValue = DEFAULT_REPORT_PERIOD,
-            label = "Reporting period of graphite monitoring server; default is 1")
+    //@Property(name = "reportPeriod", intValue = DEFAULT_REPORT_PERIOD,
+    //        label = "Reporting period of graphite monitoring server; default is 1")
     protected int reportPeriod = DEFAULT_REPORT_PERIOD;
 
-    @Property(name = "metricNamePrefix", value = DEFAULT_METRIC_NAME_PREFIX,
-            label = "Prefix of metric name for graphite back-end server; default is 'onos'")
+    //@Property(name = "metricNamePrefix", value = DEFAULT_METRIC_NAME_PREFIX,
+    //        label = "Prefix of metric name for graphite back-end server; default is 'onos'")
     protected String metricNamePrefix = DEFAULT_METRIC_NAME_PREFIX;
 
     private Graphite graphite;
diff --git a/apps/imr/app/src/main/java/org/onosproject/imr/IntentMonitorAndRerouteManager.java b/apps/imr/app/src/main/java/org/onosproject/imr/IntentMonitorAndRerouteManager.java
index 9b5d070..187ef19 100644
--- a/apps/imr/app/src/main/java/org/onosproject/imr/IntentMonitorAndRerouteManager.java
+++ b/apps/imr/app/src/main/java/org/onosproject/imr/IntentMonitorAndRerouteManager.java
@@ -18,12 +18,6 @@
 
 import com.google.common.collect.ImmutableSet;
 import org.apache.commons.lang3.tuple.Pair;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.imr.data.Path;
@@ -61,6 +55,11 @@
 import org.onosproject.store.service.DistributedSet;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -82,8 +81,7 @@
 /**
  * Manager of Intent Monitor and Reroute.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = IntentMonitorAndRerouteService.class)
 public class IntentMonitorAndRerouteManager implements IntentMonitorAndRerouteService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -93,22 +91,22 @@
 
     private DistributedSet<Key> toBeMonitoredIntents;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowStatisticStore statsStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private InternalIntentListener intentListener = new InternalIntentListener();
diff --git a/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/IntControl.java b/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/IntControl.java
index efd3590..cbd520c 100644
--- a/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/IntControl.java
+++ b/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/IntControl.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.inbandtelemetry.app;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.core.CoreService;
 import org.onosproject.inbandtelemetry.api.IntService;
 import org.onosproject.net.host.HostService;
@@ -33,13 +33,13 @@
 //    private static final int collectorPort = 1234;
 //    private static final IpAddress collectorIp = IpAddress.valueOf("10.0.0.3");
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntService intService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
     @Activate
diff --git a/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/ui/IntAppUiComponent.java b/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/ui/IntAppUiComponent.java
index 94c823e..9769bb0 100644
--- a/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/ui/IntAppUiComponent.java
+++ b/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/ui/IntAppUiComponent.java
@@ -16,11 +16,11 @@
 package org.onosproject.inbandtelemetry.app.ui;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -41,7 +41,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // List of application views
diff --git a/apps/inbandtelemetry/impl/src/main/java/org/onosproject/inbandtelemetry/impl/IntManager.java b/apps/inbandtelemetry/impl/src/main/java/org/onosproject/inbandtelemetry/impl/IntManager.java
index 5cf32da..df0fc91 100644
--- a/apps/inbandtelemetry/impl/src/main/java/org/onosproject/inbandtelemetry/impl/IntManager.java
+++ b/apps/inbandtelemetry/impl/src/main/java/org/onosproject/inbandtelemetry/impl/IntManager.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.inbandtelemetry.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -42,6 +36,11 @@
 import org.onosproject.store.service.ConsistentMap;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Map;
@@ -53,8 +52,7 @@
 /**
  * Implementation of IntService, for controlling INT-capable pipelines.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = IntService.class)
 public class IntManager implements IntService {
     private final String appName = "org.onosproject.inbandtelemetry";
     private ApplicationId appId;
@@ -66,19 +64,19 @@
 
     private InternalHostListener hostListener = new InternalHostListener();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private FlowRuleService flowRuleService;
 
     @Activate
diff --git a/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsReporter.java b/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsReporter.java
index 1425f79..a3bb6ef 100644
--- a/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsReporter.java
+++ b/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsReporter.java
@@ -19,14 +19,6 @@
 import com.izettle.metrics.influxdb.InfluxDbHttpSender;
 import com.izettle.metrics.influxdb.InfluxDbReporter;
 import org.apache.commons.lang.StringUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.metrics.MetricsService;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
@@ -34,6 +26,12 @@
 import org.onosproject.cluster.ControllerNode;
 import org.onosproject.core.CoreService;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Dictionary;
@@ -44,8 +42,7 @@
 /**
  * A Metric reporter that reports all metrics value to influxDB server.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = InfluxDbMetricsReporter.class)
 public class DefaultInfluxDbMetricsReporter implements InfluxDbMetricsReporter {
     private final Logger log = getLogger(getClass());
 
@@ -58,26 +55,26 @@
     private static final int DEFAULT_CONN_TIMEOUT = 1000;
     private static final int DEFAULT_READ_TIMEOUT = 1000;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MetricsService metricsService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Property(name = "monitorAll", boolValue = true,
-            label = "Enable to monitor all of metrics stored in metric registry " +
-                    "default is true")
+    //@Property(name = "monitorAll", boolValue = true,
+    //        label = "Enable to monitor all of metrics stored in metric registry " +
+    //                "default is true")
     protected boolean monitorAll = true;
 
-    @Property(name = "metricNames", value = DEFAULT_METRIC_NAMES,
-            label = "Names of metric to be monitored in third party monitoring " +
-                    "server; default metric names are 'default'")
+    //@Property(name = "metricNames", value = DEFAULT_METRIC_NAMES,
+    //        label = "Names of metric to be monitored in third party monitoring " +
+    //                "server; default metric names are 'default'")
     protected String metricNames = DEFAULT_METRIC_NAMES;
 
     protected String address;
diff --git a/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsRetriever.java b/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsRetriever.java
index a174925..1871b5a 100644
--- a/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsRetriever.java
+++ b/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/DefaultInfluxDbMetricsRetriever.java
@@ -21,18 +21,17 @@
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
 import org.apache.commons.lang.StringUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.influxdb.InfluxDB;
 import org.influxdb.InfluxDBFactory;
 import org.influxdb.dto.Query;
 import org.influxdb.dto.QueryResult;
 import org.onosproject.cluster.NodeId;
 import org.onosproject.core.CoreService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.List;
@@ -45,8 +44,7 @@
 /**
  * A Metric retriever implementation for querying metrics from influxDB server.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = InfluxDbMetricsRetriever.class)
 public class DefaultInfluxDbMetricsRetriever implements InfluxDbMetricsRetriever {
 
     private final Logger log = getLogger(getClass());
@@ -72,7 +70,7 @@
         TIME_UNIT_MAP.put(TimeUnit.SECONDS, "s");
     }
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     protected String database;
diff --git a/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/InfluxDbMetricsConfig.java b/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/InfluxDbMetricsConfig.java
index 499e4b9..c5301df 100644
--- a/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/InfluxDbMetricsConfig.java
+++ b/apps/influxdbmetrics/src/main/java/org/onosproject/influxdbmetrics/InfluxDbMetricsConfig.java
@@ -15,17 +15,16 @@
  */
 package org.onosproject.influxdbmetrics;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.CoreService;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Dictionary;
@@ -47,36 +46,36 @@
     private static final String DEFAULT_USERNAME = "onos";
     private static final String DEFAULT_PASSWORD = "onos.password";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InfluxDbMetricsReporter influxDbMetricsReporter;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InfluxDbMetricsRetriever influxDbMetricsRetriever;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Property(name = "address", value = DEFAULT_ADDRESS,
-            label = "IP address of influxDB server; default is localhost")
+    //@Property(name = "address", value = DEFAULT_ADDRESS,
+    //        label = "IP address of influxDB server; default is localhost")
     protected String address = DEFAULT_ADDRESS;
 
-    @Property(name = "port", intValue = DEFAULT_PORT,
-            label = "Port number of influxDB server; default is 8086")
+    //@Property(name = "port", intValue = DEFAULT_PORT,
+    //        label = "Port number of influxDB server; default is 8086")
     protected int port = DEFAULT_PORT;
 
-    @Property(name = "database", value = DEFAULT_DATABASE,
-            label = "Database name of influxDB server; default is onos")
+    //@Property(name = "database", value = DEFAULT_DATABASE,
+    //        label = "Database name of influxDB server; default is onos")
     protected String database = DEFAULT_DATABASE;
 
-    @Property(name = "username", value = DEFAULT_USERNAME,
-            label = "Username of influxDB server; default is onos")
+    //@Property(name = "username", value = DEFAULT_USERNAME,
+    //        label = "Username of influxDB server; default is onos")
     protected String username = DEFAULT_USERNAME;
 
-    @Property(name = "password", value = DEFAULT_PASSWORD,
-            label = "Password of influxDB server; default is onos.password")
+    //@Property(name = "password", value = DEFAULT_PASSWORD,
+    //        label = "Password of influxDB server; default is onos.password")
     protected String password = DEFAULT_PASSWORD;
 
     @Activate
diff --git a/apps/intentsync/src/main/java/org/onosproject/intentsync/IntentSynchronizer.java b/apps/intentsync/src/main/java/org/onosproject/intentsync/IntentSynchronizer.java
index c15ea3c..1f33976 100644
--- a/apps/intentsync/src/main/java/org/onosproject/intentsync/IntentSynchronizer.java
+++ b/apps/intentsync/src/main/java/org/onosproject/intentsync/IntentSynchronizer.java
@@ -16,12 +16,6 @@
 
 package org.onosproject.intentsync;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.LeadershipEvent;
 import org.onosproject.cluster.LeadershipEventListener;
@@ -34,6 +28,11 @@
 import org.onosproject.net.intent.IntentState;
 import org.onosproject.net.intent.IntentUtils;
 import org.onosproject.net.intent.Key;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -51,8 +50,8 @@
 /**
  * Synchronizes intents between an in-memory intent store and the IntentService.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = { IntentSynchronizationService.class,
+        IntentSynchronizationAdminService.class })
 public class IntentSynchronizer implements IntentSynchronizationService,
         IntentSynchronizationAdminService {
 
@@ -60,16 +59,16 @@
 
     private static final String APP_NAME = "org.onosproject.intentsynchronizer";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
     private NodeId localNodeId;
diff --git a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/EventConversionManager.java b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/EventConversionManager.java
index c96b81b..5c90325 100644
--- a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/EventConversionManager.java
+++ b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/EventConversionManager.java
@@ -16,10 +16,9 @@
 
 package org.onosproject.kafkaintegration.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Service;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
 import org.onosproject.event.Event;
 import org.onosproject.kafkaintegration.api.EventConversionService;
 import org.onosproject.kafkaintegration.api.dto.OnosEvent;
@@ -38,8 +37,7 @@
  * Implementation of Event Conversion Service.
  *
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = EventConversionService.class)
 public class EventConversionManager implements EventConversionService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
diff --git a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/EventSubscriptionManager.java b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/EventSubscriptionManager.java
index fdb7ed5..3671abb 100644
--- a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/EventSubscriptionManager.java
+++ b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/EventSubscriptionManager.java
@@ -15,19 +15,7 @@
  */
 package org.onosproject.kafkaintegration.impl;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.UUID;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.collect.ImmutableList;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.kafkaintegration.api.EventSubscriptionService;
@@ -35,25 +23,34 @@
 import org.onosproject.kafkaintegration.api.dto.DefaultEventSubscriber;
 import org.onosproject.kafkaintegration.api.dto.EventSubscriber;
 import org.onosproject.kafkaintegration.api.dto.EventSubscriberGroupId;
-import org.onosproject.kafkaintegration.api.dto.RegistrationResponse;
 import org.onosproject.kafkaintegration.api.dto.OnosEvent;
 import org.onosproject.kafkaintegration.api.dto.OnosEvent.Type;
+import org.onosproject.kafkaintegration.api.dto.RegistrationResponse;
 import org.onosproject.kafkaintegration.errors.InvalidApplicationException;
 import org.onosproject.kafkaintegration.errors.InvalidGroupIdException;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.google.common.collect.ImmutableList;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+
+import static com.google.common.base.Preconditions.checkNotNull;
 
 /**
  * Implementation of Event Subscription Manager.
  *
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = EventSubscriptionService.class)
 public class EventSubscriptionManager implements EventSubscriptionService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -67,13 +64,13 @@
 
     private static final String SUBSCRIBED_APPS = "event-subscriptions";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected KafkaConfigService kafkaConfigService;
 
     private ApplicationId appId;
diff --git a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/KafkaCodecRegistrator.java b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/KafkaCodecRegistrator.java
index 4af3f50..4ab9a0d 100644
--- a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/KafkaCodecRegistrator.java
+++ b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/KafkaCodecRegistrator.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.kafkaintegration.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.codec.CodecService;
 import org.onosproject.kafkaintegration.api.dto.EventSubscriber;
 import org.slf4j.Logger;
@@ -32,7 +32,7 @@
 public class KafkaCodecRegistrator {
     private static Logger log = LoggerFactory.getLogger(KafkaCodecRegistrator
                                                                 .class);
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CodecService codecService;
 
     @Activate
diff --git a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/KafkaStorageManager.java b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/KafkaStorageManager.java
index 19e58ca..138db2b 100644
--- a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/KafkaStorageManager.java
+++ b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/impl/KafkaStorageManager.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.kafkaintegration.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Service;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onosproject.kafkaintegration.api.KafkaEventStorageService;
 import org.onosproject.kafkaintegration.api.dto.OnosEvent;
 import org.onosproject.store.serializers.KryoNamespaces;
@@ -28,17 +22,21 @@
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.Task;
 import org.onosproject.store.service.WorkQueue;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
 
-@Component(immediate = false)
-@Service
+@Component(service = KafkaEventStorageService.class)
 public class KafkaStorageManager implements KafkaEventStorageService {
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private final Logger log = LoggerFactory.getLogger(getClass());
diff --git a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventListener.java b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventListener.java
index 1b53c2a..18baccb 100644
--- a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventListener.java
+++ b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventListener.java
@@ -16,13 +16,13 @@
 
 package org.onosproject.kafkaintegration.kafka;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.NodeId;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.cluster.LeadershipService;
 import org.onosproject.kafkaintegration.api.EventConversionService;
 import org.onosproject.kafkaintegration.api.EventSubscriptionService;
@@ -53,25 +53,25 @@
 public class EventListener {
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EventSubscriptionService eventSubscriptionService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EventConversionService eventConversionService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected KafkaEventStorageService kafkaStoreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
     private final DeviceListener deviceListener = new InternalDeviceListener();
diff --git a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventPublisher.java b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventPublisher.java
index a42e56a..86d1d72 100644
--- a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventPublisher.java
+++ b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/EventPublisher.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.kafkaintegration.kafka;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.apache.kafka.clients.producer.ProducerRecord;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.LeadershipService;
@@ -42,19 +42,19 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected KafkaConfigService kafkaConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected KafkaEventStorageService kafkaStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected KafkaPublisherService kafkaPublisher;
 
     protected ScheduledExecutorService exService;
diff --git a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/KafkaConfigManager.java b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/KafkaConfigManager.java
index 79d7baf..aed8ba8 100644
--- a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/KafkaConfigManager.java
+++ b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/KafkaConfigManager.java
@@ -15,37 +15,35 @@
  */
 package org.onosproject.kafkaintegration.kafka;
 
-import static com.google.common.base.Strings.isNullOrEmpty;
-import static org.onlab.util.Tools.get;
-
-import java.util.Dictionary;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.kafkaintegration.api.KafkaConfigService;
 import org.onosproject.kafkaintegration.api.KafkaPublisherAdminService;
 import org.onosproject.kafkaintegration.api.dto.KafkaServerConfig;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Property;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-@Component(immediate = true)
-@Service
+import java.util.Dictionary;
+
+import static com.google.common.base.Strings.isNullOrEmpty;
+import static org.onlab.util.Tools.get;
+
+@Component(immediate = true, service = KafkaConfigService.class)
 public class KafkaConfigManager implements KafkaConfigService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected KafkaPublisherAdminService kafkaPublisherAdminService;
 
     public static final String BOOTSTRAP_SERVERS = "localhost:9092";
diff --git a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/PublishManager.java b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/PublishManager.java
index b3064b1f..5110001 100644
--- a/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/PublishManager.java
+++ b/apps/kafka-integration/app/src/main/java/org/onosproject/kafkaintegration/kafka/PublishManager.java
@@ -16,27 +16,25 @@
 
 package org.onosproject.kafkaintegration.kafka;
 
-import java.util.Properties;
-import java.util.concurrent.Future;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Service;
 import org.apache.kafka.clients.producer.KafkaProducer;
 import org.apache.kafka.clients.producer.ProducerRecord;
 import org.apache.kafka.clients.producer.RecordMetadata;
-import org.onosproject.kafkaintegration.api.KafkaPublisherService;
 import org.onosproject.kafkaintegration.api.KafkaPublisherAdminService;
+import org.onosproject.kafkaintegration.api.KafkaPublisherService;
 import org.onosproject.kafkaintegration.api.dto.KafkaServerConfig;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.Properties;
+import java.util.concurrent.Future;
+
 /**
  * Implementation of a Kafka Producer.
  */
-@Component
-@Service
+@Component(service = { KafkaPublisherService.class, KafkaPublisherAdminService.class })
 public class PublishManager implements KafkaPublisherService, KafkaPublisherAdminService {
     private KafkaProducer<String, byte[]> kafkaProducer = null;
 
diff --git a/apps/l3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/DistributedNetL3VpnStore.java b/apps/l3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/DistributedNetL3VpnStore.java
index 28a90da..5178d5e 100644
--- a/apps/l3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/DistributedNetL3VpnStore.java
+++ b/apps/l3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/DistributedNetL3VpnStore.java
@@ -16,12 +16,6 @@
 package org.onosproject.l3vpn.netl3vpn.impl;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.l3vpn.netl3vpn.AccessInfo;
 import org.onosproject.l3vpn.netl3vpn.BgpInfo;
@@ -47,6 +41,11 @@
 import org.onosproject.yang.model.NodeKey;
 import org.onosproject.yang.model.ResourceId;
 import org.onosproject.yang.model.SchemaId;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Map;
@@ -59,8 +58,7 @@
  * Manages the pool of available VPN instances and its associated devices
  * and interface information.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = NetL3VpnStore.class)
 public class DistributedNetL3VpnStore implements NetL3VpnStore {
 
     private static final Serializer L3VPN_SERIALIZER = Serializer
@@ -95,7 +93,7 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     /**
diff --git a/apps/l3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/NetL3VpnManager.java b/apps/l3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/NetL3VpnManager.java
index b7d4ddd..7c1ccf8 100644
--- a/apps/l3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/NetL3VpnManager.java
+++ b/apps/l3vpn/src/main/java/org/onosproject/l3vpn/netl3vpn/impl/NetL3VpnManager.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.l3vpn.netl3vpn.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.util.AbstractAccumulator;
 import org.onlab.util.Accumulator;
 import org.onosproject.cluster.ClusterService;
@@ -154,31 +154,31 @@
     private final InternalLeadershipListener leadershipEventListener =
             new InternalLeadershipListener();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ModelConverter modelConverter;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DynamicConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetL3VpnStore l3VpnStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PceService pceService;
 
     protected IdGenerator l3VpnIdGen;
diff --git a/apps/layout/src/main/java/org/onosproject/layout/RoleBasedLayoutManager.java b/apps/layout/src/main/java/org/onosproject/layout/RoleBasedLayoutManager.java
index 932e626..ce01c98 100644
--- a/apps/layout/src/main/java/org/onosproject/layout/RoleBasedLayoutManager.java
+++ b/apps/layout/src/main/java/org/onosproject/layout/RoleBasedLayoutManager.java
@@ -17,12 +17,6 @@
 package org.onosproject.layout;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.net.config.NetworkConfigService;
 import org.onosproject.net.device.DeviceService;
 import org.onosproject.net.host.HostService;
@@ -34,6 +28,11 @@
 import org.onosproject.ui.UiTopoOverlayFactory;
 import org.onosproject.ui.UiView;
 import org.onosproject.ui.UiViewHidden;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -44,8 +43,7 @@
  * supported layout variants using roles assigned to network elements using
  * network configuration.
  */
-@Component(immediate = true)
-@Service(value = RoleBasedLayoutManager.class)
+@Component(immediate = true, service = RoleBasedLayoutManager.class)
 public class RoleBasedLayoutManager {
 
     private Logger log = LoggerFactory.getLogger(getClass());
@@ -74,19 +72,19 @@
                     .topoOverlayFactory(topoOverlayFactory)
                     .build();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService networkConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     @Activate
diff --git a/apps/learning-switch/src/main/java/org/onosproject/learningswitch/LearningSwitchSolution.java b/apps/learning-switch/src/main/java/org/onosproject/learningswitch/LearningSwitchSolution.java
index 621d16d..8dd07fd 100644
--- a/apps/learning-switch/src/main/java/org/onosproject/learningswitch/LearningSwitchSolution.java
+++ b/apps/learning-switch/src/main/java/org/onosproject/learningswitch/LearningSwitchSolution.java
@@ -16,11 +16,11 @@
 package org.onosproject.learningswitch;
 
 import com.google.common.collect.Maps;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.MacAddress;
 import org.onosproject.core.ApplicationId;
@@ -52,13 +52,13 @@
 public class LearningSwitchSolution {
 
     // Instantiates the relevant services.
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     private final Logger log = LoggerFactory.getLogger(getClass());
diff --git a/apps/learning-switch/src/main/java/org/onosproject/learningswitch/LearningSwitchTutorial.java b/apps/learning-switch/src/main/java/org/onosproject/learningswitch/LearningSwitchTutorial.java
index 3a9c8b7..1cfd876 100644
--- a/apps/learning-switch/src/main/java/org/onosproject/learningswitch/LearningSwitchTutorial.java
+++ b/apps/learning-switch/src/main/java/org/onosproject/learningswitch/LearningSwitchTutorial.java
@@ -16,11 +16,11 @@
 package org.onosproject.learningswitch;
 
 import com.google.common.collect.Maps;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.MacAddress;
 import org.onosproject.core.ApplicationId;
@@ -48,13 +48,13 @@
 public class LearningSwitchTutorial {
     // Instantiates the relevant services.
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     private final Logger log = LoggerFactory.getLogger(getClass());
diff --git a/apps/linkprops/src/main/java/org/onosproject/linkprops/LinkPropApp.java b/apps/linkprops/src/main/java/org/onosproject/linkprops/LinkPropApp.java
index e3c577c..3e0cd89 100644
--- a/apps/linkprops/src/main/java/org/onosproject/linkprops/LinkPropApp.java
+++ b/apps/linkprops/src/main/java/org/onosproject/linkprops/LinkPropApp.java
@@ -16,11 +16,11 @@
 package org.onosproject.linkprops;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -43,7 +43,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // List of application views
diff --git a/apps/mappingmanagement/api/src/main/java/org/onosproject/mapping/MappingCodecRegistrator.java b/apps/mappingmanagement/api/src/main/java/org/onosproject/mapping/MappingCodecRegistrator.java
index 1bd5f96..83f9e09 100644
--- a/apps/mappingmanagement/api/src/main/java/org/onosproject/mapping/MappingCodecRegistrator.java
+++ b/apps/mappingmanagement/api/src/main/java/org/onosproject/mapping/MappingCodecRegistrator.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.mapping;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.codec.CodecService;
 import org.onosproject.mapping.actions.MappingAction;
 import org.onosproject.mapping.addresses.MappingAddress;
@@ -43,7 +43,7 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public CodecService codecService;
 
     @Activate
diff --git a/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/DistributedMappingStore.java b/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/DistributedMappingStore.java
index 4fca6e0..45944d9 100644
--- a/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/DistributedMappingStore.java
+++ b/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/DistributedMappingStore.java
@@ -18,12 +18,6 @@
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Maps;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.mapping.DefaultMapping;
 import org.onosproject.mapping.DefaultMappingEntry;
 import org.onosproject.mapping.Mapping;
@@ -47,6 +41,11 @@
 import org.onosproject.store.service.MapEventListener;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Map;
@@ -58,8 +57,7 @@
 /**
  * Implementation of a distributed store for managing mapping information.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = MappingStore.class)
 public class DistributedMappingStore
         extends AbstractStore<MappingEvent, MappingStoreDelegate>
         implements MappingStore {
@@ -72,10 +70,10 @@
     private Map<MappingId, Mapping> databaseMap;
     private Map<MappingId, Mapping> cacheMap;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
     private final MapEventListener<MappingId, Mapping> listener = new InternalListener();
diff --git a/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/MappingManager.java b/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/MappingManager.java
index 0bbca3b..85b4c1d 100644
--- a/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/MappingManager.java
+++ b/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/MappingManager.java
@@ -19,12 +19,6 @@
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.mapping.MappingAdminService;
 import org.onosproject.mapping.MappingEntry;
@@ -44,6 +38,11 @@
 import org.onosproject.net.device.DeviceService;
 import org.onosproject.net.provider.AbstractListenerProviderRegistry;
 import org.onosproject.net.provider.AbstractProviderService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.List;
@@ -54,8 +53,7 @@
 /**
  * Implementation of mapping management service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = { MappingService.class, MappingAdminService.class, MappingProviderRegistry.class })
 public class MappingManager
         extends AbstractListenerProviderRegistry<MappingEvent, MappingListener,
                                                  MappingProvider, MappingProviderService>
@@ -66,10 +64,10 @@
     private static final String MAPPING_OP_TOPIC = "mapping-ops-ids";
     private final MappingStoreDelegate delegate = new InternalStoreDelegate();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MappingStore store;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
     @Activate
diff --git a/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/SimpleMappingStore.java b/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/SimpleMappingStore.java
index bdb898e..eed42ee 100644
--- a/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/SimpleMappingStore.java
+++ b/apps/mappingmanagement/mgr/src/main/java/org/onosproject/mapping/impl/SimpleMappingStore.java
@@ -18,11 +18,6 @@
 import com.google.common.collect.FluentIterable;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.mapping.DefaultMappingEntry;
 import org.onosproject.mapping.Mapping;
 import org.onosproject.mapping.MappingEntry;
@@ -35,6 +30,10 @@
 import org.onosproject.net.DeviceId;
 import org.onosproject.store.AbstractStore;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
 import org.slf4j.Logger;
 
 import java.util.Collections;
@@ -52,8 +51,7 @@
 /**
  * Manages inventory of mappings using trivial in-memory implementation.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = MappingStore.class)
 public class SimpleMappingStore
         extends AbstractStore<MappingEvent, MappingStoreDelegate>
         implements MappingStore {
diff --git a/apps/mappingmanagement/web/src/main/java/org/onosproject/mapping/web/gui/MappingsTopoUI.java b/apps/mappingmanagement/web/src/main/java/org/onosproject/mapping/web/gui/MappingsTopoUI.java
index 9de9277..eec5506 100644
--- a/apps/mappingmanagement/web/src/main/java/org/onosproject/mapping/web/gui/MappingsTopoUI.java
+++ b/apps/mappingmanagement/web/src/main/java/org/onosproject/mapping/web/gui/MappingsTopoUI.java
@@ -16,11 +16,11 @@
 package org.onosproject.mapping.web.gui;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -44,7 +44,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // Factory for UI message handlers
diff --git a/apps/mappingmanagement/web/src/main/java/org/onosproject/mapping/web/gui/MappingsUI.java b/apps/mappingmanagement/web/src/main/java/org/onosproject/mapping/web/gui/MappingsUI.java
index 9f87004..2b05988 100644
--- a/apps/mappingmanagement/web/src/main/java/org/onosproject/mapping/web/gui/MappingsUI.java
+++ b/apps/mappingmanagement/web/src/main/java/org/onosproject/mapping/web/gui/MappingsUI.java
@@ -16,17 +16,16 @@
 package org.onosproject.mapping.web.gui;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
 import org.onosproject.ui.UiView;
 import org.onosproject.ui.UiViewHidden;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -35,8 +34,7 @@
 /**
  * Mechanism to stream data to the GUI.
  */
-@Component(immediate = true, enabled = true)
-@Service(value = MappingsUI.class)
+@Component(immediate = true, service = MappingsUI.class)
 public class MappingsUI {
     private static final String MAPPING_ID = "mapping";
     private static final String RES_PATH = "gui";
@@ -44,7 +42,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // Factory for UI message handlers
diff --git a/apps/mcast/impl/src/main/java/org/onosproject/mcast/impl/DistributedMcastRoutesStore.java b/apps/mcast/impl/src/main/java/org/onosproject/mcast/impl/DistributedMcastRoutesStore.java
index c9baac3..e3526c4 100644
--- a/apps/mcast/impl/src/main/java/org/onosproject/mcast/impl/DistributedMcastRoutesStore.java
+++ b/apps/mcast/impl/src/main/java/org/onosproject/mcast/impl/DistributedMcastRoutesStore.java
@@ -17,12 +17,6 @@
 
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.mcast.api.McastEvent;
 import org.onosproject.mcast.api.McastRoute;
@@ -39,6 +33,11 @@
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.Versioned;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -56,8 +55,7 @@
  * New distributed mcast route store implementation. Routes are stored consistently
  * across the cluster.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = McastStore.class)
 public class DistributedMcastRoutesStore
         extends AbstractStore<McastEvent, McastStoreDelegate>
         implements McastStore {
@@ -65,7 +63,7 @@
     private static final String MCASTRIB = "onos-mcast-route-table";
     private Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private Map<McastRoute, McastRouteData> mcastRoutes;
diff --git a/apps/mcast/impl/src/main/java/org/onosproject/mcast/impl/MulticastRouteManager.java b/apps/mcast/impl/src/main/java/org/onosproject/mcast/impl/MulticastRouteManager.java
index bc848d1..a004c8d 100644
--- a/apps/mcast/impl/src/main/java/org/onosproject/mcast/impl/MulticastRouteManager.java
+++ b/apps/mcast/impl/src/main/java/org/onosproject/mcast/impl/MulticastRouteManager.java
@@ -18,12 +18,6 @@
 import com.google.common.base.Objects;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onosproject.event.AbstractListenerManager;
 import org.onosproject.mcast.api.McastEvent;
@@ -40,6 +34,11 @@
 import org.onosproject.net.host.HostEvent;
 import org.onosproject.net.host.HostListener;
 import org.onosproject.net.host.HostService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.HashSet;
@@ -56,8 +55,7 @@
 /**
  * An implementation of a multicast route table.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = MulticastRouteService.class)
 public class MulticastRouteManager
         extends AbstractListenerManager<McastEvent, McastListener>
         implements MulticastRouteService {
@@ -67,10 +65,10 @@
 
     private final McastStoreDelegate delegate = new InternalMcastStoreDelegate();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected McastStore store;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
     private HostListener hostListener = new InternalHostListener();
diff --git a/apps/mcast/web/src/main/java/org/onosproject/mcast/web/McastServiceCodecRegistrator.java b/apps/mcast/web/src/main/java/org/onosproject/mcast/web/McastServiceCodecRegistrator.java
index 90ba170..ab0c990 100644
--- a/apps/mcast/web/src/main/java/org/onosproject/mcast/web/McastServiceCodecRegistrator.java
+++ b/apps/mcast/web/src/main/java/org/onosproject/mcast/web/McastServiceCodecRegistrator.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.mcast.web;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.codec.CodecService;
 import org.onosproject.mcast.api.McastRoute;
 import org.slf4j.Logger;
@@ -34,7 +34,7 @@
 
     private static Logger log = LoggerFactory.getLogger(McastServiceCodecRegistrator.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CodecService codecService;
 
     @Activate
diff --git a/apps/metrics/src/main/java/org/onosproject/metrics/intent/IntentMetrics.java b/apps/metrics/src/main/java/org/onosproject/metrics/intent/IntentMetrics.java
index b1d9188..8fa618a 100644
--- a/apps/metrics/src/main/java/org/onosproject/metrics/intent/IntentMetrics.java
+++ b/apps/metrics/src/main/java/org/onosproject/metrics/intent/IntentMetrics.java
@@ -15,18 +15,7 @@
  */
 package org.onosproject.metrics.intent;
 
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.LinkedList;
-import java.util.List;
-
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.metrics.EventMetric;
 import org.onlab.metrics.MetricsService;
 import org.onosproject.core.ApplicationId;
@@ -34,24 +23,33 @@
 import org.onosproject.net.intent.IntentEvent;
 import org.onosproject.net.intent.IntentListener;
 import org.onosproject.net.intent.IntentService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
+import java.util.LinkedList;
+import java.util.List;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
 /**
  * ONOS Intent Metrics Application that collects intent-related metrics.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = { IntentMetricsService.class, IntentListener.class })
 public class IntentMetrics implements IntentMetricsService,
                                       IntentListener {
     private static final Logger log = getLogger(IntentMetrics.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MetricsService metricsService;
 
     private ApplicationId appId;
diff --git a/apps/metrics/src/main/java/org/onosproject/metrics/topology/TopologyMetrics.java b/apps/metrics/src/main/java/org/onosproject/metrics/topology/TopologyMetrics.java
index 1850ed8..77d8d5e 100644
--- a/apps/metrics/src/main/java/org/onosproject/metrics/topology/TopologyMetrics.java
+++ b/apps/metrics/src/main/java/org/onosproject/metrics/topology/TopologyMetrics.java
@@ -15,18 +15,7 @@
  */
 package org.onosproject.metrics.topology;
 
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.LinkedList;
-import java.util.List;
-
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.metrics.EventMetric;
 import org.onlab.metrics.MetricsService;
 import org.onosproject.core.ApplicationId;
@@ -44,32 +33,41 @@
 import org.onosproject.net.topology.TopologyEvent;
 import org.onosproject.net.topology.TopologyListener;
 import org.onosproject.net.topology.TopologyService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
+import java.util.LinkedList;
+import java.util.List;
+
+import static org.slf4j.LoggerFactory.getLogger;
+
 /**
  * ONOS Topology Metrics Application that collects topology-related metrics.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = TopologyMetricsService.class)
 public class TopologyMetrics implements TopologyMetricsService {
     private static final Logger log = getLogger(TopologyMetrics.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MetricsService metricsService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TopologyService topologyService;
 
     private ApplicationId appId;
diff --git a/apps/mfwd/src/main/java/org/onosproject/mfwd/impl/McastForwarding.java b/apps/mfwd/src/main/java/org/onosproject/mfwd/impl/McastForwarding.java
index 811c05d..d61a5e6 100644
--- a/apps/mfwd/src/main/java/org/onosproject/mfwd/impl/McastForwarding.java
+++ b/apps/mfwd/src/main/java/org/onosproject/mfwd/impl/McastForwarding.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.mfwd.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IPv4;
 import org.onlab.packet.Ip4Address;
@@ -68,16 +68,16 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MulticastRouteService mcastRouteManager;
 
     protected McastIntentManager mcastIntentManager;
diff --git a/apps/mlb/src/main/java/org/onosproject/mlb/MastershipLoadBalancer.java b/apps/mlb/src/main/java/org/onosproject/mlb/MastershipLoadBalancer.java
index 3bd3cef..ca6cd59 100644
--- a/apps/mlb/src/main/java/org/onosproject/mlb/MastershipLoadBalancer.java
+++ b/apps/mlb/src/main/java/org/onosproject/mlb/MastershipLoadBalancer.java
@@ -16,13 +16,6 @@
 
 package org.onosproject.mlb;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.cluster.ClusterService;
@@ -34,10 +27,16 @@
 import org.onosproject.mastership.MastershipEvent;
 import org.onosproject.mastership.MastershipListener;
 import org.onosproject.mastership.MastershipService;
-import org.osgi.service.component.ComponentContext;
 import org.onosproject.net.region.RegionEvent;
 import org.onosproject.net.region.RegionListener;
 import org.onosproject.net.region.RegionService;
+import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Dictionary;
@@ -63,8 +62,8 @@
     private final Logger log = getLogger(getClass());
 
     private static final int DEFAULT_SCHEDULE_PERIOD = 30;
-    @Property(name = "schedulePeriod", intValue = DEFAULT_SCHEDULE_PERIOD,
-            label = "Period to schedule balancing the mastership to be shared as evenly as by all online instances.")
+    //@Property(name = "schedulePeriod", intValue = DEFAULT_SCHEDULE_PERIOD,
+    //        label = "Period to schedule balancing the mastership to be shared as evenly as by all online instances.")
     private int schedulePeriod = DEFAULT_SCHEDULE_PERIOD;
 
     private static final String REBALANCE_MASTERSHIP = "rebalance/mastership";
@@ -75,22 +74,22 @@
 
     private AtomicReference<Future> nextTask = new AtomicReference<>();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipAdminService mastershipAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RegionService regionService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
     private InnerLeadershipListener leadershipListener = new InnerLeadershipListener();
diff --git a/apps/mobility/src/main/java/org/onosproject/mobility/HostMobility.java b/apps/mobility/src/main/java/org/onosproject/mobility/HostMobility.java
index 5c7343b..79da063 100644
--- a/apps/mobility/src/main/java/org/onosproject/mobility/HostMobility.java
+++ b/apps/mobility/src/main/java/org/onosproject/mobility/HostMobility.java
@@ -22,11 +22,11 @@
 import java.util.List;
 import java.util.concurrent.ExecutorService;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.net.Device;
@@ -54,16 +54,16 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     private ApplicationId appId;
diff --git a/apps/netconf/client/src/main/java/org/onosproject/netconf/client/impl/NetconfActiveComponent.java b/apps/netconf/client/src/main/java/org/onosproject/netconf/client/impl/NetconfActiveComponent.java
index 33b52a4..7bf380c 100644
--- a/apps/netconf/client/src/main/java/org/onosproject/netconf/client/impl/NetconfActiveComponent.java
+++ b/apps/netconf/client/src/main/java/org/onosproject/netconf/client/impl/NetconfActiveComponent.java
@@ -17,11 +17,11 @@
 package org.onosproject.netconf.client.impl;
 
 import com.google.common.annotations.Beta;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.config.DynamicConfigEvent;
 import org.onosproject.config.DynamicConfigListener;
 import org.onosproject.config.DynamicConfigService;
@@ -63,16 +63,16 @@
 public class NetconfActiveComponent implements DynamicConfigListener {
 
     private static final Logger log = LoggerFactory.getLogger(NetconfActiveComponent.class);
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DynamicConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetconfTranslator netconfTranslator;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetconfController controller;
 
     private final Accumulator<DynamicConfigEvent> accumulator = new InternalEventAccummulator();
diff --git a/apps/netconf/client/src/main/java/org/onosproject/netconf/client/impl/NetconfTranslatorImpl.java b/apps/netconf/client/src/main/java/org/onosproject/netconf/client/impl/NetconfTranslatorImpl.java
index f663fd0..84ae19b 100644
--- a/apps/netconf/client/src/main/java/org/onosproject/netconf/client/impl/NetconfTranslatorImpl.java
+++ b/apps/netconf/client/src/main/java/org/onosproject/netconf/client/impl/NetconfTranslatorImpl.java
@@ -17,12 +17,6 @@
 package org.onosproject.netconf.client.impl;
 
 import com.google.common.annotations.Beta;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cluster.NodeId;
 import org.onosproject.net.DeviceId;
 import org.onosproject.netconf.NetconfController;
@@ -31,6 +25,7 @@
 import org.onosproject.netconf.NetconfSession;
 import org.onosproject.netconf.client.NetconfTranslator;
 import org.onosproject.yang.model.DataNode;
+import org.onosproject.yang.model.DefaultResourceData;
 import org.onosproject.yang.model.InnerNode;
 import org.onosproject.yang.model.KeyLeaf;
 import org.onosproject.yang.model.LeafListKey;
@@ -47,13 +42,17 @@
 import org.onosproject.yang.runtime.DefaultAnnotation;
 import org.onosproject.yang.runtime.DefaultCompositeData;
 import org.onosproject.yang.runtime.DefaultCompositeStream;
-import org.onosproject.yang.model.DefaultResourceData;
 import org.onosproject.yang.runtime.DefaultRuntimeContext;
 import org.onosproject.yang.runtime.DefaultYangSerializerContext;
+import org.onosproject.yang.runtime.SerializerHelper;
 import org.onosproject.yang.runtime.YangRuntimeService;
 import org.onosproject.yang.runtime.YangSerializerContext;
-import org.onosproject.yang.runtime.SerializerHelper;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -89,8 +88,7 @@
  * will be no session available.
  */
 @Beta
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = NetconfTranslator.class)
 public class NetconfTranslatorImpl implements NetconfTranslator {
 
     private static final Logger log = LoggerFactory
@@ -120,13 +118,13 @@
     private static final String XMLNS_XC_SPECIFIER = "xmlns:xc";
     private static final String XMLNS_SPECIFIER = "xmlns";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetconfController netconfController;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected YangRuntimeService yangRuntimeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SchemaContextProvider schemaContextProvider;
 
     @Activate
diff --git a/apps/network-troubleshoot/core/src/main/java/org/onosproject/fnl/impl/NetworkDiagnosticManager.java b/apps/network-troubleshoot/core/src/main/java/org/onosproject/fnl/impl/NetworkDiagnosticManager.java
index db004e9..3a9635c 100644
--- a/apps/network-troubleshoot/core/src/main/java/org/onosproject/fnl/impl/NetworkDiagnosticManager.java
+++ b/apps/network-troubleshoot/core/src/main/java/org/onosproject/fnl/impl/NetworkDiagnosticManager.java
@@ -15,27 +15,25 @@
  */
 package org.onosproject.fnl.impl;
 
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Deactivate;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
 import org.onosproject.fnl.intf.NetworkAnomaly;
 import org.onosproject.fnl.intf.NetworkDiagnostic;
 import org.onosproject.fnl.intf.NetworkDiagnostic.Type;
 import org.onosproject.fnl.intf.NetworkDiagnosticService;
-import org.onosproject.core.ApplicationId;
-import org.onosproject.core.CoreService;
 import org.onosproject.net.device.DeviceService;
 import org.onosproject.net.flow.FlowRuleService;
 import org.onosproject.net.host.HostService;
 import org.onosproject.net.link.LinkService;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -52,8 +50,7 @@
  *
  * It is simply modularized at present.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = NetworkDiagnosticService.class)
 public class NetworkDiagnosticManager implements NetworkDiagnosticService {
 
     /**
@@ -67,30 +64,30 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
 
     // ------ service below is for auto register ------
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService ds;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hs;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService frs;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService ls;
 
 
-    @Property(name = PROPERTY_AUTO_REGISTER_DIAG, boolValue = true,
-            label = "Automatically register all of default diagnostic modules.")
+    //@Property(name = PROPERTY_AUTO_REGISTER_DIAG, boolValue = true,
+    //        label = "Automatically register all of default diagnostic modules.")
     private boolean autoRegister = true;
 
 
diff --git a/apps/newoptical/src/main/java/org/onosproject/newoptical/OpticalPathProvisioner.java b/apps/newoptical/src/main/java/org/onosproject/newoptical/OpticalPathProvisioner.java
index e907cf5..19edcbc 100644
--- a/apps/newoptical/src/main/java/org/onosproject/newoptical/OpticalPathProvisioner.java
+++ b/apps/newoptical/src/main/java/org/onosproject/newoptical/OpticalPathProvisioner.java
@@ -18,14 +18,12 @@
 import com.google.common.annotations.Beta;
 import com.google.common.collect.ImmutableList;
 import org.apache.commons.lang3.tuple.Pair;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.graph.DefaultEdgeWeigher;
 import org.onlab.graph.ScalarWeight;
 import org.onlab.graph.Weight;
@@ -114,8 +112,7 @@
  * Main component to configure optical connectivity.
  */
 @Beta
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = OpticalPathService.class)
 public class OpticalPathProvisioner
         extends AbstractListenerManager<OpticalPathEvent, OpticalPathListener>
         implements OpticalPathService {
@@ -132,40 +129,40 @@
     private static final String CONNECTIVITY_MAP_NAME = "newoptical-connectivity";
     private static final String CROSSCONNECTLINK_SET_NAME = "newoptical-crossconnectlink";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TopologyService topologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService networkConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ResourceService resourceService;
 
     private static final String MAX_PATHS = "maxPaths";
     private static final int DEFAULT_MAX_PATHS = 10;
-    @Property(name = MAX_PATHS, intValue = DEFAULT_MAX_PATHS,
-            label = "Maximum number of paths to consider for path provisioning")
+    //@Property(name = MAX_PATHS, intValue = DEFAULT_MAX_PATHS,
+    //        label = "Maximum number of paths to consider for path provisioning")
     private int maxPaths = DEFAULT_MAX_PATHS;
 
     private ApplicationId appId;
diff --git a/apps/nodemetrics/mgr/src/main/java/org/onosproject/nodemetrics/impl/NodeMetricsManager.java b/apps/nodemetrics/mgr/src/main/java/org/onosproject/nodemetrics/impl/NodeMetricsManager.java
index 812ebb7..7ae4cec 100644
--- a/apps/nodemetrics/mgr/src/main/java/org/onosproject/nodemetrics/impl/NodeMetricsManager.java
+++ b/apps/nodemetrics/mgr/src/main/java/org/onosproject/nodemetrics/impl/NodeMetricsManager.java
@@ -15,16 +15,6 @@
  */
 package org.onosproject.nodemetrics.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-import org.osgi.service.component.ComponentContext;
-import org.onosproject.cfg.ComponentConfigService;
 import org.hyperic.sigar.CpuPerc;
 import org.hyperic.sigar.FileSystemUsage;
 import org.hyperic.sigar.Mem;
@@ -32,6 +22,7 @@
 import org.hyperic.sigar.SigarException;
 import org.onlab.util.KryoNamespace;
 import org.onlab.util.Tools;
+import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.NodeId;
 import org.onosproject.core.ApplicationId;
@@ -45,9 +36,17 @@
 import org.onosproject.store.service.EventuallyConsistentMap;
 import org.onosproject.store.service.LogicalClockService;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.Dictionary;
 import java.util.Map;
 import java.util.Objects;
 import java.util.concurrent.Executors;
@@ -55,12 +54,11 @@
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.TimeUnit;
 import java.util.stream.Collectors;
-import java.util.Dictionary;
+
 import static org.onlab.util.Tools.getIntegerProperty;
 
 
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = NodeMetricsService.class)
 public class NodeMetricsManager implements NodeMetricsService {
     private static final int DEFAULT_POLL_FREQUENCY_SECONDS = 15;
     private static final String SLASH = "/";
@@ -68,19 +66,19 @@
     private final Logger log = LoggerFactory
             .getLogger(this.getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LogicalClockService clockService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
     private ScheduledExecutorService metricsExecutor;
@@ -95,8 +93,8 @@
 
     private Sigar sigar;
 
-    @Property(name = "metricPollFrequencySeconds", intValue = DEFAULT_POLL_FREQUENCY_SECONDS,
-            label = "Frequency (in seconds) for polling controller metrics")
+    //@Property(name = "metricPollFrequencySeconds", intValue = DEFAULT_POLL_FREQUENCY_SECONDS,
+    //        label = "Frequency (in seconds) for polling controller metrics")
     protected int metricPollFrequencySeconds = DEFAULT_POLL_FREQUENCY_SECONDS;
 
     @Activate
diff --git a/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/YangToolUtil.java b/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/YangToolUtil.java
index b0d56cb..608209e 100644
--- a/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/YangToolUtil.java
+++ b/apps/odtn/api/src/main/java/org/onosproject/odtn/utils/YangToolUtil.java
@@ -32,11 +32,11 @@
 import javax.xml.transform.dom.DOMSource;
 import javax.xml.transform.stream.StreamResult;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.osgi.DefaultServiceDirectory;
 import org.onosproject.yang.model.DataNode;
 import org.onosproject.yang.model.DefaultModelObjectData;
@@ -71,11 +71,11 @@
 public class YangToolUtil {
     private static final Logger log = getLogger(YangToolUtil.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected YangRuntimeService yangRuntimeService;
     protected static YangRuntimeService yrs;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ModelConverter modelConverter;
     protected static ModelConverter converter;
 
diff --git a/apps/odtn/service/src/main/java/org/onosproject/odtn/impl/ServiceApplicationComponent.java b/apps/odtn/service/src/main/java/org/onosproject/odtn/impl/ServiceApplicationComponent.java
index ff813e5..a77b5a3 100644
--- a/apps/odtn/service/src/main/java/org/onosproject/odtn/impl/ServiceApplicationComponent.java
+++ b/apps/odtn/service/src/main/java/org/onosproject/odtn/impl/ServiceApplicationComponent.java
@@ -20,11 +20,11 @@
 
 package org.onosproject.odtn.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.Link;
@@ -71,28 +71,28 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DynamicConfigService dynConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService netcfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry netcfgRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RpcRegistry rpcRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TapiTopologyManager tapiTopologyManager;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TapiResolver resolver;
 
     // Listener for events from the DCS
diff --git a/apps/odtn/service/src/main/java/org/onosproject/odtn/internal/DcsBasedTapiTopologyManager.java b/apps/odtn/service/src/main/java/org/onosproject/odtn/internal/DcsBasedTapiTopologyManager.java
index 659e984..585e282 100644
--- a/apps/odtn/service/src/main/java/org/onosproject/odtn/internal/DcsBasedTapiTopologyManager.java
+++ b/apps/odtn/service/src/main/java/org/onosproject/odtn/internal/DcsBasedTapiTopologyManager.java
@@ -16,35 +16,32 @@
 
 package org.onosproject.odtn.internal;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.config.DynamicConfigService;
-
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Device;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.Link;
 import org.onosproject.net.Port;
-
 import org.onosproject.odtn.TapiResolver;
 import org.onosproject.odtn.TapiTopologyManager;
-import org.onosproject.odtn.utils.tapi.TapiLinkHandler;
 import org.onosproject.odtn.utils.tapi.TapiCepHandler;
-import org.onosproject.odtn.utils.tapi.TapiNepRef;
-import org.onosproject.odtn.utils.tapi.TapiNodeRef;
 import org.onosproject.odtn.utils.tapi.TapiContextHandler;
+import org.onosproject.odtn.utils.tapi.TapiLinkHandler;
 import org.onosproject.odtn.utils.tapi.TapiNepHandler;
+import org.onosproject.odtn.utils.tapi.TapiNepRef;
 import org.onosproject.odtn.utils.tapi.TapiNodeHandler;
+import org.onosproject.odtn.utils.tapi.TapiNodeRef;
 import org.onosproject.odtn.utils.tapi.TapiSipHandler;
 import org.onosproject.odtn.utils.tapi.TapiTopologyHandler;
 import org.onosproject.yang.gen.v1.tapicommon.rev20180307.tapicommon.DefaultContext;
 import org.onosproject.yang.gen.v1.tapicommon.rev20180307.tapicommon.Uuid;
 import org.onosproject.yang.gen.v1.tapitopology.rev20180307.tapitopology.topologycontext.DefaultTopology;
 import org.onosproject.yang.model.ModelConverter;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import static org.slf4j.LoggerFactory.getLogger;
@@ -52,19 +49,18 @@
 /**
  * OSGi Component for ODTN TAPI topology manager application.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = TapiTopologyManager.class)
 public class DcsBasedTapiTopologyManager implements TapiTopologyManager {
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DynamicConfigService dcs;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ModelConverter modelConverter;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TapiResolver tapiResolver;
 
     private DefaultContext context;
diff --git a/apps/odtn/service/src/main/java/org/onosproject/odtn/internal/DefaultTapiResolver.java b/apps/odtn/service/src/main/java/org/onosproject/odtn/internal/DefaultTapiResolver.java
index f309d6d..81098b4 100644
--- a/apps/odtn/service/src/main/java/org/onosproject/odtn/internal/DefaultTapiResolver.java
+++ b/apps/odtn/service/src/main/java/org/onosproject/odtn/internal/DefaultTapiResolver.java
@@ -16,6 +16,16 @@
 
 package org.onosproject.odtn.internal;
 
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.ElementId;
+import org.onosproject.odtn.TapiResolver;
+import org.onosproject.odtn.utils.tapi.TapiNepRef;
+import org.onosproject.odtn.utils.tapi.TapiNodeRef;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.slf4j.Logger;
+
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
@@ -23,24 +33,13 @@
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Service;
-import org.onosproject.net.ConnectPoint;
-import org.onosproject.net.ElementId;
-import org.onosproject.odtn.TapiResolver;
-import org.onosproject.odtn.utils.tapi.TapiNepRef;
-import org.onosproject.odtn.utils.tapi.TapiNodeRef;
-import org.slf4j.Logger;
 
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * OSGi Component for ODTN TAPI resolver application.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = TapiResolver.class)
 public class DefaultTapiResolver implements TapiResolver {
 
     private final Logger log = getLogger(getClass());
diff --git a/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/DistributedOFAgentStore.java b/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/DistributedOFAgentStore.java
index 7e41243..4dd6a2a 100644
--- a/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/DistributedOFAgentStore.java
+++ b/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/DistributedOFAgentStore.java
@@ -16,12 +16,6 @@
 package org.onosproject.ofagent.impl;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -41,6 +35,11 @@
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.Versioned;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Set;
@@ -51,15 +50,17 @@
 import static java.util.concurrent.Executors.newSingleThreadExecutor;
 import static org.onlab.util.Tools.groupedThreads;
 import static org.onosproject.ofagent.api.OFAgent.State.STARTED;
-import static org.onosproject.ofagent.api.OFAgentEvent.Type.*;
+import static org.onosproject.ofagent.api.OFAgentEvent.Type.OFAGENT_CONTROLLER_ADDED;
+import static org.onosproject.ofagent.api.OFAgentEvent.Type.OFAGENT_CONTROLLER_REMOVED;
+import static org.onosproject.ofagent.api.OFAgentEvent.Type.OFAGENT_STARTED;
+import static org.onosproject.ofagent.api.OFAgentEvent.Type.OFAGENT_STOPPED;
 import static org.onosproject.ofagent.api.OFAgentService.APPLICATION_NAME;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Implementation of the {@link OFAgentStore} with consistent map.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = OFAgentStore.class)
 public class DistributedOFAgentStore extends AbstractStore<OFAgentEvent, OFAgentStoreDelegate>
         implements OFAgentStore {
 
@@ -79,10 +80,10 @@
             .register(DefaultOFController.class)
             .build();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/OFAgentManager.java b/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/OFAgentManager.java
index e26841b..b5f6b43 100644
--- a/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/OFAgentManager.java
+++ b/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/OFAgentManager.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.ofagent.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.LeadershipEvent;
 import org.onosproject.cluster.LeadershipEventListener;
@@ -40,6 +34,11 @@
 import org.onosproject.ofagent.api.OFAgentService;
 import org.onosproject.ofagent.api.OFAgentStore;
 import org.onosproject.ofagent.api.OFAgentStoreDelegate;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -56,8 +55,7 @@
 /**
  * Implementation of OpenFlow agent service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = { OFAgentService.class, OFAgentAdminService.class })
 public class OFAgentManager extends ListenerRegistry<OFAgentEvent, OFAgentListener>
         implements OFAgentService, OFAgentAdminService {
 
@@ -77,19 +75,19 @@
     private static final String ERR_NOT_EXIST = "does not exist";
     private static final String ERR_IN_USE = "is in start state, stop the agent first";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VirtualNetworkService virtualNetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OFAgentStore ofAgentStore;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/OFSwitchManager.java b/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/OFSwitchManager.java
index aa9900d..dba63e2 100644
--- a/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/OFSwitchManager.java
+++ b/apps/ofagent/src/main/java/org/onosproject/ofagent/impl/OFSwitchManager.java
@@ -19,12 +19,6 @@
 import com.google.common.collect.Lists;
 import io.netty.channel.ChannelOutboundInvoker;
 import io.netty.channel.nio.NioEventLoopGroup;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.LeadershipService;
 import org.onosproject.cluster.NodeId;
@@ -64,6 +58,11 @@
 import org.onosproject.ofagent.api.OFSwitch;
 import org.onosproject.ofagent.api.OFSwitchCapabilities;
 import org.onosproject.ofagent.api.OFSwitchService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.projectfloodlight.openflow.types.DatapathId;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -87,8 +86,7 @@
 /**
  * Manages OF switches.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = OFSwitchService.class)
 public class OFSwitchManager implements OFSwitchService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -104,19 +102,19 @@
             .portBlocked()
             .build();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VirtualNetworkService virtualNetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OFAgentService ofAgentService;
 
     private final ConcurrentHashMap<DeviceId, OFSwitch> ofSwitchMap = new ConcurrentHashMap<>();
diff --git a/apps/openroadm/network/src/main/java/org/onosproject/openroadm/network/OpenRoadmNetworkModelRegistrator.java b/apps/openroadm/network/src/main/java/org/onosproject/openroadm/network/OpenRoadmNetworkModelRegistrator.java
index 3854cef..0ff0d3d 100644
--- a/apps/openroadm/network/src/main/java/org/onosproject/openroadm/network/OpenRoadmNetworkModelRegistrator.java
+++ b/apps/openroadm/network/src/main/java/org/onosproject/openroadm/network/OpenRoadmNetworkModelRegistrator.java
@@ -16,7 +16,7 @@
 package org.onosproject.openroadm.network;
 
 import com.google.common.collect.ImmutableMap;
-import org.apache.felix.scr.annotations.Component;
+import org.osgi.service.component.annotations.Component;
 import org.onosproject.yang.AbstractYangModelRegistrator;
 import org.onosproject.yang.gen.v1.ietfinettypes.rev20130715.IetfInetTypes;
 import org.onosproject.yang.gen.v1.orgopenroadmcommontypes.rev20161014.OrgOpenroadmCommonTypes;
diff --git a/apps/openroadm/service/src/main/java/org/onosproject/openroadm/service/OpenRoadmServiceModelRegistrator.java b/apps/openroadm/service/src/main/java/org/onosproject/openroadm/service/OpenRoadmServiceModelRegistrator.java
index daf4de6..1908a41 100644
--- a/apps/openroadm/service/src/main/java/org/onosproject/openroadm/service/OpenRoadmServiceModelRegistrator.java
+++ b/apps/openroadm/service/src/main/java/org/onosproject/openroadm/service/OpenRoadmServiceModelRegistrator.java
@@ -16,7 +16,7 @@
 package org.onosproject.openroadm.service;
 
 import com.google.common.collect.ImmutableMap;
-import org.apache.felix.scr.annotations.Component;
+import org.osgi.service.component.annotations.Component;
 import org.onosproject.yang.AbstractYangModelRegistrator;
 import org.onosproject.yang.gen.v1.ietfinettypes.rev20130715.IetfInetTypes;
 import org.onosproject.yang.gen.v1.ietfyangtypes.rev20130715.IetfYangTypes;
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedInstancePortStore.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedInstancePortStore.java
index f48bdc3..3ad00b5 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedInstancePortStore.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedInstancePortStore.java
@@ -16,12 +16,6 @@
 package org.onosproject.openstacknetworking.impl;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -37,6 +31,11 @@
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.Versioned;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Set;
@@ -63,8 +62,7 @@
 /**
  * Manages the inventory of openstack instance port using a {@code ConsistentMap}.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = InstancePortStore.class)
 public class DistributedInstancePortStore
         extends AbstractStore<InstancePortEvent, InstancePortStoreDelegate>
         implements InstancePortStore {
@@ -81,10 +79,10 @@
             .register(InstancePort.State.class)
             .build();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedOpenstackNetworkStore.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedOpenstackNetworkStore.java
index b447b65..fba1599 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedOpenstackNetworkStore.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedOpenstackNetworkStore.java
@@ -17,12 +17,6 @@
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -53,6 +47,11 @@
 import org.openstack4j.openstack.networking.domain.NeutronPool;
 import org.openstack4j.openstack.networking.domain.NeutronPort;
 import org.openstack4j.openstack.networking.domain.NeutronSubnet;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.LinkedHashMap;
@@ -82,8 +81,7 @@
 /**
  * Manages the inventory of OpenStack network, subnet, and port using a {@code ConsistentMap}.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = OpenstackNetworkStore.class)
 public class DistributedOpenstackNetworkStore
         extends AbstractStore<OpenstackNetworkEvent, OpenstackNetworkStoreDelegate>
         implements OpenstackNetworkStore {
@@ -114,10 +112,10 @@
             .register(LinkedHashMap.class)
             .build();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedOpenstackRouterStore.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedOpenstackRouterStore.java
index d16647c..c8bd925 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedOpenstackRouterStore.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedOpenstackRouterStore.java
@@ -17,11 +17,6 @@
 
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -48,6 +43,10 @@
 import org.openstack4j.openstack.networking.domain.NeutronRouter;
 import org.openstack4j.openstack.networking.domain.NeutronRouterInterface;
 import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Set;
@@ -75,8 +74,7 @@
 /**
  * Manages the inventory of OpenStack router and floating IP using a {@code ConsistentMap}.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = OpenstackRouterStore.class)
 public class DistributedOpenstackRouterStore
         extends AbstractStore<OpenstackRouterEvent, OpenstackRouterStoreDelegate>
         implements OpenstackRouterStore {
@@ -100,13 +98,13 @@
             .register(NeutronFloatingIP.class)
             .build();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedSecurityGroupStore.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedSecurityGroupStore.java
index 0e1a880..ec12967 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedSecurityGroupStore.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/DistributedSecurityGroupStore.java
@@ -16,12 +16,6 @@
 package org.onosproject.openstacknetworking.impl;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -40,6 +34,11 @@
 import org.openstack4j.model.network.SecurityGroupRule;
 import org.openstack4j.openstack.networking.domain.NeutronSecurityGroup;
 import org.openstack4j.openstack.networking.domain.NeutronSecurityGroupRule;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Set;
@@ -60,8 +59,7 @@
  * Manages the inventory of OpenStack security group using a {@code ConsistentMap}.
  *
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = OpenstackSecurityGroupStore.class)
 public class DistributedSecurityGroupStore
         extends AbstractStore<OpenstackSecurityGroupEvent, OpenstackSecurityGroupStoreDelegate>
         implements OpenstackSecurityGroupStore {
@@ -79,10 +77,10 @@
             .register(NeutronSecurityGroup.class)
             .build();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/InstancePortManager.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/InstancePortManager.java
index 8d346a9..2d5c675 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/InstancePortManager.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/InstancePortManager.java
@@ -18,12 +18,6 @@
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
 import org.onosproject.cluster.ClusterService;
@@ -48,6 +42,11 @@
 import org.onosproject.openstacknetworking.api.InstancePortStore;
 import org.onosproject.openstacknetworking.api.InstancePortStoreDelegate;
 import org.onosproject.openstacknetworking.api.OpenstackRouterService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Objects;
@@ -68,8 +67,7 @@
  * Provides implementation of administering and interfacing instance ports.
  * It also provides instance port events for the hosts mapped to OpenStack VM interface.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = { InstancePortService.class, InstancePortAdminService.class })
 public class InstancePortManager
         extends ListenerRegistry<InstancePortEvent, InstancePortListener>
         implements InstancePortService, InstancePortAdminService {
@@ -91,22 +89,22 @@
 
     private static final String ERR_IN_USE = " still in use";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortStore instancePortStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackRouterService routerService;
 
     private final InstancePortStoreDelegate
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenStackSwitchingDirectPortProvider.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenStackSwitchingDirectPortProvider.java
index 75e6647..7a6253b 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenStackSwitchingDirectPortProvider.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenStackSwitchingDirectPortProvider.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.openstacknetworking.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.LeadershipService;
 import org.onosproject.cluster.NodeId;
@@ -66,28 +66,28 @@
     private static final String PORT_NAME = "portName";
     private static final long SLEEP_MS = 3000;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortService instancePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
     private final OpenstackNetworkListener openstackNetworkListener = new InternalOpenstackNetworkListener();
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackFlowRuleManager.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackFlowRuleManager.java
index a1289c4..2ea7400 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackFlowRuleManager.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackFlowRuleManager.java
@@ -16,12 +16,6 @@
 
 package org.onosproject.openstacknetworking.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.LeadershipService;
 import org.onosproject.cluster.NodeId;
@@ -43,6 +37,11 @@
 import org.onosproject.openstacknode.api.OpenstackNodeEvent;
 import org.onosproject.openstacknode.api.OpenstackNodeListener;
 import org.onosproject.openstacknode.api.OpenstackNodeService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Objects;
@@ -57,8 +56,7 @@
 /**
  * Sets flow rules directly using FlowRuleService.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = OpenstackFlowRuleService.class)
 public class OpenstackFlowRuleManager implements OpenstackFlowRuleService {
 
     private final Logger log = getLogger(getClass());
@@ -67,19 +65,19 @@
     private static final int HIGH_PRIORITY = 30000;
     private static final int TIMEOUT_SNAT_RULE = 60;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
     private final ExecutorService deviceEventExecutor =
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackMetadataProxyHandler.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackMetadataProxyHandler.java
index 9f928cd..995bb21 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackMetadataProxyHandler.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackMetadataProxyHandler.java
@@ -18,11 +18,11 @@
 
 import com.google.common.collect.ImmutableSet;
 import org.apache.commons.lang.StringUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.apache.http.Header;
 import org.apache.http.HttpEntityEnclosingRequest;
 import org.apache.http.HttpMessage;
@@ -121,28 +121,28 @@
     private static final String HTTP_PUT_METHOD = "PUT";
     private static final String HTTP_DELETE_METHOD = "DELETE";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortService instancePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackFlowRuleService osFlowRuleService;
 
     private final PacketProcessor packetProcessor = new InternalPacketProcessor();
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackNetworkManager.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackNetworkManager.java
index 1db1da1..3491450 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackNetworkManager.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackNetworkManager.java
@@ -18,12 +18,6 @@
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.ARP;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IpAddress;
@@ -61,6 +55,11 @@
 import org.openstack4j.model.network.Port;
 import org.openstack4j.model.network.Router;
 import org.openstack4j.model.network.Subnet;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.nio.ByteBuffer;
@@ -84,8 +83,7 @@
  * subnet, and port.
  */
 
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = { OpenstackNetworkAdminService.class, OpenstackNetworkService.class })
 public class OpenstackNetworkManager
         extends ListenerRegistry<OpenstackNetworkEvent, OpenstackNetworkListener>
         implements OpenstackNetworkAdminService, OpenstackNetworkService {
@@ -117,22 +115,22 @@
     private static final int PREFIX_LENGTH = 32;
 
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkStore osNetworkStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
     private final OpenstackNetworkStoreDelegate delegate = new InternalNetworkStoreDelegate();
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRouterManager.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRouterManager.java
index 658dc4f..242bdc8 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRouterManager.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRouterManager.java
@@ -17,12 +17,6 @@
 
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.CoreService;
 import org.onosproject.event.ListenerRegistry;
 import org.onosproject.openstacknetworking.api.Constants;
@@ -35,6 +29,11 @@
 import org.openstack4j.model.network.NetFloatingIP;
 import org.openstack4j.model.network.Router;
 import org.openstack4j.model.network.RouterInterface;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Objects;
@@ -49,8 +48,7 @@
  * Provides implementation of administering and interfacing OpenStack router and
  * floating IP address.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = { OpenstackRouterAdminService.class, OpenstackRouterService.class })
 public class OpenstackRouterManager
         extends ListenerRegistry<OpenstackRouterEvent, OpenstackRouterListener>
         implements OpenstackRouterAdminService, OpenstackRouterService {
@@ -75,10 +73,10 @@
 
     private static final String ERR_IN_USE = " still in use";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackRouterStore osRouterStore;
 
     private final OpenstackRouterStoreDelegate delegate = new InternalRouterStoreDelegate();
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingArpHandler.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingArpHandler.java
index 7708d06..a6f54bd 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingArpHandler.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingArpHandler.java
@@ -18,13 +18,6 @@
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.ARP;
 import org.onlab.packet.EthType;
 import org.onlab.packet.Ethernet;
@@ -70,6 +63,12 @@
 import org.openstack4j.model.network.NetFloatingIP;
 import org.openstack4j.model.network.Router;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.nio.ByteBuffer;
@@ -109,41 +108,41 @@
     private static final String DEVICE_OWNER_FLOATING_IP = "network:floatingip";
     private static final String ARP_MODE = "arpMode";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkAdminService osNetworkAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackRouterService osRouterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortService instancePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackFlowRuleService osFlowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService configService;
 
-    @Property(name = ARP_MODE, value = DEFAULT_ARP_MODE_STR,
-            label = "ARP processing mode, broadcast | proxy (default)")
+    //@Property(name = ARP_MODE, value = DEFAULT_ARP_MODE_STR,
+    //        label = "ARP processing mode, broadcast | proxy (default)")
     protected String arpMode = DEFAULT_ARP_MODE_STR;
 
     protected String gatewayMac = DEFAULT_GATEWAY_MAC_STR;
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingFloatingIpHandler.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingFloatingIpHandler.java
index 8a59d36..173b6bf 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingFloatingIpHandler.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingFloatingIpHandler.java
@@ -18,11 +18,11 @@
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
@@ -101,34 +101,34 @@
     private static final String ERR_FLOW = "Failed set flows for floating IP %s: ";
     private static final String ERR_UNSUPPORTED_NET_TYPE = "Unsupported network type %s";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortAdminService instancePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackRouterAdminService osRouterAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackFlowRuleService osFlowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PreCommitPortService preCommitPortService;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingHandler.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingHandler.java
index 16a3e28..c7b0ac1 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingHandler.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingHandler.java
@@ -18,13 +18,6 @@
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.ICMP;
 import org.onlab.packet.IPv4;
@@ -73,6 +66,12 @@
 import org.openstack4j.model.network.RouterInterface;
 import org.openstack4j.model.network.Subnet;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -115,44 +114,44 @@
     private static final String ERR_UNSUPPORTED_NET_TYPE = "Unsupported network type";
     private static final boolean USE_STATEFUL_SNAT = false;
 
-    @Property(name = "useStatefulSnat", boolValue = USE_STATEFUL_SNAT,
-            label = "Use Stateful SNAT for source NATing")
+    //@Property(name = "useStatefulSnat", boolValue = USE_STATEFUL_SNAT,
+    //        label = "Use Stateful SNAT for source NATing")
     private boolean useStatefulSnat = USE_STATEFUL_SNAT;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkAdminService osNetworkAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackRouterService osRouterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortService instancePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackFlowRuleService osFlowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService configService;
 
     private final ExecutorService eventExecutor = newSingleThreadScheduledExecutor(
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingIcmpHandler.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingIcmpHandler.java
index d1ab9d7..0fab57f 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingIcmpHandler.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingIcmpHandler.java
@@ -16,11 +16,11 @@
 package org.onosproject.openstacknetworking.impl;
 
 import com.google.common.base.Strings;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.ICMP;
 import org.onlab.packet.ICMPEcho;
@@ -93,25 +93,25 @@
     private static final String ERR_REQ = "Failed to handle ICMP request: ";
     private static final String ERR_DUPLICATE = " already exists";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortService instancePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackRouterService osRouterService;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingSnatHandler.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingSnatHandler.java
index 17f4c55..4695338 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingSnatHandler.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackRoutingSnatHandler.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.openstacknetworking.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IPv4;
 import org.onlab.packet.IpAddress;
@@ -98,31 +98,31 @@
     private static final KryoNamespace.Builder NUMBER_SERIALIZER = KryoNamespace.newBuilder()
             .register(KryoNamespaces.API);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortService instancePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackRouterService osRouterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackFlowRuleService osFlowRuleService;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSecurityGroupHandler.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSecurityGroupHandler.java
index 55f9c45..114cc44 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSecurityGroupHandler.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSecurityGroupHandler.java
@@ -19,13 +19,6 @@
 import com.google.common.base.Strings;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IPv4;
 import org.onlab.packet.Ip4Address;
@@ -68,6 +61,12 @@
 import org.openstack4j.model.network.SecurityGroupRule;
 import org.openstack4j.openstack.networking.domain.NeutronSecurityGroupRule;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collections;
@@ -81,9 +80,9 @@
 import static java.util.concurrent.Executors.newSingleThreadExecutor;
 import static org.onlab.util.Tools.groupedThreads;
 import static org.onosproject.openstacknetworking.api.Constants.ACL_TABLE;
-import static org.onosproject.openstacknetworking.api.Constants.JUMP_TABLE;
 import static org.onosproject.openstacknetworking.api.Constants.CT_TABLE;
 import static org.onosproject.openstacknetworking.api.Constants.ERROR_TABLE;
+import static org.onosproject.openstacknetworking.api.Constants.JUMP_TABLE;
 import static org.onosproject.openstacknetworking.api.Constants.OPENSTACK_NETWORKING_APP_ID;
 import static org.onosproject.openstacknetworking.api.Constants.PRIORITY_ACL_RULE;
 import static org.onosproject.openstacknetworking.api.Constants.PRIORITY_CT_DROP_RULE;
@@ -105,41 +104,41 @@
 
     private static final boolean USE_SECURITY_GROUP = false;
 
-    @Property(name = "useSecurityGroup", boolValue = USE_SECURITY_GROUP,
-            label = "Apply OpenStack security group rule for VM traffic")
+    //@Property(name = "useSecurityGroup", boolValue = USE_SECURITY_GROUP,
+    //        label = "Apply OpenStack security group rule for VM traffic")
     private boolean useSecurityGroup = USE_SECURITY_GROUP;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortService instancePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackSecurityGroupService securityGroupService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackFlowRuleService osFlowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
     private final InstancePortListener instancePortListener =
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSecurityGroupManager.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSecurityGroupManager.java
index 03e1e98..a6e6e2a 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSecurityGroupManager.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSecurityGroupManager.java
@@ -16,12 +16,6 @@
 package org.onosproject.openstacknetworking.impl;
 
 import com.google.common.base.Strings;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.CoreService;
 import org.onosproject.event.ListenerRegistry;
 import org.onosproject.openstacknetworking.api.Constants;
@@ -34,6 +28,11 @@
 import org.openstack4j.model.network.SecurityGroup;
 import org.openstack4j.model.network.SecurityGroupRule;
 import org.openstack4j.openstack.networking.domain.NeutronSecurityGroup;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.List;
@@ -48,8 +47,7 @@
  * Provides implementation of administering and interfacing OpenStack security
  * groups.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = { OpenstackSecurityGroupAdminService.class, OpenstackSecurityGroupService.class })
 public class OpenstackSecurityGroupManager
         extends ListenerRegistry<OpenstackSecurityGroupEvent, OpenstackSecurityGroupListener>
         implements OpenstackSecurityGroupAdminService, OpenstackSecurityGroupService {
@@ -71,10 +69,10 @@
 
     private boolean useSecurityGroup = false;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackSecurityGroupStore osSecurityGroupStore;
 
     private final OpenstackSecurityGroupStoreDelegate delegate = new InternalSecurityGroupStoreDelegate();
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingArpHandler.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingArpHandler.java
index f64adc0..4fcd6bd 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingArpHandler.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingArpHandler.java
@@ -16,13 +16,7 @@
 package org.onosproject.openstacknetworking.impl;
 
 import com.google.common.base.Strings;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import com.google.common.collect.Sets;
 import org.onlab.packet.ARP;
 import org.onlab.packet.EthType;
 import org.onlab.packet.Ethernet;
@@ -64,6 +58,12 @@
 import org.openstack4j.model.network.NetworkType;
 import org.openstack4j.model.network.Subnet;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -101,45 +101,45 @@
     private static final String GATEWAY_MAC = "gatewayMac";
     private static final String ARP_MODE = "arpMode";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     OpenstackFlowRuleService osFlowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     ComponentConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     InstancePortService instancePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Property(name = GATEWAY_MAC, value = DEFAULT_GATEWAY_MAC_STR,
-            label = "Fake MAC address for virtual network subnet gateway")
+    //@Property(name = GATEWAY_MAC, value = DEFAULT_GATEWAY_MAC_STR,
+    //        label = "Fake MAC address for virtual network subnet gateway")
     private String gatewayMac = DEFAULT_GATEWAY_MAC_STR;
 
-    @Property(name = ARP_MODE, value = DEFAULT_ARP_MODE_STR,
-            label = "ARP processing mode, broadcast | proxy (default)")
+    //@Property(name = ARP_MODE, value = DEFAULT_ARP_MODE_STR,
+    //        label = "ARP processing mode, broadcast | proxy (default)")
     protected String arpMode = DEFAULT_ARP_MODE_STR;
 
     private final InternalPacketProcessor packetProcessor = new InternalPacketProcessor();
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingDhcpHandler.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingDhcpHandler.java
index 32c1ad9..efd10d9 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingDhcpHandler.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingDhcpHandler.java
@@ -18,13 +18,6 @@
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Lists;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.DHCP;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IPv4;
@@ -66,6 +59,12 @@
 import org.openstack4j.model.network.Port;
 import org.openstack4j.model.network.Subnet;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.nio.ByteBuffer;
@@ -114,35 +113,35 @@
     private static final int V4_CIDR_UPPER_BOUND = 33;
     private static final int PADDING_SIZE = 4;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortService instancePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackFlowRuleService osFlowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Property(name = DHCP_SERVER_MAC, value = DEFAULT_GATEWAY_MAC_STR,
-            label = "Fake MAC address for virtual network subnet gateway")
+    //@Property(name = DHCP_SERVER_MAC, value = DEFAULT_GATEWAY_MAC_STR,
+    //        label = "Fake MAC address for virtual network subnet gateway")
     private String dhcpServerMac = DEFAULT_GATEWAY_MAC_STR;
 
     private int dhcpDataMtu = DHCP_DATA_MTU_DEFAULT;
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingHandler.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingHandler.java
index 332ed7f..3ac981a 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingHandler.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingHandler.java
@@ -17,11 +17,11 @@
 package org.onosproject.openstacknetworking.impl;
 
 import com.google.common.base.Strings;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.VlanId;
 import org.onosproject.cluster.ClusterService;
@@ -91,37 +91,37 @@
 
     private static final String ERR_SET_FLOWS_VNI = "Failed to set flows for %s: Failed to get VNI for %s";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackFlowRuleService osFlowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortService instancePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackSecurityGroupService securityGroupService;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingHostProvider.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingHostProvider.java
index 40413d7..92005cf 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingHostProvider.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/OpenstackSwitchingHostProvider.java
@@ -16,12 +16,6 @@
 package org.onosproject.openstacknetworking.impl;
 
 import com.google.common.base.Strings;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
@@ -54,6 +48,11 @@
 import org.onosproject.openstacknode.api.OpenstackNodeService;
 import org.openstack4j.model.network.Network;
 import org.openstack4j.model.network.NetworkType;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -76,8 +75,7 @@
 import static org.onosproject.openstacknetworking.util.OpenstackNetworkingUtil.vnicType;
 import static org.onosproject.openstacknode.api.OpenstackNode.NodeType.CONTROLLER;
 
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = HostProvider.class)
 public final class OpenstackSwitchingHostProvider
         extends AbstractProvider implements HostProvider {
 
@@ -86,25 +84,25 @@
     private static final String ERR_ADD_HOST = "Failed to add host: ";
     private static final String SONA_HOST_SCHEME = "sona";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostProviderRegistry hostProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
     private HostProviderService hostProviderService;
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/PreCommitPortManager.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/PreCommitPortManager.java
index 2926072..2e506f3 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/PreCommitPortManager.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/impl/PreCommitPortManager.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.openstacknetworking.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -33,6 +27,11 @@
 import org.onosproject.store.service.ConsistentMap;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.HashMap;
@@ -48,8 +47,7 @@
 /**
  * Implementation of pre-commit service.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = PreCommitPortService.class)
 public class PreCommitPortManager implements PreCommitPortService {
 
     protected final Logger log = getLogger(getClass());
@@ -59,10 +57,10 @@
             .register(OpenstackNetworkEvent.Type.class)
             .build();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private ConsistentMap<String, Map<Type, Set<String>>> store;
diff --git a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/web/OpenstackNetworkingCodecRegister.java b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/web/OpenstackNetworkingCodecRegister.java
index 92167d0..632381a 100644
--- a/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/web/OpenstackNetworkingCodecRegister.java
+++ b/apps/openstacknetworking/app/src/main/java/org/onosproject/openstacknetworking/web/OpenstackNetworkingCodecRegister.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.openstacknetworking.web;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.codec.CodecService;
 import org.onosproject.openstacknetworking.api.InstancePort;
 import org.onosproject.openstacknetworking.codec.InstancePortCodec;
@@ -35,7 +35,7 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CodecService codecService;
 
     @Activate
diff --git a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiManager.java b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiManager.java
index 848cfc7..4191503 100644
--- a/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiManager.java
+++ b/apps/openstacknetworkingui/src/main/java/org/onosproject/openstacknetworkingui/OpenstackNetworkingUiManager.java
@@ -17,12 +17,6 @@
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Streams;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Device;
 import org.onosproject.net.DeviceId;
@@ -39,6 +33,11 @@
 import org.onosproject.ui.UiTopoOverlayFactory;
 import org.onosproject.ui.UiView;
 import org.onosproject.ui.UiViewHidden;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -53,8 +52,7 @@
 /**
  * Implementation of OpenStack Networking UI service.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = OpenstackNetworkingUiService.class)
 public class OpenstackNetworkingUiManager implements OpenstackNetworkingUiService {
 
     private static final ClassLoader CL = OpenstackNetworkingUiManager.class.getClassLoader();
@@ -66,13 +64,13 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkStore linkStore;
 
     Set<Device> vDevices;
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DefaultOpenstackNodeHandler.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DefaultOpenstackNodeHandler.java
index 924cb7c..8b9adc0 100644
--- a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DefaultOpenstackNodeHandler.java
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DefaultOpenstackNodeHandler.java
@@ -15,14 +15,7 @@
  */
 package org.onosproject.openstacknode.impl;
 
-import com.google.common.collect.Lists;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import com.google.common.collect.Maps;
 import org.onlab.packet.IpAddress;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
@@ -65,6 +58,12 @@
 import org.onosproject.ovsdb.rfc.table.Interface;
 import org.openstack4j.api.OSClient;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -115,40 +114,40 @@
     private static final boolean DEFAULT_AUTO_RECOVERY = true;
     private static final int DPID_BEGIN = 3;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceAdminService deviceAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OvsdbController ovsdbController;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeAdminService osNodeAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Property(name = OVSDB_PORT, intValue = DEFAULT_OVSDB_PORT,
-            label = "OVSDB server listen port")
+    //@Property(name = OVSDB_PORT, intValue = DEFAULT_OVSDB_PORT,
+    //        label = "OVSDB server listen port")
     private int ovsdbPort = DEFAULT_OVSDB_PORT;
 
-    @Property(name = AUTO_RECOVERY, boolValue = DEFAULT_AUTO_RECOVERY,
-            label = "A flag which indicates whether auto-recover openstack " +
-                    "node status at the receiving of switch reconnecting event.")
+    //@Property(name = AUTO_RECOVERY, boolValue = DEFAULT_AUTO_RECOVERY,
+    //        label = "A flag which indicates whether auto-recover openstack " +
+    //                "node status at the receiving of switch reconnecting event.")
     private boolean autoRecovery = DEFAULT_AUTO_RECOVERY;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DistributedOpenstackNodeStore.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DistributedOpenstackNodeStore.java
index 571890b..71f5ba5 100644
--- a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DistributedOpenstackNodeStore.java
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DistributedOpenstackNodeStore.java
@@ -16,12 +16,6 @@
 package org.onosproject.openstacknode.impl;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -46,6 +40,11 @@
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.Versioned;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -70,8 +69,7 @@
 /**
  * Implementation of openstack node store using consistent map.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = OpenstackNodeStore.class)
 public class DistributedOpenstackNodeStore
         extends AbstractStore<OpenstackNodeEvent, OpenstackNodeStoreDelegate>
         implements OpenstackNodeStore {
@@ -105,10 +103,10 @@
             .register(Collection.class)
             .build();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/OpenstackNodeManager.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/OpenstackNodeManager.java
index c2f8bc1..846f44e 100644
--- a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/OpenstackNodeManager.java
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/OpenstackNodeManager.java
@@ -17,14 +17,6 @@
 
 import com.google.common.base.Strings;
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.Tools;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.LeadershipService;
@@ -44,6 +36,12 @@
 import org.onosproject.store.service.AtomicCounter;
 import org.onosproject.store.service.StorageService;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Dictionary;
@@ -71,8 +69,7 @@
 /**
  * Service administering the inventory of openstack nodes.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = { OpenstackNodeService.class, OpenstackNodeAdminService.class })
 public class OpenstackNodeManager extends ListenerRegistry<OpenstackNodeEvent, OpenstackNodeListener>
         implements OpenstackNodeService, OpenstackNodeAdminService {
 
@@ -93,29 +90,29 @@
 
     private static final String NOT_DUPLICATED_MSG = "% cannot be duplicated";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeStore osNodeStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OvsdbController ovsdbController;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Property(name = OVSDB_PORT, intValue = DEFAULT_OVSDB_PORT,
-            label = "OVSDB server listen port")
+    //@Property(name = OVSDB_PORT, intValue = DEFAULT_OVSDB_PORT,
+    //        label = "OVSDB server listen port")
     private int ovsdbPort = DEFAULT_OVSDB_PORT;
 
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/web/OpenstackNodeCodecRegister.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/web/OpenstackNodeCodecRegister.java
index bb92eb3..db0a4c0 100644
--- a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/web/OpenstackNodeCodecRegister.java
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/web/OpenstackNodeCodecRegister.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.openstacknode.web;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.codec.CodecService;
 import org.onosproject.net.behaviour.ControllerInfo;
 import org.onosproject.openstacknode.api.DpdkConfig;
@@ -50,7 +50,7 @@
 
     private final org.slf4j.Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CodecService codecService;
 
     @Activate
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/gui/OpensteckTelemetryUI.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/gui/OpensteckTelemetryUI.java
index bf8ae4b..3f09f6a 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/gui/OpensteckTelemetryUI.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/gui/OpensteckTelemetryUI.java
@@ -16,16 +16,15 @@
 package org.onosproject.openstacktelemetry.gui;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
 import org.onosproject.ui.UiView;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -36,8 +35,7 @@
 /**
  * Mechanism to stream data to the GUI.
  */
-@Component(immediate = true, enabled = true)
-@Service(value = OpensteckTelemetryUI.class)
+@Component(immediate = true, enabled = true, service = OpensteckTelemetryUI.class)
 public class OpensteckTelemetryUI {
     private static final String OPENSTACKTELEMETRY_ID = "openstacktelemetry";
     private static final String OPENSTACKTELEMETRY_TEXT = "Openstack Telemetry";
@@ -46,7 +44,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // Factory for UI message handlers
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/GrpcTelemetryConfigManager.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/GrpcTelemetryConfigManager.java
index 60e851e..97ddcb1 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/GrpcTelemetryConfigManager.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/GrpcTelemetryConfigManager.java
@@ -15,14 +15,6 @@
  */
 package org.onosproject.openstacktelemetry.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.openstacktelemetry.api.GrpcTelemetryAdminService;
@@ -30,6 +22,12 @@
 import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
 import org.onosproject.openstacktelemetry.config.DefaultGrpcTelemetryConfig;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -48,8 +46,7 @@
 /**
  * gRPC server configuration manager for publishing openstack telemetry.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = GrpcTelemetryConfigService.class)
 public class GrpcTelemetryConfigManager implements GrpcTelemetryConfigService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -60,30 +57,30 @@
     private static final String USE_PLAINTEXT = "usePlaintext";
     private static final String MAX_INBOUND_MSG_SIZE = "maxInboundMsgSize";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected GrpcTelemetryAdminService grpcTelemetryAdminService;
 
-    @Property(name = ADDRESS, value = DEFAULT_GRPC_SERVER_IP,
-            label = "Default IP address to establish initial connection to gRPC server")
+    //@Property(name = ADDRESS, value = DEFAULT_GRPC_SERVER_IP,
+    //        label = "Default IP address to establish initial connection to gRPC server")
     protected String address = DEFAULT_GRPC_SERVER_IP;
 
-    @Property(name = PORT, intValue = DEFAULT_GRPC_SERVER_PORT,
-            label = "Default port number to establish initial connection to gRPC server")
+    //@Property(name = PORT, intValue = DEFAULT_GRPC_SERVER_PORT,
+    //        label = "Default port number to establish initial connection to gRPC server")
     protected Integer port = DEFAULT_GRPC_SERVER_PORT;
 
-    @Property(name = USE_PLAINTEXT, boolValue = DEFAULT_GRPC_USE_PLAINTEXT,
-            label = "UsePlaintext flag value used for connecting to gRPC server")
+    //@Property(name = USE_PLAINTEXT, boolValue = DEFAULT_GRPC_USE_PLAINTEXT,
+    //        label = "UsePlaintext flag value used for connecting to gRPC server")
     protected Boolean usePlaintext = DEFAULT_GRPC_USE_PLAINTEXT;
 
-    @Property(name = MAX_INBOUND_MSG_SIZE, intValue = DEFAULT_GRPC_MAX_INBOUND_MSG_SIZE,
-            label = "Maximum inbound message size used for communicating with gRPC server")
+    //@Property(name = MAX_INBOUND_MSG_SIZE, intValue = DEFAULT_GRPC_MAX_INBOUND_MSG_SIZE,
+    //        label = "Maximum inbound message size used for communicating with gRPC server")
     protected Integer maxInboundMsgSize = DEFAULT_GRPC_MAX_INBOUND_MSG_SIZE;
 
-    @Property(name = ENABLE_SERVICE, boolValue = DEFAULT_DISABLE,
-            label = "Specify the default behavior of telemetry service")
+    //@Property(name = ENABLE_SERVICE, boolValue = DEFAULT_DISABLE,
+    //        label = "Specify the default behavior of telemetry service")
     protected Boolean enableService = DEFAULT_DISABLE;
 
     @Activate
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/GrpcTelemetryManager.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/GrpcTelemetryManager.java
index 3fcf013..391b1d8 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/GrpcTelemetryManager.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/GrpcTelemetryManager.java
@@ -17,29 +17,27 @@
 
 import io.grpc.ManagedChannel;
 import io.grpc.ManagedChannelBuilder;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.openstacktelemetry.api.GrpcTelemetryAdminService;
 import org.onosproject.openstacktelemetry.api.OpenstackTelemetryService;
 import org.onosproject.openstacktelemetry.api.config.GrpcTelemetryConfig;
 import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 /**
  * gRPC telemetry manager.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = GrpcTelemetryAdminService.class)
 public class GrpcTelemetryManager implements GrpcTelemetryAdminService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackTelemetryService openstackTelemetryService;
 
     private ManagedChannel channel = null;
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/InfluxDbTelemetryConfigManager.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/InfluxDbTelemetryConfigManager.java
index 52eac35..e3db947 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/InfluxDbTelemetryConfigManager.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/InfluxDbTelemetryConfigManager.java
@@ -15,14 +15,6 @@
  */
 package org.onosproject.openstacktelemetry.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.openstacktelemetry.api.InfluxDbTelemetryAdminService;
@@ -30,6 +22,12 @@
 import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
 import org.onosproject.openstacktelemetry.config.DefaultInfluxDbTelemetryConfig;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -49,8 +47,7 @@
 /**
  * InfluxDB server configuration manager for publishing openstack telemetry.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = InfluxDbTelemetryConfigService.class)
 public class InfluxDbTelemetryConfigManager implements InfluxDbTelemetryConfigService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -64,42 +61,42 @@
     private static final String MEASUREMENT = "measurement";
     private static final String ENABLE_BATCH = "enableBatch";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InfluxDbTelemetryAdminService influxDbTelemetryAdminService;
 
-    @Property(name = ADDRESS, value = DEFAULT_INFLUXDB_SERVER_IP,
-            label = "Default IP address to establish initial connection to InfluxDB server")
+    //@Property(name = ADDRESS, value = DEFAULT_INFLUXDB_SERVER_IP,
+    //        label = "Default IP address to establish initial connection to InfluxDB server")
     protected String address = DEFAULT_INFLUXDB_SERVER_IP;
 
-    @Property(name = PORT, intValue = DEFAULT_INFLUXDB_SERVER_PORT,
-            label = "Default port number to establish initial connection to InfluxDB server")
+    //@Property(name = PORT, intValue = DEFAULT_INFLUXDB_SERVER_PORT,
+    //        label = "Default port number to establish initial connection to InfluxDB server")
     protected Integer port = DEFAULT_INFLUXDB_SERVER_PORT;
 
-    @Property(name = USERNAME, value = DEFAULT_INFLUXDB_USERNAME,
-            label = "Username used for authenticating against InfluxDB server")
+    //@Property(name = USERNAME, value = DEFAULT_INFLUXDB_USERNAME,
+    //        label = "Username used for authenticating against InfluxDB server")
     protected String username = DEFAULT_INFLUXDB_USERNAME;
 
-    @Property(name = PASSWORD, value = DEFAULT_INFLUXDB_PASSWORD,
-            label = "Password used for authenticating against InfluxDB server")
+    //@Property(name = PASSWORD, value = DEFAULT_INFLUXDB_PASSWORD,
+    //        label = "Password used for authenticating against InfluxDB server")
     protected String password = DEFAULT_INFLUXDB_PASSWORD;
 
-    @Property(name = DATABASE, value = DEFAULT_INFLUXDB_DATABASE,
-            label = "Database of InfluxDB server")
+    //@Property(name = DATABASE, value = DEFAULT_INFLUXDB_DATABASE,
+    //        label = "Database of InfluxDB server")
     protected String database = DEFAULT_INFLUXDB_DATABASE;
 
-    @Property(name = MEASUREMENT, value = DEFAULT_INFLUXDB_MEASUREMENT,
-            label = "Measurement of InfluxDB server")
+    //@Property(name = MEASUREMENT, value = DEFAULT_INFLUXDB_MEASUREMENT,
+    //        label = "Measurement of InfluxDB server")
     protected String measurement = DEFAULT_INFLUXDB_MEASUREMENT;
 
-    @Property(name = ENABLE_BATCH, boolValue = DEFAULT_INFLUXDB_ENABLE_BATCH,
-            label = "Flag value of enabling batch mode of InfluxDB server")
+    //@Property(name = ENABLE_BATCH, boolValue = DEFAULT_INFLUXDB_ENABLE_BATCH,
+    //        label = "Flag value of enabling batch mode of InfluxDB server")
     protected Boolean enableBatch = DEFAULT_INFLUXDB_ENABLE_BATCH;
 
-    @Property(name = ENABLE_SERVICE, boolValue = DEFAULT_DISABLE,
-            label = "Specify the default behavior of telemetry service")
+    //@Property(name = ENABLE_SERVICE, boolValue = DEFAULT_DISABLE,
+    //        label = "Specify the default behavior of telemetry service")
     protected Boolean enableService = DEFAULT_DISABLE;
 
     @Activate
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/InfluxDbTelemetryManager.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/InfluxDbTelemetryManager.java
index e35d662..16db799 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/InfluxDbTelemetryManager.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/InfluxDbTelemetryManager.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.openstacktelemetry.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.influxdb.InfluxDB;
 import org.influxdb.InfluxDBFactory;
 import org.influxdb.dto.BatchPoints;
@@ -32,6 +26,11 @@
 import org.onosproject.openstacktelemetry.api.OpenstackTelemetryService;
 import org.onosproject.openstacktelemetry.api.config.InfluxDbTelemetryConfig;
 import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -40,8 +39,7 @@
 /**
  * InfluxDB telemetry manager.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = InfluxDbTelemetryAdminService.class)
 public class InfluxDbTelemetryManager implements InfluxDbTelemetryAdminService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -71,7 +69,7 @@
     private static final String ERROR_PKTS = "errorPkts";
     private static final String DROP_PKTS = "dropPkts";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackTelemetryService openstackTelemetryService;
 
     private static final String INFLUX_PROTOCOL = "http";
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/KafkaTelemetryConfigManager.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/KafkaTelemetryConfigManager.java
index 956e275..1212b0b 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/KafkaTelemetryConfigManager.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/KafkaTelemetryConfigManager.java
@@ -15,14 +15,6 @@
  */
 package org.onosproject.openstacktelemetry.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.openstacktelemetry.api.KafkaTelemetryAdminService;
@@ -30,6 +22,12 @@
 import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
 import org.onosproject.openstacktelemetry.config.DefaultKafkaTelemetryConfig;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -51,8 +49,7 @@
 /**
  * Kafka server configuration manager for publishing openstack telemetry.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = KafkaTelemetryConfigService.class)
 public class KafkaTelemetryConfigManager implements KafkaTelemetryConfigService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -68,51 +65,51 @@
     private static final String KEY_SERIALIZER = "keySerializer";
     private static final String VALUE_SERIALIZER = "valueSerializer";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected KafkaTelemetryAdminService kafkaTelemetryAdminService;
 
-    @Property(name = ADDRESS, value = DEFAULT_KAFKA_SERVER_IP,
-            label = "Default IP address to establish initial connection to Kafka server")
+    //@Property(name = ADDRESS, value = DEFAULT_KAFKA_SERVER_IP,
+    //        label = "Default IP address to establish initial connection to Kafka server")
     protected String address = DEFAULT_KAFKA_SERVER_IP;
 
-    @Property(name = PORT, intValue = DEFAULT_KAFKA_SERVER_PORT,
-            label = "Default port number to establish initial connection to Kafka server")
+    //@Property(name = PORT, intValue = DEFAULT_KAFKA_SERVER_PORT,
+    //        label = "Default port number to establish initial connection to Kafka server")
     protected Integer port = DEFAULT_KAFKA_SERVER_PORT;
 
-    @Property(name = RETRIES, intValue = DEFAULT_KAFKA_RETRIES,
-            label = "Number of times the producer can retry to send after first failure")
+    //@Property(name = RETRIES, intValue = DEFAULT_KAFKA_RETRIES,
+    //        label = "Number of times the producer can retry to send after first failure")
     protected int retries = DEFAULT_KAFKA_RETRIES;
 
-    @Property(name = REQUIRED_ACKS, value = DEFAULT_KAFKA_REQUIRED_ACKS,
-            label = "Producer will get an acknowledgement after the leader has replicated the data")
+    //@Property(name = REQUIRED_ACKS, value = DEFAULT_KAFKA_REQUIRED_ACKS,
+    //        label = "Producer will get an acknowledgement after the leader has replicated the data")
     protected String requiredAcks = DEFAULT_KAFKA_REQUIRED_ACKS;
 
-    @Property(name = BATCH_SIZE, intValue = DEFAULT_KAFKA_BATCH_SIZE,
-            label = "The largest record batch size allowed by Kafka")
+    //@Property(name = BATCH_SIZE, intValue = DEFAULT_KAFKA_BATCH_SIZE,
+    //        label = "The largest record batch size allowed by Kafka")
     protected Integer batchSize = DEFAULT_KAFKA_BATCH_SIZE;
 
-    @Property(name = LINGER_MS, intValue = DEFAULT_KAFKA_LINGER_MS,
-            label = "The producer groups together any records that arrive in " +
-                    "between request transmissions into a single batched request")
+    //@Property(name = LINGER_MS, intValue = DEFAULT_KAFKA_LINGER_MS,
+    //        label = "The producer groups together any records that arrive in " +
+    //                "between request transmissions into a single batched request")
     protected Integer lingerMs = DEFAULT_KAFKA_LINGER_MS;
 
-    @Property(name = MEMORY_BUFFER, intValue = DEFAULT_KAFKA_MEMORY_BUFFER,
-            label = "The total memory used for log cleaner I/O buffers across all cleaner threads")
+    //@Property(name = MEMORY_BUFFER, intValue = DEFAULT_KAFKA_MEMORY_BUFFER,
+    //        label = "The total memory used for log cleaner I/O buffers across all cleaner threads")
     protected Integer memoryBuffer = DEFAULT_KAFKA_MEMORY_BUFFER;
 
-    @Property(name = KEY_SERIALIZER, value = DEFAULT_KAFKA_KEY_SERIALIZER,
-            label = "Serializer class for key that implements the Serializer interface")
+    //@Property(name = KEY_SERIALIZER, value = DEFAULT_KAFKA_KEY_SERIALIZER,
+    //        label = "Serializer class for key that implements the Serializer interface")
     protected String keySerializer = DEFAULT_KAFKA_KEY_SERIALIZER;
 
-    @Property(name = VALUE_SERIALIZER, value = DEFAULT_KAFKA_VALUE_SERIALIZER,
-            label = "Serializer class for value that implements the Serializer interface")
+    //@Property(name = VALUE_SERIALIZER, value = DEFAULT_KAFKA_VALUE_SERIALIZER,
+    //        label = "Serializer class for value that implements the Serializer interface")
     protected String valueSerializer = DEFAULT_KAFKA_VALUE_SERIALIZER;
 
-    @Property(name = ENABLE_SERVICE, boolValue = DEFAULT_DISABLE,
-            label = "Specify the default behavior of telemetry service")
+    //@Property(name = ENABLE_SERVICE, boolValue = DEFAULT_DISABLE,
+    //        label = "Specify the default behavior of telemetry service")
     protected Boolean enableService = DEFAULT_DISABLE;
 
     @Activate
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/KafkaTelemetryManager.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/KafkaTelemetryManager.java
index 56a0e81..e895e46 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/KafkaTelemetryManager.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/KafkaTelemetryManager.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.openstacktelemetry.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.apache.kafka.clients.producer.KafkaProducer;
 import org.apache.kafka.clients.producer.Producer;
 import org.apache.kafka.clients.producer.ProducerRecord;
@@ -29,6 +23,11 @@
 import org.onosproject.openstacktelemetry.api.OpenstackTelemetryService;
 import org.onosproject.openstacktelemetry.api.config.KafkaTelemetryConfig;
 import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -38,8 +37,7 @@
 /**
  * Kafka telemetry manager.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = KafkaTelemetryAdminService.class)
 public class KafkaTelemetryManager implements KafkaTelemetryAdminService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -53,7 +51,7 @@
     private static final String KEY_SERIALIZER = "key.serializer";
     private static final String VALUE_SERIALIZER = "value.serializer";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackTelemetryService openstackTelemetryService;
 
     private Producer<String, byte[]> producer = null;
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/OpenstackTelemetryManager.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/OpenstackTelemetryManager.java
index 761e01b..891482a 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/OpenstackTelemetryManager.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/OpenstackTelemetryManager.java
@@ -17,12 +17,6 @@
 
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.apache.kafka.clients.producer.ProducerRecord;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.openstacktelemetry.api.FlowInfo;
@@ -33,6 +27,11 @@
 import org.onosproject.openstacktelemetry.api.RestTelemetryService;
 import org.onosproject.openstacktelemetry.api.TelemetryService;
 import org.onosproject.openstacktelemetry.codec.TinaMessageByteBufferCodec;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -48,15 +47,14 @@
 /**
  * Openstack telemetry manager.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = OpenstackTelemetryService.class)
 public class OpenstackTelemetryManager implements OpenstackTelemetryService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
     private static final String ENABLE_SERVICE = "enableService";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
     private List<TelemetryService> telemetryServices = Lists.newArrayList();
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/RestTelemetryConfigManager.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/RestTelemetryConfigManager.java
index 25c7afe..e3b76b6 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/RestTelemetryConfigManager.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/RestTelemetryConfigManager.java
@@ -15,14 +15,6 @@
  */
 package org.onosproject.openstacktelemetry.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.openstacktelemetry.api.RestTelemetryAdminService;
@@ -30,6 +22,12 @@
 import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
 import org.onosproject.openstacktelemetry.config.DefaultRestTelemetryConfig;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -48,8 +46,7 @@
 /**
  * REST server configuration manager for publishing openstack telemetry.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = RestTelemetryConfigService.class)
 public class RestTelemetryConfigManager implements RestTelemetryConfigService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -62,38 +59,38 @@
     private static final String REQUEST_MEDIA_TYPE = "requestMediaType";
     private static final String RESPONSE_MEDIA_TYPE = "responseMediaType";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RestTelemetryAdminService restTelemetryAdminService;
 
-    @Property(name = ADDRESS, value = DEFAULT_REST_SERVER_IP,
-            label = "Default IP address to establish initial connection to REST server")
+    //@Property(name = ADDRESS, value = DEFAULT_REST_SERVER_IP,
+    //        label = "Default IP address to establish initial connection to REST server")
     protected String address = DEFAULT_REST_SERVER_IP;
 
-    @Property(name = PORT, intValue = DEFAULT_REST_SERVER_PORT,
-            label = "Default port number to establish initial connection to REST server")
+    //@Property(name = PORT, intValue = DEFAULT_REST_SERVER_PORT,
+    //        label = "Default port number to establish initial connection to REST server")
     protected Integer port = DEFAULT_REST_SERVER_PORT;
 
-    @Property(name = ENDPOINT, value = DEFAULT_REST_ENDPOINT,
-            label = "Endpoint of REST server")
+    //@Property(name = ENDPOINT, value = DEFAULT_REST_ENDPOINT,
+    //        label = "Endpoint of REST server")
     protected String endpoint = DEFAULT_REST_ENDPOINT;
 
-    @Property(name = METHOD, value = DEFAULT_REST_METHOD,
-            label = "HTTP method of REST server")
+    //@Property(name = METHOD, value = DEFAULT_REST_METHOD,
+    //        label = "HTTP method of REST server")
     protected String method = DEFAULT_REST_METHOD;
 
-    @Property(name = REQUEST_MEDIA_TYPE, value = DEFAULT_REST_REQUEST_MEDIA_TYPE,
-            label = "Request media type of REST server")
+    //@Property(name = REQUEST_MEDIA_TYPE, value = DEFAULT_REST_REQUEST_MEDIA_TYPE,
+    //        label = "Request media type of REST server")
     protected String requestMediaType = DEFAULT_REST_REQUEST_MEDIA_TYPE;
 
-    @Property(name = RESPONSE_MEDIA_TYPE, value = DEFAULT_REST_RESPONSE_MEDIA_TYPE,
-            label = "Response media type of REST server")
+    //@Property(name = RESPONSE_MEDIA_TYPE, value = DEFAULT_REST_RESPONSE_MEDIA_TYPE,
+    //        label = "Response media type of REST server")
     protected String responseMediaType = DEFAULT_REST_RESPONSE_MEDIA_TYPE;
 
-    @Property(name = ENABLE_SERVICE, boolValue = DEFAULT_DISABLE,
-            label = "Specify the default behavior of telemetry service")
+    //@Property(name = ENABLE_SERVICE, boolValue = DEFAULT_DISABLE,
+    //        label = "Specify the default behavior of telemetry service")
     protected Boolean enableService = DEFAULT_DISABLE;
 
     @Activate
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/RestTelemetryManager.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/RestTelemetryManager.java
index f94748c..9b4aaf9 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/RestTelemetryManager.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/RestTelemetryManager.java
@@ -15,16 +15,15 @@
  */
 package org.onosproject.openstacktelemetry.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.openstacktelemetry.api.OpenstackTelemetryService;
 import org.onosproject.openstacktelemetry.api.RestTelemetryAdminService;
 import org.onosproject.openstacktelemetry.api.config.RestTelemetryConfig;
 import org.onosproject.openstacktelemetry.api.config.TelemetryConfig;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -37,8 +36,7 @@
 /**
  * REST telemetry manager.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = RestTelemetryAdminService.class)
 public class RestTelemetryManager implements RestTelemetryAdminService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -47,7 +45,7 @@
     private static final String POST_METHOD = "POST";
     private static final String GET_METHOD  = "GET";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackTelemetryService openstackTelemetryService;
 
     private WebTarget target = null;
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/StatsFlowRuleManager.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/StatsFlowRuleManager.java
index f1318de..5ffd40c 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/StatsFlowRuleManager.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/impl/StatsFlowRuleManager.java
@@ -17,14 +17,6 @@
 
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
 import org.onlab.packet.MacAddress;
@@ -71,6 +63,12 @@
 import org.onosproject.openstacktelemetry.api.StatsFlowRuleAdminService;
 import org.onosproject.openstacktelemetry.api.StatsInfo;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -115,8 +113,7 @@
 /**
  * Flow rule manager for network statistics of a VM.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = StatsFlowRuleAdminService.class)
 public class StatsFlowRuleManager implements StatsFlowRuleAdminService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -155,59 +152,59 @@
 
     private static final boolean RECOVER_FROM_FAILURE = true;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortService instPortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackTelemetryService telemetryService;
 
-    @Property(name = REVERSE_PATH_STATS, boolValue = DEFAULT_REVERSE_PATH_STATS,
-            label = "A flag which indicates whether to install the rules for " +
-                    "collecting the flow-based stats for reversed path.")
+    //@Property(name = REVERSE_PATH_STATS, boolValue = DEFAULT_REVERSE_PATH_STATS,
+    //        label = "A flag which indicates whether to install the rules for " +
+    //                "collecting the flow-based stats for reversed path.")
     private boolean reversePathStats = DEFAULT_REVERSE_PATH_STATS;
 
-    @Property(name = EGRESS_STATS, boolValue = DEFAULT_EGRESS_STATS,
-            label = "A flag which indicates whether to install the rules for " +
-                    "collecting the flow-based stats for egress port.")
+    //@Property(name = EGRESS_STATS, boolValue = DEFAULT_EGRESS_STATS,
+    //        label = "A flag which indicates whether to install the rules for " +
+    //                "collecting the flow-based stats for egress port.")
     private boolean egressStats = DEFAULT_EGRESS_STATS;
 
-    @Property(name = PORT_STATS, boolValue = DEFAULT_PORT_STATS,
-            label = "A flag which indicates whether to collect port TX & RX stats.")
+    //@Property(name = PORT_STATS, boolValue = DEFAULT_PORT_STATS,
+    //        label = "A flag which indicates whether to collect port TX & RX stats.")
     private boolean portStats = DEFAULT_PORT_STATS;
 
-    @Property(name = MONITOR_OVERLAY, boolValue = DEFAULT_MONITOR_OVERLAY,
-            label = "A flag which indicates whether to monitor overlay network port stats.")
+    //@Property(name = MONITOR_OVERLAY, boolValue = DEFAULT_MONITOR_OVERLAY,
+    //        label = "A flag which indicates whether to monitor overlay network port stats.")
     private boolean monitorOverlay = DEFAULT_MONITOR_OVERLAY;
 
-    @Property(name = MONITOR_UNDERLAY, boolValue = DEFAULT_MONITOR_UNDERLAY,
-            label = "A flag which indicates whether to monitor underlay network port stats.")
+    //@Property(name = MONITOR_UNDERLAY, boolValue = DEFAULT_MONITOR_UNDERLAY,
+    //        label = "A flag which indicates whether to monitor underlay network port stats.")
     private boolean monitorUnderlay = DEFAULT_MONITOR_UNDERLAY;
 
     private ApplicationId telemetryAppId;
diff --git a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/web/OpenstackTelemetryCodecRegister.java b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/web/OpenstackTelemetryCodecRegister.java
index 5b3ec7e..c8bfeb5 100644
--- a/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/web/OpenstackTelemetryCodecRegister.java
+++ b/apps/openstacktelemetry/app/src/main/java/org/onosproject/openstacktelemetry/web/OpenstackTelemetryCodecRegister.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.openstacktelemetry.web;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.codec.CodecService;
 import org.onosproject.openstacktelemetry.api.FlowInfo;
 import org.onosproject.openstacktelemetry.api.StatsFlowRule;
@@ -38,7 +38,7 @@
 
     private final org.slf4j.Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CodecService codecService;
 
     @Activate
diff --git a/apps/openstacktroubleshoot/app/src/main/java/org/onosproject/openstacktroubleshoot/impl/OpenstackTroubleshootManager.java b/apps/openstacktroubleshoot/app/src/main/java/org/onosproject/openstacktroubleshoot/impl/OpenstackTroubleshootManager.java
index 1b1cdf8..c2f4b22 100644
--- a/apps/openstacktroubleshoot/app/src/main/java/org/onosproject/openstacktroubleshoot/impl/OpenstackTroubleshootManager.java
+++ b/apps/openstacktroubleshoot/app/src/main/java/org/onosproject/openstacktroubleshoot/impl/OpenstackTroubleshootManager.java
@@ -16,12 +16,6 @@
 package org.onosproject.openstacktroubleshoot.impl;
 
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.DeserializationException;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.ICMP;
@@ -65,6 +59,11 @@
 import org.onosproject.store.service.ConsistentMap;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -100,8 +99,7 @@
 /**
  * Implementation of openstack troubleshoot app.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = OpenstackTroubleshootService.class)
 public class OpenstackTroubleshootManager implements OpenstackTroubleshootService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -120,37 +118,37 @@
 
     private static final String ICMP_COUNTER_NAME = "icmp-id-counter";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNetworkService osNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackFlowRuleService osFlowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InstancePortService instancePortService;
 
     private final ExecutorService eventExecutor = newSingleThreadScheduledExecutor(
diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/impl/DistributedOpenstackVtapStore.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/impl/DistributedOpenstackVtapStore.java
index 141af0b..f8897e8 100644
--- a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/impl/DistributedOpenstackVtapStore.java
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/impl/DistributedOpenstackVtapStore.java
@@ -18,12 +18,6 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.net.DefaultAnnotations;
 import org.onosproject.net.DeviceId;
@@ -42,6 +36,11 @@
 import org.onosproject.store.service.MapEventListener;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Comparator;
@@ -63,14 +62,13 @@
 /**
  * Manages the inventory of users using a {@code ConsistentMap}.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = OpenstackVtapStore.class)
 public class DistributedOpenstackVtapStore
         extends AbstractStore<OpenstackVtapEvent, OpenstackVtapStoreDelegate>
         implements OpenstackVtapStore {
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private ConsistentMap<OpenstackVtapId, DefaultOpenstackVtap> vTapConsistentMap;
diff --git a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/impl/OpenstackVtapManager.java b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/impl/OpenstackVtapManager.java
index 02a6579..426e4cb 100644
--- a/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/impl/OpenstackVtapManager.java
+++ b/apps/openstackvtap/app/src/main/java/org/onosproject/openstackvtap/impl/OpenstackVtapManager.java
@@ -19,12 +19,6 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
 import org.onlab.packet.VlanId;
@@ -83,6 +77,11 @@
 import org.onosproject.openstackvtap.api.OpenstackVtapStore;
 import org.onosproject.openstackvtap.api.OpenstackVtapStoreDelegate;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.List;
@@ -121,45 +120,44 @@
 /**
  * Provides basic implementation of the user APIs.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = { OpenstackVtapService.class, OpenstackVtapAdminService.class })
 public class OpenstackVtapManager
         extends AbstractListenerManager<OpenstackVtapEvent, OpenstackVtapListener>
         implements OpenstackVtapService, OpenstackVtapAdminService {
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected GroupService groupService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackVtapStore store;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenstackNodeService osNodeService;
 
     public static final String APP_ID = "org.onosproject.openstackvtap";
diff --git a/apps/optical-model/src/main/java/org/onosproject/net/optical/cli/AddOpticalIntentCommand.java b/apps/optical-model/src/main/java/org/onosproject/net/optical/cli/AddOpticalIntentCommand.java
index 07f9cc1..79433c3 100644
--- a/apps/optical-model/src/main/java/org/onosproject/net/optical/cli/AddOpticalIntentCommand.java
+++ b/apps/optical-model/src/main/java/org/onosproject/net/optical/cli/AddOpticalIntentCommand.java
@@ -16,9 +16,10 @@
 package org.onosproject.net.optical.cli;
 
 import com.google.common.collect.ImmutableMap;
-import org.apache.karaf.shell.commands.Argument;
-import org.apache.karaf.shell.commands.Command;
-import org.apache.karaf.shell.commands.Option;
+import org.apache.karaf.shell.api.action.Argument;
+import org.apache.karaf.shell.api.action.Command;
+import org.apache.karaf.shell.api.action.Option;
+import org.apache.karaf.shell.api.action.lifecycle.Service;
 import org.onosproject.cli.app.AllApplicationNamesCompleter;
 import org.onosproject.cli.net.ConnectPointCompleter;
 import org.onosproject.cli.net.ConnectivityIntentCommand;
@@ -42,6 +43,7 @@
 /**
  * Installs optical connectivity or circuit intents, depending on given port types.
  */
+@Service
 @Command(scope = "onos", name = "add-optical-intent",
         description = "Installs optical connectivity intent")
 public class AddOpticalIntentCommand extends ConnectivityIntentCommand {
@@ -142,7 +144,7 @@
 
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         IntentService service = get(IntentService.class);
         DeviceService deviceService = get(DeviceService.class);
         ConnectPoint ingress = createConnectPoint(ingressString);
diff --git a/apps/optical-model/src/main/java/org/onosproject/net/optical/cli/OpticalPortsListCommand.java b/apps/optical-model/src/main/java/org/onosproject/net/optical/cli/OpticalPortsListCommand.java
index 448217c..302e05f 100644
--- a/apps/optical-model/src/main/java/org/onosproject/net/optical/cli/OpticalPortsListCommand.java
+++ b/apps/optical-model/src/main/java/org/onosproject/net/optical/cli/OpticalPortsListCommand.java
@@ -16,7 +16,7 @@
 package org.onosproject.net.optical.cli;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
-import org.apache.karaf.shell.commands.Command;
+import org.apache.karaf.shell.api.action.Command;
 import org.onlab.util.Frequency;
 import org.onosproject.cli.net.DevicePortsListCommand;
 import org.onosproject.net.Device;
@@ -50,7 +50,7 @@
     private static final EnumSet<Port.Type> OPTICAL = EnumSet.of(Type.OCH, Type.ODUCLT, Type.OMS, Type.OTU);
 
     @Override
-    protected void execute() {
+    protected void doExecute() {
         DeviceService service = opticalView(get(DeviceService.class));
         if (uri == null) {
             if (outputJson()) {
diff --git a/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalCircuitIntentCompiler.java b/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalCircuitIntentCompiler.java
index 40d88f4..bb74d77 100644
--- a/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalCircuitIntentCompiler.java
+++ b/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalCircuitIntentCompiler.java
@@ -16,15 +16,9 @@
 package org.onosproject.net.optical.intent.impl.compiler;
 
 import com.google.common.base.Strings;
-
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Sets;
 import org.apache.commons.lang3.tuple.Pair;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.ApplicationId;
@@ -55,23 +49,26 @@
 import org.onosproject.net.intent.IntentExtensionService;
 import org.onosproject.net.intent.IntentId;
 import org.onosproject.net.intent.IntentService;
+import org.onosproject.net.intent.IntentSetMultimap;
 import org.onosproject.net.intent.OpticalCircuitIntent;
 import org.onosproject.net.intent.OpticalConnectivityIntent;
 import org.onosproject.net.intent.PathIntent;
 import org.onosproject.net.optical.OchPort;
 import org.onosproject.net.optical.OduCltPort;
-import org.onosproject.net.intent.IntentSetMultimap;
-import org.onosproject.net.resource.ResourceAllocation;
 import org.onosproject.net.resource.Resource;
+import org.onosproject.net.resource.ResourceAllocation;
 import org.onosproject.net.resource.ResourceService;
 import org.onosproject.net.resource.Resources;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Sets;
-
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
@@ -96,33 +93,33 @@
 
     private static final int DEFAULT_MAX_CAPACITY = 10;
 
-    @Property(name = "maxCapacity", intValue = DEFAULT_MAX_CAPACITY,
-            label = "Maximum utilization of an optical connection.")
+    //@Property(name = "maxCapacity", intValue = DEFAULT_MAX_CAPACITY,
+    //        label = "Maximum utilization of an optical connection.")
 
     private int maxCapacity = DEFAULT_MAX_CAPACITY;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentExtensionService intentManager;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ResourceService resourceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentSetMultimap intentSetMultimap;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
     private ApplicationId appId;
diff --git a/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalConnectivityIntentCompiler.java b/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalConnectivityIntentCompiler.java
index 3612273..5a76aef 100644
--- a/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalConnectivityIntentCompiler.java
+++ b/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalConnectivityIntentCompiler.java
@@ -19,11 +19,11 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.graph.ScalarWeight;
 import org.onlab.graph.Weight;
 import org.onosproject.net.AnnotationKeys;
@@ -87,16 +87,16 @@
     private static final ProviderId PROVIDER_ID = new ProviderId("opticalConnectivityIntent",
             "org.onosproject.net.optical.intent");
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentExtensionService intentManager;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TopologyService topologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ResourceService resourceService;
 
     @Activate
diff --git a/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalOduIntentCompiler.java b/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalOduIntentCompiler.java
index e45bfb1..4a5fade 100644
--- a/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalOduIntentCompiler.java
+++ b/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalOduIntentCompiler.java
@@ -16,11 +16,11 @@
 package org.onosproject.net.optical.intent.impl.compiler;
 
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.graph.ScalarWeight;
 import org.onlab.graph.Weight;
 import org.onosproject.core.ApplicationId;
@@ -90,19 +90,19 @@
 
     private static final Logger log = LoggerFactory.getLogger(OpticalOduIntentCompiler.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentExtensionService intentManager;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TopologyService topologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ResourceService resourceService;
 
     private ApplicationId appId;
diff --git a/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalPathIntentCompiler.java b/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalPathIntentCompiler.java
index 9786cd4..d269843 100644
--- a/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalPathIntentCompiler.java
+++ b/apps/optical-model/src/main/java/org/onosproject/net/optical/intent/impl/compiler/OpticalPathIntentCompiler.java
@@ -17,11 +17,11 @@
 
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Lists;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.net.ConnectPoint;
@@ -59,13 +59,13 @@
 
     private static final Logger log = LoggerFactory.getLogger(OpticalPathIntentCompiler.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentExtensionService intentManager;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService = new DeviceServiceAdapter();
 
     private ApplicationId appId;
diff --git a/apps/optical-model/src/main/java/org/onosproject/net/optical/internal/OpticalModelLoader.java b/apps/optical-model/src/main/java/org/onosproject/net/optical/internal/OpticalModelLoader.java
index 9045e24..ecdbebd 100644
--- a/apps/optical-model/src/main/java/org/onosproject/net/optical/internal/OpticalModelLoader.java
+++ b/apps/optical-model/src/main/java/org/onosproject/net/optical/internal/OpticalModelLoader.java
@@ -17,11 +17,11 @@
 
 import static org.onosproject.net.config.basics.SubjectFactories.CONNECT_POINT_SUBJECT_FACTORY;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.config.ConfigFactory;
 import org.onosproject.net.config.NetworkConfigRegistry;
@@ -39,10 +39,10 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PortConfigOperatorRegistry portOperatorRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry netcfgRegistry;
 
 
diff --git a/apps/p4-tutorial/mytunnel/src/main/java/org/onosproject/p4tutorial/mytunnel/MyTunnelApp.java b/apps/p4-tutorial/mytunnel/src/main/java/org/onosproject/p4tutorial/mytunnel/MyTunnelApp.java
index 5acc434..4a92716 100644
--- a/apps/p4-tutorial/mytunnel/src/main/java/org/onosproject/p4tutorial/mytunnel/MyTunnelApp.java
+++ b/apps/p4-tutorial/mytunnel/src/main/java/org/onosproject/p4tutorial/mytunnel/MyTunnelApp.java
@@ -17,11 +17,11 @@
 package org.onosproject.p4tutorial.mytunnel;
 
 import com.google.common.collect.Lists;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.IpAddress;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -82,16 +82,16 @@
     // ONOS core services needed by this application.
     //--------------------------------------------------------------------------
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private TopologyService topologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private HostService hostService;
 
     //--------------------------------------------------------------------------
diff --git a/apps/p4-tutorial/pipeconf/src/main/java/org/onosproject/p4tutorial/pipeconf/PipeconfFactory.java b/apps/p4-tutorial/pipeconf/src/main/java/org/onosproject/p4tutorial/pipeconf/PipeconfFactory.java
index f0078ec..b216aff 100644
--- a/apps/p4-tutorial/pipeconf/src/main/java/org/onosproject/p4tutorial/pipeconf/PipeconfFactory.java
+++ b/apps/p4-tutorial/pipeconf/src/main/java/org/onosproject/p4tutorial/pipeconf/PipeconfFactory.java
@@ -16,11 +16,11 @@
 
 package org.onosproject.p4tutorial.pipeconf;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.driver.pipeline.DefaultSingleTablePipeline;
 import org.onosproject.net.behaviour.Pipeliner;
 import org.onosproject.net.device.PortStatisticsDiscovery;
@@ -52,7 +52,7 @@
     private static final URL P4INFO_URL = PipeconfFactory.class.getResource("/mytunnel.p4info");
     private static final URL BMV2_JSON_URL = PipeconfFactory.class.getResource("/mytunnel.json");
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private PiPipeconfService piPipeconfService;
 
     @Activate
diff --git a/apps/packet-stats/src/main/java/org/onosproject/packetstats/PacketStatistics.java b/apps/packet-stats/src/main/java/org/onosproject/packetstats/PacketStatistics.java
index 6d3f77f..05800f2 100644
--- a/apps/packet-stats/src/main/java/org/onosproject/packetstats/PacketStatistics.java
+++ b/apps/packet-stats/src/main/java/org/onosproject/packetstats/PacketStatistics.java
@@ -16,11 +16,11 @@
 
 package org.onosproject.packetstats;
 import com.codahale.metrics.Counter;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IPv4;
 import org.onlab.packet.UDP;
@@ -46,21 +46,21 @@
 @Component(immediate = true)
 public class  PacketStatistics {
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MetricsService metricService;
 
     private ReactivePacketProcessor processor = new ReactivePacketProcessor();
diff --git a/apps/packet-stats/src/main/java/org/onosproject/packetstats/PacketStatsUiComponent.java b/apps/packet-stats/src/main/java/org/onosproject/packetstats/PacketStatsUiComponent.java
index 7846756..e9982a2 100644
--- a/apps/packet-stats/src/main/java/org/onosproject/packetstats/PacketStatsUiComponent.java
+++ b/apps/packet-stats/src/main/java/org/onosproject/packetstats/PacketStatsUiComponent.java
@@ -18,11 +18,11 @@
 
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -42,7 +42,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // List of application views
diff --git a/apps/pathpainter/src/main/java/org/onosproject/pathpainter/PathPainter.java b/apps/pathpainter/src/main/java/org/onosproject/pathpainter/PathPainter.java
index 64c2c7b..bf97b3c 100644
--- a/apps/pathpainter/src/main/java/org/onosproject/pathpainter/PathPainter.java
+++ b/apps/pathpainter/src/main/java/org/onosproject/pathpainter/PathPainter.java
@@ -16,11 +16,11 @@
 package org.onosproject.pathpainter;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -43,7 +43,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // List of application views
diff --git a/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java b/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java
index e7ef935..d9a61f0 100644
--- a/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java
+++ b/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java
@@ -15,29 +15,14 @@
  */
 package org.onosproject.pce.pceservice;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Sets;
 import org.onlab.graph.ScalarWeight;
 import org.onlab.graph.Weight;
-import org.onosproject.net.DisjointPath;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
-import java.util.Set;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.util.Bandwidth;
+import org.onosproject.bandwidthmgr.api.BandwidthMgmtService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.core.IdGenerator;
@@ -51,38 +36,38 @@
 import org.onosproject.incubator.net.tunnel.TunnelName;
 import org.onosproject.incubator.net.tunnel.TunnelService;
 import org.onosproject.mastership.MastershipService;
-import org.onosproject.net.LinkKey;
-import org.onosproject.net.config.ConfigFactory;
-import org.onosproject.net.config.NetworkConfigRegistry;
-import org.onosproject.net.config.NetworkConfigService;
 import org.onosproject.net.DefaultAnnotations;
 import org.onosproject.net.DefaultAnnotations.Builder;
 import org.onosproject.net.DefaultPath;
 import org.onosproject.net.Device;
 import org.onosproject.net.DeviceId;
+import org.onosproject.net.DisjointPath;
 import org.onosproject.net.Link;
+import org.onosproject.net.LinkKey;
+import org.onosproject.net.MastershipRole;
 import org.onosproject.net.NetworkResource;
 import org.onosproject.net.Path;
+import org.onosproject.net.config.ConfigFactory;
+import org.onosproject.net.config.NetworkConfigRegistry;
+import org.onosproject.net.config.NetworkConfigService;
 import org.onosproject.net.config.basics.SubjectFactories;
 import org.onosproject.net.device.DeviceService;
 import org.onosproject.net.intent.Constraint;
 import org.onosproject.net.link.LinkEvent;
-import org.onosproject.net.MastershipRole;
-import org.onosproject.bandwidthmgr.api.BandwidthMgmtService;
-import org.onosproject.net.topology.LinkWeigher;
-import org.onosproject.pce.pceservice.constraint.CapabilityConstraint;
-import org.onosproject.pce.pceservice.constraint.CapabilityConstraint.CapabilityType;
-import org.onosproject.pce.pceservice.constraint.CostConstraint;
-import org.onosproject.pce.pceservice.constraint.PceBandwidthConstraint;
-import org.onosproject.pce.pceservice.constraint.SharedBandwidthConstraint;
 import org.onosproject.net.resource.Resource;
 import org.onosproject.net.resource.ResourceAllocation;
+import org.onosproject.net.topology.LinkWeigher;
 import org.onosproject.net.topology.PathService;
 import org.onosproject.net.topology.TopologyEdge;
 import org.onosproject.net.topology.TopologyEvent;
 import org.onosproject.net.topology.TopologyListener;
 import org.onosproject.net.topology.TopologyService;
 import org.onosproject.pce.pceservice.api.PceService;
+import org.onosproject.pce.pceservice.constraint.CapabilityConstraint;
+import org.onosproject.pce.pceservice.constraint.CapabilityConstraint.CapabilityType;
+import org.onosproject.pce.pceservice.constraint.CostConstraint;
+import org.onosproject.pce.pceservice.constraint.PceBandwidthConstraint;
+import org.onosproject.pce.pceservice.constraint.SharedBandwidthConstraint;
 import org.onosproject.pce.pcestore.PcePathInfo;
 import org.onosproject.pce.pcestore.api.PceStore;
 import org.onosproject.pcep.api.DeviceCapability;
@@ -91,31 +76,43 @@
 import org.onosproject.store.service.DistributedSet;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.Sets;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
 
+import static com.google.common.base.Preconditions.checkNotNull;
 import static org.onosproject.incubator.net.tunnel.Tunnel.State.INIT;
 import static org.onosproject.incubator.net.tunnel.Tunnel.State.UNSTABLE;
 import static org.onosproject.incubator.net.tunnel.Tunnel.Type.MPLS;
 import static org.onosproject.pce.pceservice.LspType.WITH_SIGNALLING;
 import static org.onosproject.pce.pceservice.PcepAnnotationKeys.BANDWIDTH;
+import static org.onosproject.pce.pceservice.PcepAnnotationKeys.COST_TYPE;
+import static org.onosproject.pce.pceservice.PcepAnnotationKeys.DELEGATE;
 import static org.onosproject.pce.pceservice.PcepAnnotationKeys.LOCAL_LSP_ID;
 import static org.onosproject.pce.pceservice.PcepAnnotationKeys.LSP_SIG_TYPE;
+import static org.onosproject.pce.pceservice.PcepAnnotationKeys.PCC_TUNNEL_ID;
 import static org.onosproject.pce.pceservice.PcepAnnotationKeys.PCE_INIT;
 import static org.onosproject.pce.pceservice.PcepAnnotationKeys.PLSP_ID;
-import static org.onosproject.pce.pceservice.PcepAnnotationKeys.PCC_TUNNEL_ID;
-import static org.onosproject.pce.pceservice.PcepAnnotationKeys.DELEGATE;
-import static org.onosproject.pce.pceservice.PcepAnnotationKeys.COST_TYPE;
 
 /**
  * Implementation of PCE service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = PceManager.class)
 public class PceManager implements PceService {
     private static final Logger log = LoggerFactory.getLogger(PceManager.class);
 
@@ -134,37 +131,37 @@
     private IdGenerator localLspIdIdGen;
     protected DistributedSet<Short> localLspIdFreeList;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PathService pathService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PceStore pceStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TunnelService tunnelService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService netCfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TopologyService topologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected BandwidthMgmtService bandwidthMgmtService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry netConfigRegistry;
 
     private TunnelListener listener = new InnerTunnelListener();
diff --git a/apps/pce/app/src/main/java/org/onosproject/pce/pcestore/DistributedPceStore.java b/apps/pce/app/src/main/java/org/onosproject/pce/pcestore/DistributedPceStore.java
index 91923ab..998f87e 100644
--- a/apps/pce/app/src/main/java/org/onosproject/pce/pcestore/DistributedPceStore.java
+++ b/apps/pce/app/src/main/java/org/onosproject/pce/pcestore/DistributedPceStore.java
@@ -16,13 +16,6 @@
 package org.onosproject.pce.pcestore;
 
 import com.google.common.collect.ImmutableSet;
-import java.util.Arrays;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.incubator.net.tunnel.TunnelId;
 import org.onosproject.pce.pceservice.ExplicitPathInfo;
@@ -37,9 +30,15 @@
 import org.onosproject.store.service.DistributedSet;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.Arrays;
 import java.util.List;
 
 import static com.google.common.base.Preconditions.checkNotNull;
@@ -47,8 +46,7 @@
 /**
  * Manages the pool of available labels to devices, links and tunnels.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = PceStore.class)
 public class DistributedPceStore implements PceStore {
     private static final String PATH_INFO_NULL = "Path Info cannot be null";
     private static final String PCECC_TUNNEL_INFO_NULL = "PCECC Tunnel Info cannot be null";
@@ -56,7 +54,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     //Mapping tunnel name with Disjoint paths
diff --git a/apps/pce/bandwidthmgmt/src/main/java/org/onosproject/bandwidthmgr/BandwidthManager.java b/apps/pce/bandwidthmgmt/src/main/java/org/onosproject/bandwidthmgr/BandwidthManager.java
index 4316626..a23c16e 100644
--- a/apps/pce/bandwidthmgmt/src/main/java/org/onosproject/bandwidthmgr/BandwidthManager.java
+++ b/apps/pce/bandwidthmgmt/src/main/java/org/onosproject/bandwidthmgr/BandwidthManager.java
@@ -15,16 +15,15 @@
  */
 package org.onosproject.bandwidthmgr;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-import org.onosproject.net.Link;
-import org.onosproject.net.LinkKey;
 import org.onosproject.bandwidthmgr.api.BandwidthMgmtService;
 import org.onosproject.bandwidthmgr.api.BandwidthMgmtStore;
+import org.onosproject.net.Link;
+import org.onosproject.net.LinkKey;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -35,12 +34,11 @@
 /**
  * Implementation of PCE service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = BandwidthMgmtService.class)
 public class BandwidthManager implements BandwidthMgmtService {
     private static final Logger log = LoggerFactory.getLogger(BandwidthManager.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected BandwidthMgmtStore store;
 
     @Activate
diff --git a/apps/pce/bandwidthmgmt/src/main/java/org/onosproject/bandwidthmgr/DistributedBandwidthMgmtStore.java b/apps/pce/bandwidthmgmt/src/main/java/org/onosproject/bandwidthmgr/DistributedBandwidthMgmtStore.java
index 54c0191..50bad95 100644
--- a/apps/pce/bandwidthmgmt/src/main/java/org/onosproject/bandwidthmgr/DistributedBandwidthMgmtStore.java
+++ b/apps/pce/bandwidthmgmt/src/main/java/org/onosproject/bandwidthmgr/DistributedBandwidthMgmtStore.java
@@ -15,49 +15,45 @@
  */
 package org.onosproject.bandwidthmgr;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.onosproject.net.config.NetworkConfigEvent.Type.CONFIG_ADDED;
-import static org.onosproject.net.config.NetworkConfigEvent.Type.CONFIG_REMOVED;
-import static org.onosproject.net.config.NetworkConfigEvent.Type.CONFIG_UPDATED;
-
-import java.util.LinkedHashSet;
-import java.util.Set;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-
 import org.onlab.util.KryoNamespace;
+import org.onosproject.bandwidthmgr.api.BandwidthMgmtStore;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.LinkKey;
 import org.onosproject.net.config.NetworkConfigEvent;
 import org.onosproject.net.config.NetworkConfigListener;
 import org.onosproject.net.config.NetworkConfigService;
-import org.onosproject.bandwidthmgr.api.BandwidthMgmtStore;
 import org.onosproject.pcep.api.TeLinkConfig;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.ConsistentMap;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
-
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onosproject.net.config.NetworkConfigEvent.Type.CONFIG_ADDED;
+import static org.onosproject.net.config.NetworkConfigEvent.Type.CONFIG_REMOVED;
+import static org.onosproject.net.config.NetworkConfigEvent.Type.CONFIG_UPDATED;
+
 /**
  * Manages the pool of available labels to devices, links and tunnels.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = BandwidthMgmtStore.class)
 public class DistributedBandwidthMgmtStore implements BandwidthMgmtStore {
     private static final Logger log = LoggerFactory.getLogger(BandwidthManager.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService netCfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private InternalConfigListener cfgListener = new InternalConfigListener();
diff --git a/apps/pce/pcerest/src/main/java/org/onosproject/pcerest/PceCodecRegistrator.java b/apps/pce/pcerest/src/main/java/org/onosproject/pcerest/PceCodecRegistrator.java
index acfe5b4..be8686a 100644
--- a/apps/pce/pcerest/src/main/java/org/onosproject/pcerest/PceCodecRegistrator.java
+++ b/apps/pce/pcerest/src/main/java/org/onosproject/pcerest/PceCodecRegistrator.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.pcerest;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.codec.CodecService;
 import org.onosproject.pce.pceservice.PcePath;
 import org.slf4j.Logger;
@@ -33,7 +33,7 @@
 
     private static Logger log = LoggerFactory.getLogger(PceCodecRegistrator.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CodecService codecService;
 
     @Activate
diff --git a/apps/pce/pceweb/src/main/java/org/onosproject/pceweb/PceWebTopovComponent.java b/apps/pce/pceweb/src/main/java/org/onosproject/pceweb/PceWebTopovComponent.java
index d9bc252..a98e8b0 100644
--- a/apps/pce/pceweb/src/main/java/org/onosproject/pceweb/PceWebTopovComponent.java
+++ b/apps/pce/pceweb/src/main/java/org/onosproject/pceweb/PceWebTopovComponent.java
@@ -17,11 +17,11 @@
 package org.onosproject.pceweb;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -44,7 +44,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // List of application views
diff --git a/apps/pi-demo/common/src/main/java/org/onosproject/pi/demo/app/common/AbstractUpgradableFabricApp.java b/apps/pi-demo/common/src/main/java/org/onosproject/pi/demo/app/common/AbstractUpgradableFabricApp.java
index bd12b13..ac92028 100644
--- a/apps/pi-demo/common/src/main/java/org/onosproject/pi/demo/app/common/AbstractUpgradableFabricApp.java
+++ b/apps/pi-demo/common/src/main/java/org/onosproject/pi/demo/app/common/AbstractUpgradableFabricApp.java
@@ -22,11 +22,11 @@
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.app.ApplicationAdminService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -112,28 +112,28 @@
 
     private final String appName;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TopologyService topologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected GroupService groupService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private ApplicationAdminService appService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private PiPipeconfService piPipeconfService;
 
     private boolean appActive = false;
diff --git a/apps/pi-demo/ecmp/src/main/java/org/onosproject/pi/demo/app/ecmp/EcmpFabricApp.java b/apps/pi-demo/ecmp/src/main/java/org/onosproject/pi/demo/app/ecmp/EcmpFabricApp.java
index bb15afc..d8d7a1d 100644
--- a/apps/pi-demo/ecmp/src/main/java/org/onosproject/pi/demo/app/ecmp/EcmpFabricApp.java
+++ b/apps/pi-demo/ecmp/src/main/java/org/onosproject/pi/demo/app/ecmp/EcmpFabricApp.java
@@ -21,8 +21,8 @@
 import com.google.common.collect.Sets;
 import org.apache.commons.lang3.tuple.ImmutablePair;
 import org.apache.commons.lang3.tuple.Pair;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
 import org.onlab.packet.IpAddress;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.Host;
diff --git a/apps/pim/src/main/java/org/onosproject/pim/impl/PimApplication.java b/apps/pim/src/main/java/org/onosproject/pim/impl/PimApplication.java
index b8bb17b..8d76e31 100644
--- a/apps/pim/src/main/java/org/onosproject/pim/impl/PimApplication.java
+++ b/apps/pim/src/main/java/org/onosproject/pim/impl/PimApplication.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.pim.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IPv4;
 import org.onosproject.core.ApplicationId;
@@ -46,25 +46,25 @@
     private final Logger log = getLogger(getClass());
 
     // Used to get the appId
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     // Our application ID
     private static ApplicationId appId;
 
     // Register to receive PIM packets, used to send packets as well
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
     // Use the MulticastRouteService to manage incoming PIM Join/Prune state as well as
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MulticastRouteService ms;
 
     // Create an instance of the PIM packet handler
     protected PimPacketHandler pimPacketHandler;
 
     // Provide interfaces to the pimInterface manager as a result of Netconfig updates.
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PimInterfaceService pimInterfaceManager;
 
     private final PimPacketProcessor processor = new PimPacketProcessor();
diff --git a/apps/pim/src/main/java/org/onosproject/pim/impl/PimInterfaceManager.java b/apps/pim/src/main/java/org/onosproject/pim/impl/PimInterfaceManager.java
index 3c75c93..31dd0a9 100644
--- a/apps/pim/src/main/java/org/onosproject/pim/impl/PimInterfaceManager.java
+++ b/apps/pim/src/main/java/org/onosproject/pim/impl/PimInterfaceManager.java
@@ -17,19 +17,7 @@
 
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Maps;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.SafeRecurringTask;
-import org.onosproject.net.intf.Interface;
-import org.onosproject.net.intf.InterfaceEvent;
-import org.onosproject.net.intf.InterfaceListener;
-import org.onosproject.net.intf.InterfaceService;
-import org.onosproject.routeservice.Route;
-import org.onosproject.routeservice.RouteService;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Host;
 import org.onosproject.net.config.ConfigFactory;
@@ -38,11 +26,22 @@
 import org.onosproject.net.config.NetworkConfigRegistry;
 import org.onosproject.net.config.basics.SubjectFactories;
 import org.onosproject.net.host.HostService;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceEvent;
+import org.onosproject.net.intf.InterfaceListener;
+import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.mcast.McastEvent;
 import org.onosproject.net.mcast.McastListener;
 import org.onosproject.net.mcast.McastRoute;
 import org.onosproject.net.mcast.MulticastRouteService;
 import org.onosproject.net.packet.PacketService;
+import org.onosproject.routeservice.Route;
+import org.onosproject.routeservice.RouteService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Map;
@@ -58,8 +57,7 @@
  *
  * TODO: Do we need to add a ServiceListener?
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = PimInterfaceService.class)
 public class PimInterfaceManager implements PimInterfaceService {
 
     private final Logger log = getLogger(getClass());
@@ -83,22 +81,22 @@
 
     private final int joinTaskPeriod = 10000;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry networkConfig;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MulticastRouteService multicastRouteService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteService unicastRouteService;
 
     // Store PIM Interfaces in a map key'd by ConnectPoint
diff --git a/apps/proxyarp/src/main/java/org/onosproject/proxyarp/DefaultProxyArp.java b/apps/proxyarp/src/main/java/org/onosproject/proxyarp/DefaultProxyArp.java
index d8095bb..d07c008 100644
--- a/apps/proxyarp/src/main/java/org/onosproject/proxyarp/DefaultProxyArp.java
+++ b/apps/proxyarp/src/main/java/org/onosproject/proxyarp/DefaultProxyArp.java
@@ -16,11 +16,11 @@
 
 package org.onosproject.proxyarp;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.net.neighbour.DefaultNeighbourMessageHandler;
@@ -43,13 +43,13 @@
 
     private static final String APP_NAME = "org.onosproject.proxyarp";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EdgePortService edgeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NeighbourResolutionService neighbourResolutionService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     private ApplicationId appId;
diff --git a/apps/rabbitmq/src/main/java/org/onosproject/rabbitmq/listener/MQEventHandler.java b/apps/rabbitmq/src/main/java/org/onosproject/rabbitmq/listener/MQEventHandler.java
index 38c5f94..a6d54a5 100644
--- a/apps/rabbitmq/src/main/java/org/onosproject/rabbitmq/listener/MQEventHandler.java
+++ b/apps/rabbitmq/src/main/java/org/onosproject/rabbitmq/listener/MQEventHandler.java
@@ -21,11 +21,11 @@
 
 import java.util.concurrent.ExecutorService;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.net.device.DeviceEvent;
 import org.onosproject.net.device.DeviceListener;
 import org.onosproject.net.device.DeviceService;
@@ -62,13 +62,13 @@
     private static final String PROVIDER_NAME = MQConstants.ONOS_APP_NAME;
     private static final int PKT_PROC_PRIO = 1;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TopologyService topologyService;
 
     private MQService mqService;
diff --git a/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/ReactiveRoutingConfiguration.java b/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/ReactiveRoutingConfiguration.java
index 8d01036..3288d7d 100644
--- a/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/ReactiveRoutingConfiguration.java
+++ b/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/ReactiveRoutingConfiguration.java
@@ -20,12 +20,6 @@
 import com.googlecode.concurrenttrees.radix.node.concrete.DefaultByteArrayNodeFactory;
 import com.googlecode.concurrenttrees.radixinverted.ConcurrentInvertedRadixTree;
 import com.googlecode.concurrenttrees.radixinverted.InvertedRadixTree;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.Ip4Address;
 import org.onlab.packet.Ip6Address;
 import org.onlab.packet.IpAddress;
@@ -33,8 +27,6 @@
 import org.onlab.packet.MacAddress;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.net.intf.Interface;
-import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.config.ConfigFactory;
 import org.onosproject.net.config.NetworkConfigEvent;
@@ -42,8 +34,15 @@
 import org.onosproject.net.config.NetworkConfigRegistry;
 import org.onosproject.net.config.NetworkConfigService;
 import org.onosproject.net.config.basics.SubjectFactories;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.routing.RoutingService;
 import org.onosproject.routing.config.BgpConfig;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -57,23 +56,22 @@
 /**
  * Reactive routing configuration manager.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = ReactiveRoutingConfigurationService.class)
 public class ReactiveRoutingConfiguration implements
         ReactiveRoutingConfigurationService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry registry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
     private Set<IpAddress> gatewayIpAddresses = new HashSet<>();
diff --git a/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/SdnIpReactiveRouting.java b/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/SdnIpReactiveRouting.java
index 906e34d..f05d63b 100644
--- a/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/SdnIpReactiveRouting.java
+++ b/apps/reactive-routing/src/main/java/org/onosproject/reactive/routing/SdnIpReactiveRouting.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.reactive.routing;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.ARP;
 import org.onlab.packet.EthType;
 import org.onlab.packet.Ethernet;
@@ -74,25 +74,25 @@
     private static final String APP_NAME = "org.onosproject.reactive.routing";
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteService routeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentSynchronizationService intentSynchronizer;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ReactiveRoutingConfigurationService config;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
     private ApplicationId appId;
diff --git a/apps/restconf/restconfmgr/src/main/java/org/onosproject/restconf/restconfmanager/RestconfManager.java b/apps/restconf/restconfmgr/src/main/java/org/onosproject/restconf/restconfmanager/RestconfManager.java
index 8c8d58f..d37b466 100644
--- a/apps/restconf/restconfmgr/src/main/java/org/onosproject/restconf/restconfmanager/RestconfManager.java
+++ b/apps/restconf/restconfmgr/src/main/java/org/onosproject/restconf/restconfmanager/RestconfManager.java
@@ -18,12 +18,6 @@
 
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.glassfish.jersey.server.ChunkedOutput;
 import org.onosproject.config.DynamicConfigService;
 import org.onosproject.config.FailedException;
@@ -45,6 +39,11 @@
 import org.onosproject.yang.model.RpcInput;
 import org.onosproject.yang.model.RpcOutput;
 import org.onosproject.yang.model.SchemaId;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -79,8 +78,7 @@
  *    on the YANG data objects (i.e., resource id, yang data node).
  */
 
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = RestconfService.class)
 public class RestconfManager implements RestconfService {
 
     private static final String RESTCONF_ROOT = "/onos/restconf";
@@ -89,7 +87,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DynamicConfigService dynamicConfigService;
 
     private ExecutorService workerThreadPool;
diff --git a/apps/roadm/src/main/java/org/onosproject/roadm/DistributedRoadmStore.java b/apps/roadm/src/main/java/org/onosproject/roadm/DistributedRoadmStore.java
index 7cd2ea4..c137c13 100644
--- a/apps/roadm/src/main/java/org/onosproject/roadm/DistributedRoadmStore.java
+++ b/apps/roadm/src/main/java/org/onosproject/roadm/DistributedRoadmStore.java
@@ -15,37 +15,34 @@
  */
 package org.onosproject.roadm;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.PortNumber;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.ConsistentMap;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-
 import java.util.HashMap;
 import java.util.Map;
 
 /**
  * Manages the port target powers for ROADM devices.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = RoadmStore.class)
 public class DistributedRoadmStore implements RoadmStore {
     private static Logger log = LoggerFactory.getLogger(DistributedRoadmStore.class);
 
     private ConsistentMap<DeviceId, Map<PortNumber, Long>> distPowerMap;
     private Map<DeviceId, Map<PortNumber, Long>> powerMap;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     @Activate
diff --git a/apps/roadm/src/main/java/org/onosproject/roadm/RoadmComponent.java b/apps/roadm/src/main/java/org/onosproject/roadm/RoadmComponent.java
index 5056b71..0526c78 100644
--- a/apps/roadm/src/main/java/org/onosproject/roadm/RoadmComponent.java
+++ b/apps/roadm/src/main/java/org/onosproject/roadm/RoadmComponent.java
@@ -16,11 +16,11 @@
 package org.onosproject.roadm;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -44,7 +44,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // List of application views
diff --git a/apps/roadm/src/main/java/org/onosproject/roadm/RoadmManager.java b/apps/roadm/src/main/java/org/onosproject/roadm/RoadmManager.java
index d5bd501..2abe2a6 100644
--- a/apps/roadm/src/main/java/org/onosproject/roadm/RoadmManager.java
+++ b/apps/roadm/src/main/java/org/onosproject/roadm/RoadmManager.java
@@ -17,12 +17,6 @@
 
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Range;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.net.ChannelSpacing;
@@ -36,8 +30,8 @@
 import org.onosproject.net.PortNumber;
 import org.onosproject.net.behaviour.LambdaQuery;
 import org.onosproject.net.behaviour.PowerConfig;
-import org.onosproject.net.behaviour.protection.ProtectionConfigBehaviour;
 import org.onosproject.net.behaviour.protection.ProtectedTransportEndpointState;
+import org.onosproject.net.behaviour.protection.ProtectionConfigBehaviour;
 import org.onosproject.net.behaviour.protection.TransportEndpointState;
 import org.onosproject.net.device.DeviceEvent;
 import org.onosproject.net.device.DeviceListener;
@@ -53,7 +47,11 @@
 import org.onosproject.net.flow.TrafficTreatment;
 import org.onosproject.net.flow.criteria.Criteria;
 import org.onosproject.net.flow.instructions.Instructions;
-
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -74,8 +72,7 @@
 /**
  * Application for monitoring and configuring ROADM devices.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = RoadmService.class)
 public class RoadmManager implements RoadmService {
 
     private static final String APP_NAME = "org.onosproject.roadm";
@@ -85,16 +82,16 @@
 
     private DeviceListener deviceListener = new InternalDeviceListener();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RoadmStore roadmStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
     @Activate
diff --git a/apps/route-service/app/src/main/java/org/onosproject/routeservice/impl/ConfigurationRouteSource.java b/apps/route-service/app/src/main/java/org/onosproject/routeservice/impl/ConfigurationRouteSource.java
index eb6733f..bad5b92 100644
--- a/apps/route-service/app/src/main/java/org/onosproject/routeservice/impl/ConfigurationRouteSource.java
+++ b/apps/route-service/app/src/main/java/org/onosproject/routeservice/impl/ConfigurationRouteSource.java
@@ -16,11 +16,11 @@
 
 package org.onosproject.routeservice.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.routeservice.Route;
 import org.onosproject.routeservice.RouteAdminService;
@@ -40,10 +40,10 @@
 @Component(immediate = true)
 public class ConfigurationRouteSource {
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry netcfgRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteAdminService routeService;
 
     private final ConfigFactory<ApplicationId, RouteConfig> routeConfigFactory =
diff --git a/apps/route-service/app/src/main/java/org/onosproject/routeservice/impl/RouteManager.java b/apps/route-service/app/src/main/java/org/onosproject/routeservice/impl/RouteManager.java
index d45415b..afa9cd6 100644
--- a/apps/route-service/app/src/main/java/org/onosproject/routeservice/impl/RouteManager.java
+++ b/apps/route-service/app/src/main/java/org/onosproject/routeservice/impl/RouteManager.java
@@ -17,15 +17,13 @@
 package org.onosproject.routeservice.impl;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
 import org.onosproject.cluster.ClusterService;
+import org.onosproject.net.Host;
+import org.onosproject.net.host.HostEvent;
+import org.onosproject.net.host.HostListener;
+import org.onosproject.net.host.HostService;
 import org.onosproject.routeservice.InternalRouteEvent;
 import org.onosproject.routeservice.ResolvedRoute;
 import org.onosproject.routeservice.Route;
@@ -38,11 +36,12 @@
 import org.onosproject.routeservice.RouteStore;
 import org.onosproject.routeservice.RouteStoreDelegate;
 import org.onosproject.routeservice.RouteTableId;
-import org.onosproject.net.Host;
-import org.onosproject.net.host.HostEvent;
-import org.onosproject.net.host.HostListener;
-import org.onosproject.net.host.HostService;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -67,8 +66,7 @@
 /**
  * Implementation of the unicast route service.
  */
-@Service
-@Component
+@Component(service = { RouteService.class, RouteAdminService.class })
 public class RouteManager implements RouteService, RouteAdminService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -76,16 +74,16 @@
     private RouteStoreDelegate delegate = new InternalRouteStoreDelegate();
     private InternalHostListener hostListener = new InternalHostListener();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteStore routeStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private ResolvedRouteStore resolvedRouteStore;
diff --git a/apps/route-service/app/src/main/java/org/onosproject/routeservice/rest/RouteServiceCodecRegistrator.java b/apps/route-service/app/src/main/java/org/onosproject/routeservice/rest/RouteServiceCodecRegistrator.java
index 2868e5f..736fbea 100644
--- a/apps/route-service/app/src/main/java/org/onosproject/routeservice/rest/RouteServiceCodecRegistrator.java
+++ b/apps/route-service/app/src/main/java/org/onosproject/routeservice/rest/RouteServiceCodecRegistrator.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.routeservice.rest;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.codec.CodecService;
 import org.onosproject.routeservice.Route;
 import org.slf4j.Logger;
@@ -34,7 +34,7 @@
 
     private static Logger log = LoggerFactory.getLogger(RouteServiceCodecRegistrator.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CodecService codecService;
 
     @Activate
diff --git a/apps/route-service/app/src/main/java/org/onosproject/routeservice/store/RouteStoreImpl.java b/apps/route-service/app/src/main/java/org/onosproject/routeservice/store/RouteStoreImpl.java
index 7e3ea9f..f174801 100644
--- a/apps/route-service/app/src/main/java/org/onosproject/routeservice/store/RouteStoreImpl.java
+++ b/apps/route-service/app/src/main/java/org/onosproject/routeservice/store/RouteStoreImpl.java
@@ -16,13 +16,6 @@
 
 package org.onosproject.routeservice.store;
 
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
 import org.onlab.util.Tools;
@@ -37,6 +30,11 @@
 import org.onosproject.store.service.StorageService;
 import org.osgi.service.component.ComponentContext;
 import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -48,19 +46,18 @@
  * An implementation of RouteStore that is backed by either LocalRouteStore or
  * DistributedRouteStore according to configuration.
  */
-@Service
-@Component
+@Component(service = RouteStore.class)
 public class RouteStoreImpl extends AbstractStore<InternalRouteEvent, RouteStoreDelegate>
         implements RouteStore {
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public StorageService storageService;
 
-    @Property(name = "distributed", boolValue = false,
-            label = "Enable distributed route store")
+    //@Property(name = "distributed", boolValue = false,
+    //        label = "Enable distributed route store")
     private boolean distributed;
 
     private final Logger log = LoggerFactory.getLogger(getClass());
diff --git a/apps/routeradvertisement/src/main/java/org/onosproject/ra/RouterAdvertisementManager.java b/apps/routeradvertisement/src/main/java/org/onosproject/ra/RouterAdvertisementManager.java
index f568e90..8da5065 100644
--- a/apps/routeradvertisement/src/main/java/org/onosproject/ra/RouterAdvertisementManager.java
+++ b/apps/routeradvertisement/src/main/java/org/onosproject/ra/RouterAdvertisementManager.java
@@ -16,14 +16,7 @@
 
 package org.onosproject.ra;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Service;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import com.google.common.collect.ImmutableMap;
 import org.onlab.packet.EthType;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.ICMP6;
@@ -66,6 +59,12 @@
 import org.onosproject.net.packet.PacketService;
 import org.onosproject.ra.config.RouterAdvertisementDeviceConfig;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -90,13 +89,11 @@
 import static com.google.common.base.Strings.isNullOrEmpty;
 import static org.onlab.util.Tools.get;
 import static org.onlab.util.Tools.groupedThreads;
-import com.google.common.collect.ImmutableMap;
 
 /**
  * Manages IPv6 Router Advertisements.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = RoutingAdvertisementService.class)
 public class RouterAdvertisementManager implements RoutingAdvertisementService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
@@ -113,49 +110,49 @@
     private static final String PROP_RA_GLOBAL_PREFIX_CONF_STATUS = "raGlobalPrefixConfStatus";
     private static final boolean DEFAULT_RA_GLOBAL_PREFIX_CONF_STATUS = true;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry networkConfigRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Property(name = PROP_RA_THREADS_POOL, intValue = DEFAULT_RA_THREADS_POOL_SIZE,
-            label = "Thread pool capacity")
+    //@Property(name = PROP_RA_THREADS_POOL, intValue = DEFAULT_RA_THREADS_POOL_SIZE,
+    //        label = "Thread pool capacity")
     protected int raPoolSize = DEFAULT_RA_THREADS_POOL_SIZE;
 
-    @Property(name = PROP_RA_THREADS_DELAY, intValue = DEFAULT_RA_THREADS_DELAY,
-            label = "Thread delay in seconds")
+    //@Property(name = PROP_RA_THREADS_DELAY, intValue = DEFAULT_RA_THREADS_DELAY,
+    //        label = "Thread delay in seconds")
     protected int raThreadDelay = DEFAULT_RA_THREADS_DELAY;
 
-    @Property(name = PROP_RA_FLAG_MBIT_STATUS, boolValue = DEFAULT_RA_FLAG_MBIT_STATUS,
-            label = "Turn M-bit flag on/off")
+    //@Property(name = PROP_RA_FLAG_MBIT_STATUS, boolValue = DEFAULT_RA_FLAG_MBIT_STATUS,
+    //        label = "Turn M-bit flag on/off")
     protected boolean raFlagMbitStatus = DEFAULT_RA_FLAG_MBIT_STATUS;
 
-    @Property(name = PROP_RA_FLAG_OBIT_STATUS, boolValue = DEFAULT_RA_FLAG_OBIT_STATUS,
-            label = "Turn O-bit flag on/off")
+    //@Property(name = PROP_RA_FLAG_OBIT_STATUS, boolValue = DEFAULT_RA_FLAG_OBIT_STATUS,
+    //        label = "Turn O-bit flag on/off")
     protected boolean raFlagObitStatus = DEFAULT_RA_FLAG_OBIT_STATUS;
 
-    @Property(name = PROP_RA_OPTION_PREFIX_STATUS, boolValue = DEFAULT_RA_OPTION_PREFIX_STATUS,
-            label = "Prefix option support needed or not")
+    //@Property(name = PROP_RA_OPTION_PREFIX_STATUS, boolValue = DEFAULT_RA_OPTION_PREFIX_STATUS,
+    //        label = "Prefix option support needed or not")
     protected boolean raOptionPrefixStatus = DEFAULT_RA_OPTION_PREFIX_STATUS;
 
-    @Property(name = PROP_RA_GLOBAL_PREFIX_CONF_STATUS, boolValue = DEFAULT_RA_GLOBAL_PREFIX_CONF_STATUS,
-            label = "Global prefix configuration support on/off")
+    //@Property(name = PROP_RA_GLOBAL_PREFIX_CONF_STATUS, boolValue = DEFAULT_RA_GLOBAL_PREFIX_CONF_STATUS,
+    //        label = "Global prefix configuration support on/off")
     protected boolean raGlobalConfigStatus = DEFAULT_RA_GLOBAL_PREFIX_CONF_STATUS;
 
     @GuardedBy(value = "this")
diff --git a/apps/routing/common/src/main/java/org/onosproject/routing/bgp/BgpSessionManager.java b/apps/routing/common/src/main/java/org/onosproject/routing/bgp/BgpSessionManager.java
index a2521ba..0259a2f 100644
--- a/apps/routing/common/src/main/java/org/onosproject/routing/bgp/BgpSessionManager.java
+++ b/apps/routing/common/src/main/java/org/onosproject/routing/bgp/BgpSessionManager.java
@@ -16,13 +16,6 @@
 
 package org.onosproject.routing.bgp;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.jboss.netty.bootstrap.ServerBootstrap;
 import org.jboss.netty.channel.Channel;
 import org.jboss.netty.channel.ChannelException;
@@ -41,6 +34,12 @@
 import org.onosproject.routeservice.Route;
 import org.onosproject.routeservice.RouteAdminService;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -58,16 +57,15 @@
 /**
  * BGP Session Manager class.
  */
-@Component(immediate = true, enabled = false)
-@Service
+@Component(immediate = true, service = BgpInfoService.class)
 public class BgpSessionManager implements BgpInfoService {
     private static final Logger log =
             LoggerFactory.getLogger(BgpSessionManager.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteAdminService routeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
     boolean isShutdown = true;
diff --git a/apps/routing/common/src/main/java/org/onosproject/routing/impl/BgpSpeakerNeighbourHandler.java b/apps/routing/common/src/main/java/org/onosproject/routing/impl/BgpSpeakerNeighbourHandler.java
index ab1e595..1ae02c2 100644
--- a/apps/routing/common/src/main/java/org/onosproject/routing/impl/BgpSpeakerNeighbourHandler.java
+++ b/apps/routing/common/src/main/java/org/onosproject/routing/impl/BgpSpeakerNeighbourHandler.java
@@ -16,11 +16,11 @@
 
 package org.onosproject.routing.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.VlanId;
 import org.onosproject.core.ApplicationId;
@@ -59,16 +59,16 @@
 @Component(immediate = true, enabled = false)
 public class BgpSpeakerNeighbourHandler {
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NeighbourResolutionService neighbourService;
 
     private ApplicationId appId;
diff --git a/apps/routing/common/src/main/java/org/onosproject/routing/impl/DirectHostManager.java b/apps/routing/common/src/main/java/org/onosproject/routing/impl/DirectHostManager.java
index 0cac220..da62a5b 100644
--- a/apps/routing/common/src/main/java/org/onosproject/routing/impl/DirectHostManager.java
+++ b/apps/routing/common/src/main/java/org/onosproject/routing/impl/DirectHostManager.java
@@ -18,18 +18,11 @@
 
 import com.google.common.cache.Cache;
 import com.google.common.cache.CacheBuilder;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.EthType;
 import org.onlab.packet.Ethernet;
+import org.onlab.packet.IP;
 import org.onlab.packet.IPv4;
 import org.onlab.packet.IPv6;
-import org.onlab.packet.IP;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
@@ -37,8 +30,6 @@
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.net.intf.Interface;
-import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Host;
 import org.onosproject.net.flow.DefaultTrafficSelector;
@@ -47,6 +38,8 @@
 import org.onosproject.net.host.HostEvent;
 import org.onosproject.net.host.HostListener;
 import org.onosproject.net.host.HostService;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.packet.DefaultOutboundPacket;
 import org.onosproject.net.packet.OutboundPacket;
 import org.onosproject.net.packet.PacketContext;
@@ -54,6 +47,12 @@
 import org.onosproject.net.packet.PacketProcessor;
 import org.onosproject.net.packet.PacketService;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -75,25 +74,25 @@
 
     private Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
     private static final boolean DEFAULT_ENABLED = false;
 
-    @Property(name = "enabled", boolValue = DEFAULT_ENABLED,
-            label = "Enable reactive directly-connected host processing")
+    //@Property(name = "enabled", boolValue = DEFAULT_ENABLED,
+    //        label = "Enable reactive directly-connected host processing")
     private volatile boolean enabled = DEFAULT_ENABLED;
 
     private static final String APP_NAME = "org.onosproject.directhost";
diff --git a/apps/routing/cpr/src/main/java/org/onosproject/routing/cpr/ControlPlaneRedirectManager.java b/apps/routing/cpr/src/main/java/org/onosproject/routing/cpr/ControlPlaneRedirectManager.java
index c834c2c..679d33e 100644
--- a/apps/routing/cpr/src/main/java/org/onosproject/routing/cpr/ControlPlaneRedirectManager.java
+++ b/apps/routing/cpr/src/main/java/org/onosproject/routing/cpr/ControlPlaneRedirectManager.java
@@ -18,13 +18,6 @@
 
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.EthType;
 import org.onlab.packet.Ip4Address;
 import org.onlab.packet.Ip6Address;
@@ -36,8 +29,6 @@
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.net.intf.Interface;
-import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.mastership.MastershipService;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.Host;
@@ -57,13 +48,21 @@
 import org.onosproject.net.flowobjective.NextObjective;
 import org.onosproject.net.host.HostService;
 import org.onosproject.net.host.InterfaceIpAddress;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.routing.InterfaceProvisionRequest;
 import org.onosproject.routing.Router;
 import org.onosproject.routing.RouterInfo;
 import org.onosproject.routing.RoutingService;
-import org.onosproject.routing.config.RoutingConfiguration;
 import org.onosproject.routing.config.RoutersConfig;
+import org.onosproject.routing.config.RoutingConfiguration;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Dictionary;
@@ -99,35 +98,35 @@
     static final int ACL_PRIORITY = 40001;
     private static final int OSPF_IP_PROTO = 0x59;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowObjectiveService flowObjectiveService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry networkConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ApplicationService applicationService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Property(name = "forceUnprovision", boolValue = false,
-            label = "Force unprovision when the device goes offline")
+    //@Property(name = "forceUnprovision", boolValue = false,
+    //        label = "Force unprovision when the device goes offline")
     private boolean forceUnprovision = false;
 
     private static final String APP_NAME = "org.onosproject.cpr";
diff --git a/apps/routing/fibinstaller/src/main/java/org/onosproject/routing/fibinstaller/FibInstaller.java b/apps/routing/fibinstaller/src/main/java/org/onosproject/routing/fibinstaller/FibInstaller.java
index 73841bd..6eb23d4 100644
--- a/apps/routing/fibinstaller/src/main/java/org/onosproject/routing/fibinstaller/FibInstaller.java
+++ b/apps/routing/fibinstaller/src/main/java/org/onosproject/routing/fibinstaller/FibInstaller.java
@@ -19,13 +19,6 @@
 import com.google.common.collect.ConcurrentHashMultiset;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Multiset;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
@@ -36,20 +29,13 @@
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.net.config.basics.McastConfig;
-import org.onosproject.net.intf.Interface;
-import org.onosproject.net.intf.InterfaceService;
-import org.onosproject.routeservice.ResolvedRoute;
-import org.onosproject.routeservice.Route;
-import org.onosproject.routeservice.RouteEvent;
-import org.onosproject.routeservice.RouteListener;
-import org.onosproject.routeservice.RouteService;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.config.ConfigFactory;
 import org.onosproject.net.config.NetworkConfigEvent;
 import org.onosproject.net.config.NetworkConfigListener;
 import org.onosproject.net.config.NetworkConfigRegistry;
 import org.onosproject.net.config.NetworkConfigService;
+import org.onosproject.net.config.basics.McastConfig;
 import org.onosproject.net.config.basics.SubjectFactories;
 import org.onosproject.net.device.DeviceService;
 import org.onosproject.net.flow.DefaultTrafficSelector;
@@ -66,15 +52,28 @@
 import org.onosproject.net.flowobjective.ForwardingObjective;
 import org.onosproject.net.flowobjective.NextObjective;
 import org.onosproject.net.flowobjective.ObjectiveContext;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceService;
+import org.onosproject.routeservice.ResolvedRoute;
+import org.onosproject.routeservice.Route;
+import org.onosproject.routeservice.RouteEvent;
+import org.onosproject.routeservice.RouteListener;
+import org.onosproject.routeservice.RouteService;
 import org.onosproject.routing.InterfaceProvisionRequest;
 import org.onosproject.routing.NextHop;
 import org.onosproject.routing.NextHopGroupKey;
 import org.onosproject.routing.Router;
 import org.onosproject.routing.RouterInfo;
 import org.onosproject.routing.RoutingService;
-import org.onosproject.routing.config.RoutingConfiguration;
 import org.onosproject.routing.config.RoutersConfig;
+import org.onosproject.routing.config.RoutingConfiguration;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -98,35 +97,35 @@
     //        programs the fabric switches for VR
     public static final short ASSIGNED_VLAN = 4094;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteService routeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService networkConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry networkConfigRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowObjectiveService flowObjectiveService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ApplicationService applicationService;
 
-    @Property(name = "routeToNextHop", boolValue = false,
-            label = "Install a /32 or /128 route to each next hop")
+    //@Property(name = "routeToNextHop", boolValue = false,
+    //        label = "Install a /32 or /128 route to each next hop")
     private boolean routeToNextHop = false;
 
     // Device id of data-plane switch - should be learned from config
diff --git a/apps/routing/fpm/app/src/main/java/org/onosproject/routing/fpm/FpmManager.java b/apps/routing/fpm/app/src/main/java/org/onosproject/routing/fpm/FpmManager.java
index 4deaebb..3973520 100644
--- a/apps/routing/fpm/app/src/main/java/org/onosproject/routing/fpm/FpmManager.java
+++ b/apps/routing/fpm/app/src/main/java/org/onosproject/routing/fpm/FpmManager.java
@@ -18,15 +18,6 @@
 
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Lists;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.ReferencePolicy;
-import org.apache.felix.scr.annotations.Service;
 import org.jboss.netty.bootstrap.ServerBootstrap;
 import org.jboss.netty.channel.Channel;
 import org.jboss.netty.channel.ChannelException;
@@ -75,19 +66,26 @@
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.ReferencePolicy;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.net.InetSocketAddress;
 import java.time.Duration;
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Dictionary;
 import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
@@ -101,8 +99,7 @@
 /**
  * Forwarding Plane Manager (FPM) route source.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = FpmInfoService.class)
 public class FpmManager implements FpmInfoService {
     private final Logger log = LoggerFactory.getLogger(getClass());
 
@@ -111,32 +108,32 @@
     private static final int IDLE_TIMEOUT_SECS = 5;
     private static final String LOCK_NAME = "fpm-manager-lock";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteAdminService routeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.OPTIONAL_UNARY,
+    @Reference(cardinality = ReferenceCardinality.OPTIONAL,
                bind = "bindRipStore",
                unbind = "unbindRipStore",
                policy = ReferencePolicy.DYNAMIC,
                target = "(fpm_type=RIP)")
     protected volatile FpmPrefixStore ripStore;
 
-    @Reference(cardinality = ReferenceCardinality.OPTIONAL_UNARY,
+    @Reference(cardinality = ReferenceCardinality.OPTIONAL,
                bind = "bindDhcpStore",
                unbind = "unbindDhcpStore",
                policy = ReferencePolicy.DYNAMIC,
@@ -162,20 +159,20 @@
     //Local cache for peers to be used in case of cluster partition.
     private Map<FpmPeer, Set<FpmConnectionInfo>> localPeers = new ConcurrentHashMap<>();
 
-    @Property(name = "clearRoutes", boolValue = true,
-            label = "Whether to clear routes when the FPM connection goes down")
+    //@Property(name = "clearRoutes", boolValue = true,
+    //        label = "Whether to clear routes when the FPM connection goes down")
     private boolean clearRoutes = true;
 
-    @Property(name = "pdPushEnabled", boolValue = false,
-            label = "Whether to push prefixes to Quagga over fpm connection")
+    //@Property(name = "pdPushEnabled", boolValue = false,
+    //        label = "Whether to push prefixes to Quagga over fpm connection")
     private boolean pdPushEnabled = false;
 
-    @Property(name = "pdPushNextHopIPv4", value = "",
-            label = "IPv4 next-hop address for PD Pushing.")
+    //@Property(name = "pdPushNextHopIPv4", value = "",
+    //        label = "IPv4 next-hop address for PD Pushing.")
     private List<Ip4Address> pdPushNextHopIPv4 = null;
 
-    @Property(name = "pdPushNextHopIPv6", value = "",
-            label = "IPv6 next-hop address for PD Pushing.")
+    //@Property(name = "pdPushNextHopIPv6", value = "",
+    //        label = "IPv6 next-hop address for PD Pushing.")
     private List<Ip6Address> pdPushNextHopIPv6 = null;
 
     protected void bindRipStore(FpmPrefixStore store) {
diff --git a/apps/scalablegateway/src/main/java/org/onosproject/scalablegateway/impl/ScalableGatewayManager.java b/apps/scalablegateway/src/main/java/org/onosproject/scalablegateway/impl/ScalableGatewayManager.java
index d5c478b..11cc0ad 100644
--- a/apps/scalablegateway/src/main/java/org/onosproject/scalablegateway/impl/ScalableGatewayManager.java
+++ b/apps/scalablegateway/src/main/java/org/onosproject/scalablegateway/impl/ScalableGatewayManager.java
@@ -18,12 +18,6 @@
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Lists;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onlab.util.Tools;
 import org.onosproject.core.ApplicationId;
@@ -53,6 +47,11 @@
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.Versioned;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -66,8 +65,7 @@
  * Manages gateway node for gateway scalability.
  */
 
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = ScalableGatewayService.class)
 public class ScalableGatewayManager implements ScalableGatewayService {
     private final Logger log = LoggerFactory.getLogger(getClass());
 
@@ -76,25 +74,25 @@
     private static final String APP_NAME = "scalablegateway";
     private static final String GATEWAYNODE_MAP_NAME = "gatewaynode-map";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry configRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected GroupService groupService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private GatewayNodeConfig config;
diff --git a/apps/sdnip/src/main/java/org/onosproject/sdnip/SdnIp.java b/apps/sdnip/src/main/java/org/onosproject/sdnip/SdnIp.java
index 1103736..8df4949 100644
--- a/apps/sdnip/src/main/java/org/onosproject/sdnip/SdnIp.java
+++ b/apps/sdnip/src/main/java/org/onosproject/sdnip/SdnIp.java
@@ -16,11 +16,11 @@
 package org.onosproject.sdnip;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.app.ApplicationService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -49,25 +49,25 @@
     public static final String SDN_IP_APP = "org.onosproject.sdnip";
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ApplicationService applicationService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService networkConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentSynchronizationService intentSynchronizer;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry cfgRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentService componentService;
 
     private PeerConnectivityManager peerConnectivity;
diff --git a/apps/sdnip/src/main/java/org/onosproject/sdnip/SdnIpFib.java b/apps/sdnip/src/main/java/org/onosproject/sdnip/SdnIpFib.java
index 9a4369e..3f484eb 100644
--- a/apps/sdnip/src/main/java/org/onosproject/sdnip/SdnIpFib.java
+++ b/apps/sdnip/src/main/java/org/onosproject/sdnip/SdnIpFib.java
@@ -18,11 +18,11 @@
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
@@ -74,19 +74,19 @@
 public class SdnIpFib {
     private Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentSynchronizationService intentSynchronizer;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService networkConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteService routeService;
 
     private final InternalRouteListener routeListener = new InternalRouteListener();
diff --git a/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/SegmentRoutingManager.java b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/SegmentRoutingManager.java
index f083d74..ced12d0 100644
--- a/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/SegmentRoutingManager.java
+++ b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/SegmentRoutingManager.java
@@ -20,14 +20,6 @@
 import com.google.common.collect.Maps;
 import com.google.common.collect.Multimap;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.ICMP6;
 import org.onlab.packet.IPv4;
@@ -110,19 +102,17 @@
 import org.onosproject.segmentrouting.mcast.McastHandler;
 import org.onosproject.segmentrouting.mcast.McastRole;
 import org.onosproject.segmentrouting.mcast.McastRoleStoreKey;
+import org.onosproject.segmentrouting.mcast.McastStoreKey;
 import org.onosproject.segmentrouting.pwaas.DefaultL2Tunnel;
 import org.onosproject.segmentrouting.pwaas.DefaultL2TunnelDescription;
 import org.onosproject.segmentrouting.pwaas.DefaultL2TunnelHandler;
 import org.onosproject.segmentrouting.pwaas.DefaultL2TunnelPolicy;
-
 import org.onosproject.segmentrouting.pwaas.L2Tunnel;
+import org.onosproject.segmentrouting.pwaas.L2TunnelDescription;
 import org.onosproject.segmentrouting.pwaas.L2TunnelHandler;
 import org.onosproject.segmentrouting.pwaas.L2TunnelPolicy;
-import org.onosproject.segmentrouting.pwaas.L2TunnelDescription;
-
 import org.onosproject.segmentrouting.storekey.DestinationSetNextObjectiveStoreKey;
 import org.onosproject.segmentrouting.storekey.DummyVlanIdStoreKey;
-import org.onosproject.segmentrouting.mcast.McastStoreKey;
 import org.onosproject.segmentrouting.storekey.PortNextObjectiveStoreKey;
 import org.onosproject.segmentrouting.storekey.VlanNextObjectiveStoreKey;
 import org.onosproject.segmentrouting.storekey.XConnectStoreKey;
@@ -133,6 +123,12 @@
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.WallClockTimestamp;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -165,101 +161,100 @@
 /**
  * Segment routing manager.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = SegmentRoutingService.class)
 public class SegmentRoutingManager implements SegmentRoutingService {
 
     private static Logger log = LoggerFactory.getLogger(SegmentRoutingManager.class);
     private static final String NOT_MASTER = "Current instance is not the master of {}. Ignore.";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private ComponentConfigService compCfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private NeighbourResolutionService neighbourResolutionService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     HostProbingService probingService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     DeviceAdminService deviceAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public FlowObjectiveService flowObjectiveService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public MulticastRouteService multicastRouteService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public TopologyService topologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     RouteService routeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public NetworkConfigRegistry cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public WorkPartitionService workPartitionService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.OPTIONAL_UNARY)
+    @Reference(cardinality = ReferenceCardinality.OPTIONAL)
     public XconnectService xconnectService;
 
-    @Property(name = "activeProbing", boolValue = true,
-            label = "Enable active probing to discover dual-homed hosts.")
+    //@Property(name = "activeProbing", boolValue = true,
+    //        label = "Enable active probing to discover dual-homed hosts.")
     boolean activeProbing = true;
 
-    @Property(name = "singleHomedDown", boolValue = false,
-            label = "Enable administratively taking down single-homed hosts "
-                    + "when all uplinks are gone")
+    //@Property(name = "singleHomedDown", boolValue = false,
+    //        label = "Enable administratively taking down single-homed hosts "
+    //                + "when all uplinks are gone")
     boolean singleHomedDown = false;
 
-    @Property(name = "respondToUnknownHosts", boolValue = true,
-            label = "Enable this to respond to ARP/NDP requests from unknown hosts.")
+    //@Property(name = "respondToUnknownHosts", boolValue = true,
+    //        label = "Enable this to respond to ARP/NDP requests from unknown hosts.")
     boolean respondToUnknownHosts = true;
 
-    @Property(name = "routeDoubleTaggedHosts", boolValue = false,
-            label = "Program flows and groups to pop and route double tagged hosts")
+    //@Property(name = "routeDoubleTaggedHosts", boolValue = false,
+    //        label = "Program flows and groups to pop and route double tagged hosts")
     boolean routeDoubleTaggedHosts = false;
 
     private static final int DEFAULT_INTERNAL_VLAN = 4094;
-    @Property(name = "defaultInternalVlan", intValue = DEFAULT_INTERNAL_VLAN,
-            label = "internal vlan assigned by default to unconfigured ports")
+    //@Property(name = "defaultInternalVlan", intValue = DEFAULT_INTERNAL_VLAN,
+    //        label = "internal vlan assigned by default to unconfigured ports")
     private int defaultInternalVlan = DEFAULT_INTERNAL_VLAN;
 
     private static final int PW_TRANSPORT_VLAN = 4090;
-    @Property(name = "pwTransportVlan", intValue = PW_TRANSPORT_VLAN,
-            label = "vlan used for transport of pseudowires between switches")
+    //@Property(name = "pwTransportVlan", intValue = PW_TRANSPORT_VLAN,
+    //        label = "vlan used for transport of pseudowires between switches")
     private int pwTransportVlan = PW_TRANSPORT_VLAN;
 
     ArpHandler arpHandler = null;
diff --git a/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/xconnect/api/XconnectService.java b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/xconnect/api/XconnectService.java
index 25f1b01..70ea3ae 100644
--- a/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/xconnect/api/XconnectService.java
+++ b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/xconnect/api/XconnectService.java
@@ -16,7 +16,6 @@
 package org.onosproject.segmentrouting.xconnect.api;
 
 import com.google.common.collect.ImmutableMap;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.VlanId;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.DeviceId;
@@ -27,7 +26,6 @@
 /**
  * VLAN cross connect between exactly two ports.
  */
-@Service
 public interface XconnectService {
 
     /**
diff --git a/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/xconnect/impl/XconnectManager.java b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/xconnect/impl/XconnectManager.java
index a7eb664..5e42e57 100644
--- a/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/xconnect/impl/XconnectManager.java
+++ b/apps/segmentrouting/app/src/main/java/org/onosproject/segmentrouting/xconnect/impl/XconnectManager.java
@@ -18,12 +18,6 @@
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
 import org.onlab.util.KryoNamespace;
@@ -66,6 +60,11 @@
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.Versioned;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -80,31 +79,30 @@
 
 import static org.onlab.util.Tools.groupedThreads;
 
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = XconnectService.class)
 public class XconnectManager implements XconnectService {
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private CodecService codecService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public NetworkConfigService netCfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public FlowObjectiveService flowObjectiveService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.OPTIONAL_UNARY)
+    @Reference(cardinality = ReferenceCardinality.OPTIONAL)
     public SegmentRoutingService srService;
 
     private static final String APP_NAME = "org.onosproject.xconnect";
diff --git a/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricL2Forward.java b/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricL2Forward.java
index a67ed1a..c8ecdd7 100644
--- a/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricL2Forward.java
+++ b/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricL2Forward.java
@@ -20,11 +20,11 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
 import org.onosproject.core.ApplicationId;
@@ -74,16 +74,16 @@
     private final Logger log = LoggerFactory.getLogger(getClass());
     protected ApplicationId l2ForwardAppId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SimpleFabricService simpleFabric;
 
     public static final ImmutableList<Constraint> L2NETWORK_CONSTRAINTS =
diff --git a/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricManager.java b/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricManager.java
index 43686ab..d42f8e1 100644
--- a/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricManager.java
+++ b/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricManager.java
@@ -21,60 +21,59 @@
 import com.googlecode.concurrenttrees.radix.node.concrete.DefaultByteArrayNodeFactory;
 import com.googlecode.concurrenttrees.radixinverted.ConcurrentInvertedRadixTree;
 import com.googlecode.concurrenttrees.radixinverted.InvertedRadixTree;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.ARP;
 import org.onlab.packet.Ethernet;
+import org.onlab.packet.IPv6;
 import org.onlab.packet.Ip4Address;
 import org.onlab.packet.Ip6Address;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
-import org.onlab.packet.IPv6;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
 import org.onlab.packet.ndp.NeighborSolicitation;
 import org.onosproject.app.ApplicationService;
+import org.onosproject.component.ComponentService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.component.ComponentService;
 import org.onosproject.event.ListenerRegistry;
-import org.onosproject.net.intf.Interface;
-import org.onosproject.net.intf.InterfaceService;
-import org.onosproject.net.intf.InterfaceListener;
-import org.onosproject.net.intf.InterfaceEvent;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.Host;
 import org.onosproject.net.config.ConfigFactory;
 import org.onosproject.net.config.NetworkConfigEvent;
 import org.onosproject.net.config.NetworkConfigListener;
 import org.onosproject.net.config.NetworkConfigRegistry;
 import org.onosproject.net.config.NetworkConfigService;
 import org.onosproject.net.config.basics.SubjectFactories;
-import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.device.DeviceEvent;
 import org.onosproject.net.device.DeviceListener;
 import org.onosproject.net.device.DeviceService;
 import org.onosproject.net.flow.DefaultTrafficTreatment;
 import org.onosproject.net.flow.TrafficTreatment;
-import org.onosproject.net.Host;
-import org.onosproject.net.host.HostService;
-import org.onosproject.net.host.HostListener;
 import org.onosproject.net.host.HostEvent;
-import org.onosproject.net.packet.PacketService;
+import org.onosproject.net.host.HostListener;
+import org.onosproject.net.host.HostService;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceEvent;
+import org.onosproject.net.intf.InterfaceListener;
+import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.packet.DefaultOutboundPacket;
 import org.onosproject.net.packet.OutboundPacket;
+import org.onosproject.net.packet.PacketService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.OutputStream;
 import java.io.PrintStream;
 import java.nio.ByteBuffer;
-import java.util.HashSet;
 import java.util.Collection;
-import java.util.Set;
+import java.util.HashSet;
 import java.util.Map;
+import java.util.Set;
 
 import static org.onosproject.simplefabric.RouteTools.createBinaryString;
 
@@ -82,39 +81,38 @@
 /**
  * Reactive routing configuration manager.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = SimpleFabricService.class)
 public class SimpleFabricManager extends ListenerRegistry<SimpleFabricEvent, SimpleFabricListener>
         implements SimpleFabricService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ApplicationService applicationService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry registry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
     // compoents to be activated within SimpleFabric
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentService componentService;
 
     // SimpleFabric variables
diff --git a/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricNeighbour.java b/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricNeighbour.java
index d796346..d506a7e 100644
--- a/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricNeighbour.java
+++ b/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricNeighbour.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.simplefabric;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.MacAddress;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -48,19 +48,19 @@
     private final Logger log = LoggerFactory.getLogger(getClass());
     protected ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NeighbourResolutionService neighbourService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SimpleFabricService simpleFabric;
 
     private final InternalSimpleFabricListener simpleFabricListener =
diff --git a/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricReactiveRouting.java b/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricReactiveRouting.java
index e66d700..ee37a95 100644
--- a/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricReactiveRouting.java
+++ b/apps/simplefabric/src/main/java/org/onosproject/simplefabric/SimpleFabricReactiveRouting.java
@@ -16,11 +16,11 @@
 package org.onosproject.simplefabric;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.EthType;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.ICMP;
@@ -92,31 +92,31 @@
     private final Logger log = LoggerFactory.getLogger(getClass());
     private ApplicationId reactiveAppId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SimpleFabricService simpleFabric;
 
     private ImmutableList<Constraint> reactiveConstraints
diff --git a/apps/t3/app/src/main/java/org/onosproject/t3/impl/TroubleshootManager.java b/apps/t3/app/src/main/java/org/onosproject/t3/impl/TroubleshootManager.java
index 018f6ac..df73a61 100644
--- a/apps/t3/app/src/main/java/org/onosproject/t3/impl/TroubleshootManager.java
+++ b/apps/t3/app/src/main/java/org/onosproject/t3/impl/TroubleshootManager.java
@@ -22,10 +22,6 @@
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
 import org.apache.commons.lang3.tuple.Pair;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.VlanId;
 import org.onosproject.cluster.NodeId;
@@ -74,6 +70,9 @@
 import org.onosproject.t3.api.GroupsInDevice;
 import org.onosproject.t3.api.StaticPacketTrace;
 import org.onosproject.t3.api.TroubleshootService;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.net.UnknownHostException;
@@ -103,45 +102,44 @@
  * Given a representation of a packet follows it's path in the network according to the existing flows and groups in
  * the devices.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = TroubleshootService.class)
 public class TroubleshootManager implements TroubleshootService {
 
     private static final Logger log = getLogger(TroubleshootManager.class);
 
     static final String PACKET_TO_CONTROLLER = "Packet goes to the controller";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected GroupService groupService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService networkConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EdgePortService edgePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteService routeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MulticastRouteService mcastService;
 
     @Override
diff --git a/apps/tenbi/topology/src/main/java/org/onosproject/tenbi/topology/impl/TeTopologyNbiManager.java b/apps/tenbi/topology/src/main/java/org/onosproject/tenbi/topology/impl/TeTopologyNbiManager.java
index 1f6dfd2..4c4d532 100644
--- a/apps/tenbi/topology/src/main/java/org/onosproject/tenbi/topology/impl/TeTopologyNbiManager.java
+++ b/apps/tenbi/topology/src/main/java/org/onosproject/tenbi/topology/impl/TeTopologyNbiManager.java
@@ -17,12 +17,11 @@
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.event.AbstractListenerManager;
 import org.onosproject.tetopology.management.api.TeTopologyEvent;
 import org.onosproject.tetopology.management.api.TeTopologyListener;
@@ -54,18 +53,17 @@
 /**
  * The IETF TE Topology NBI Manager implementation.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = { IetfNetworkService.class, IetfNetworkTopologyService.class, IetfTeTopologyService.class })
 public class TeTopologyNbiManager
         extends AbstractListenerManager<IetfTeTopologyEvent, IetfTeTopologyEventListener>
         implements IetfNetworkService, IetfNetworkTopologyService, IetfTeTopologyService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTopologyService teTopologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected YmsService ymsService;
 
 
diff --git a/apps/tenbi/tunnel/src/main/java/org/onosproject/tenbi/tunnel/TeTunnelNbiManager.java b/apps/tenbi/tunnel/src/main/java/org/onosproject/tenbi/tunnel/TeTunnelNbiManager.java
index 34a3033..4783d4a 100644
--- a/apps/tenbi/tunnel/src/main/java/org/onosproject/tenbi/tunnel/TeTunnelNbiManager.java
+++ b/apps/tenbi/tunnel/src/main/java/org/onosproject/tenbi/tunnel/TeTunnelNbiManager.java
@@ -16,12 +16,11 @@
 
 package org.onosproject.tenbi.tunnel;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.event.AbstractListenerManager;
 import org.onosproject.tetopology.management.api.TeTopology;
 import org.onosproject.tetopology.management.api.TeTopologyKey;
@@ -55,23 +54,22 @@
 /**
  * The IETF TE Tunnel NBI Manager implementation.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = IetfTeService.class)
 public class TeTunnelNbiManager
         extends AbstractListenerManager<IetfTeEvent, IetfTeEventListener>
         implements IetfTeService {
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected YmsService ymsService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTunnelService tunnelService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTopologyService toplogyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTunnelAdminService tunnelAdminService;
 
     @Activate
diff --git a/apps/test/cluster-ha/src/main/java/org/onosproject/clusterha/ClusterHATest.java b/apps/test/cluster-ha/src/main/java/org/onosproject/clusterha/ClusterHATest.java
index 0ccca0a..1de17ec 100644
--- a/apps/test/cluster-ha/src/main/java/org/onosproject/clusterha/ClusterHATest.java
+++ b/apps/test/cluster-ha/src/main/java/org/onosproject/clusterha/ClusterHATest.java
@@ -18,20 +18,19 @@
 package org.onosproject.clusterha;
 
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
-import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.store.service.Serializer;
+import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.ConsistentMap;
+import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageException;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -42,16 +41,15 @@
 /**
  * Cluster HA Test.
  */
-@Component(immediate = true)
-@Service(value = ClusterHATest.class)
+@Component(immediate = true, service = ClusterHATest.class)
 public class ClusterHATest {
 
     protected final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private ApplicationId appId;
diff --git a/apps/test/demo/src/main/java/org/onosproject/demo/DemoInstaller.java b/apps/test/demo/src/main/java/org/onosproject/demo/DemoInstaller.java
index 3772bdb..8283a22 100644
--- a/apps/test/demo/src/main/java/org/onosproject/demo/DemoInstaller.java
+++ b/apps/test/demo/src/main/java/org/onosproject/demo/DemoInstaller.java
@@ -15,36 +15,16 @@
  */
 package org.onosproject.demo;
 
-import java.security.SecureRandom;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.concurrent.atomic.AtomicLong;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Objects;
-import java.util.Optional;
-import java.util.Random;
-import java.util.Set;
-import java.util.concurrent.Callable;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.Future;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
-
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.base.Predicate;
+import com.google.common.base.Stopwatch;
+import com.google.common.collect.FluentIterable;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
+import com.google.common.util.concurrent.ThreadFactoryBuilder;
 import org.apache.commons.lang.math.RandomUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.MacAddress;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.ControllerNode;
@@ -53,6 +33,7 @@
 import org.onosproject.core.CoreService;
 import org.onosproject.mastership.MastershipService;
 import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
 import org.onosproject.net.Host;
 import org.onosproject.net.HostId;
 import org.onosproject.net.MastershipRole;
@@ -69,64 +50,80 @@
 import org.onosproject.net.flow.TrafficTreatment;
 import org.onosproject.net.flow.criteria.Criterion;
 import org.onosproject.net.flow.instructions.Instructions;
-import org.onosproject.net.flowobjective.FlowObjectiveService;
 import org.onosproject.net.flowobjective.DefaultFilteringObjective;
 import org.onosproject.net.flowobjective.DefaultForwardingObjective;
-import org.onosproject.net.flowobjective.ForwardingObjective;
-import org.onosproject.net.flowobjective.FilteringObjective;
 import org.onosproject.net.flowobjective.DefaultObjectiveContext;
+import org.onosproject.net.flowobjective.FilteringObjective;
+import org.onosproject.net.flowobjective.FlowObjectiveService;
+import org.onosproject.net.flowobjective.ForwardingObjective;
 import org.onosproject.net.flowobjective.ObjectiveContext;
-import org.onosproject.net.DeviceId;
 import org.onosproject.net.host.HostService;
 import org.onosproject.net.intent.Constraint;
 import org.onosproject.net.intent.HostToHostIntent;
 import org.onosproject.net.intent.Intent;
 import org.onosproject.net.intent.IntentService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.node.ObjectNode;
-import com.google.common.base.Predicate;
-import com.google.common.base.Stopwatch;
-import com.google.common.collect.FluentIterable;
-import com.google.common.collect.Lists;
-import com.google.common.collect.Sets;
-import com.google.common.util.concurrent.ThreadFactoryBuilder;
+import java.security.SecureRandom;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.Random;
+import java.util.Set;
+import java.util.concurrent.Callable;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.concurrent.atomic.AtomicLong;
 
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Application to set up demos.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = DemoApi.class)
 public class DemoInstaller implements DemoApi {
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowObjectiveService objectiveService;
 
     private ExecutorService worker;
diff --git a/apps/test/distributed-primitives/src/main/java/org/onosproject/distributedprimitives/DistributedPrimitivesTest.java b/apps/test/distributed-primitives/src/main/java/org/onosproject/distributedprimitives/DistributedPrimitivesTest.java
index 3296046..0e8c5a0 100644
--- a/apps/test/distributed-primitives/src/main/java/org/onosproject/distributedprimitives/DistributedPrimitivesTest.java
+++ b/apps/test/distributed-primitives/src/main/java/org/onosproject/distributedprimitives/DistributedPrimitivesTest.java
@@ -15,15 +15,7 @@
  */
 package org.onosproject.distributedprimitives;
 
-import java.util.Map;
-
 import com.google.common.collect.Maps;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.store.serializers.KryoNamespaces;
@@ -32,15 +24,21 @@
 import org.onosproject.store.service.LeaderElector;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.WallClockTimestamp;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
+import java.util.Map;
+
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Simple application to test distributed primitives.
  */
-@Component(immediate = true)
-@Service(value = DistributedPrimitivesTest.class)
+@Component(immediate = true, service = DistributedPrimitivesTest.class)
 public class DistributedPrimitivesTest {
 
     private final Logger log = getLogger(getClass());
@@ -48,10 +46,10 @@
     private static final String APP_NAME = "org.onosproject.distributedprimitives";
     private ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private final Map<String, EventuallyConsistentMap<String, String>> maps = Maps.newConcurrentMap();
diff --git a/apps/test/election/src/main/java/org/onosproject/election/ElectionTest.java b/apps/test/election/src/main/java/org/onosproject/election/ElectionTest.java
index 8497b81..17a620c 100644
--- a/apps/test/election/src/main/java/org/onosproject/election/ElectionTest.java
+++ b/apps/test/election/src/main/java/org/onosproject/election/ElectionTest.java
@@ -17,11 +17,11 @@
 
 import static org.slf4j.LoggerFactory.getLogger;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.core.CoreService;
 import org.onosproject.cluster.LeadershipEvent;
@@ -43,13 +43,13 @@
     private static final String ELECTION_APP = "org.onosproject.election";
     private ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
     private LeadershipEventListener leadershipEventListener =
diff --git a/apps/test/flow-perf/src/main/java/org/onosproject/flowperf/FlowPerfApp.java b/apps/test/flow-perf/src/main/java/org/onosproject/flowperf/FlowPerfApp.java
index 9748907..9ee3559 100644
--- a/apps/test/flow-perf/src/main/java/org/onosproject/flowperf/FlowPerfApp.java
+++ b/apps/test/flow-perf/src/main/java/org/onosproject/flowperf/FlowPerfApp.java
@@ -15,28 +15,8 @@
  */
 package org.onosproject.flowperf;
 
-import static com.google.common.base.Strings.isNullOrEmpty;
-import static org.apache.felix.scr.annotations.ReferenceCardinality.MANDATORY_UNARY;
-import static org.onlab.util.Tools.get;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.Dictionary;
-import java.util.Iterator;
-import java.util.List;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.concurrent.atomic.AtomicLong;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.collect.Iterables;
+import com.google.common.collect.Lists;
 import org.onlab.packet.MacAddress;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
@@ -56,10 +36,26 @@
 import org.onosproject.net.flow.TrafficTreatment;
 import org.onosproject.net.flow.instructions.Instructions;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
 import org.slf4j.Logger;
 
-import com.google.common.collect.Iterables;
-import com.google.common.collect.Lists;
+import java.util.Dictionary;
+import java.util.Iterator;
+import java.util.List;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
+
+import static com.google.common.base.Strings.isNullOrEmpty;
+import static org.onlab.util.Tools.get;
+import static org.osgi.service.component.annotations.ReferenceCardinality.MANDATORY;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Application for measuring flow installation performance.
@@ -67,21 +63,20 @@
  * This application installs a bunch of flows, validates that all those flows have
  * been successfully added and immediately proceeds to remove all the added flows.
  */
-@Component(immediate = true, enabled = true)
-@Service(value = FlowPerfApp.class)
+@Component(immediate = true, service = FlowPerfApp.class)
 public class FlowPerfApp {
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected ComponentConfigService configService;
 
     protected ApplicationId appId;
@@ -97,16 +92,16 @@
 
     List<FlowRule> addedRules = Lists.newArrayList();
 
-    @Property(name = "totalFlows", intValue = DEFAULT_TOTAL_FLOWS,
-            label = "Total number of flows")
+    //@Property(name = "totalFlows", intValue = DEFAULT_TOTAL_FLOWS,
+    //        label = "Total number of flows")
     protected int totalFlows = DEFAULT_TOTAL_FLOWS;
 
-    @Property(name = "batchSize", intValue = DEFAULT_BATCH_SIZE,
-            label = "Number of flows per batch")
+    //@Property(name = "batchSize", intValue = DEFAULT_BATCH_SIZE,
+    //        label = "Number of flows per batch")
     protected int batchSize = DEFAULT_BATCH_SIZE;
 
-    @Property(name = "totalThreads", intValue = DEFAULT_TOTAL_THREADS,
-            label = "Number of installer threads")
+    //@Property(name = "totalThreads", intValue = DEFAULT_TOTAL_THREADS,
+    //        label = "Number of installer threads")
     protected int totalThreads = DEFAULT_TOTAL_THREADS;
 
     private ExecutorService installer;
diff --git a/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfCollector.java b/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfCollector.java
index 5efb0b6..763f5de 100644
--- a/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfCollector.java
+++ b/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfCollector.java
@@ -16,12 +16,6 @@
 package org.onosproject.intentperf;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.ControllerNode;
 import org.onosproject.cluster.NodeId;
@@ -29,6 +23,11 @@
 import org.onosproject.store.cluster.messaging.ClusterMessage;
 import org.onosproject.store.cluster.messaging.ClusterMessageHandler;
 import org.onosproject.store.cluster.messaging.MessageSubject;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.ArrayList;
@@ -44,8 +43,7 @@
 /**
  * Collects and distributes performance samples.
  */
-@Component(immediate = true)
-@Service(value = IntentPerfCollector.class)
+@Component(immediate = true, service = IntentPerfCollector.class)
 public class IntentPerfCollector {
 
     private static final long SAMPLE_TIME_WINDOW_MS = 5_000;
@@ -57,13 +55,13 @@
 
     private static final MessageSubject SAMPLE = new MessageSubject("intent-perf-sample");
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterCommunicationService communicationService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentPerfUi ui;
 
     // Auxiliary structures used to accrue data for normalized time interval
diff --git a/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfInstaller.java b/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfInstaller.java
index 4784475..b956539 100644
--- a/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfInstaller.java
+++ b/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfInstaller.java
@@ -21,14 +21,6 @@
 import com.google.common.collect.Multimap;
 import com.google.common.collect.Sets;
 import org.apache.commons.lang.math.RandomUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.MacAddress;
 import org.onlab.util.Counter;
 import org.onosproject.cfg.ComponentConfigService;
@@ -52,11 +44,16 @@
 import org.onosproject.net.intent.IntentListener;
 import org.onosproject.net.intent.IntentService;
 import org.onosproject.net.intent.Key;
-import org.onosproject.net.intent.WorkPartitionService;
 import org.onosproject.net.intent.PointToPointIntent;
+import org.onosproject.net.intent.WorkPartitionService;
 import org.onosproject.store.cluster.messaging.ClusterCommunicationService;
 import org.onosproject.store.cluster.messaging.MessageSubject;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
 import org.slf4j.Logger;
 
 import java.util.ArrayList;
@@ -77,16 +74,20 @@
 import static com.google.common.base.Strings.isNullOrEmpty;
 import static java.lang.String.format;
 import static java.lang.System.currentTimeMillis;
-import static org.apache.felix.scr.annotations.ReferenceCardinality.MANDATORY_UNARY;
-import static org.onlab.util.Tools.*;
-import static org.onosproject.net.intent.IntentEvent.Type.*;
+import static org.onlab.util.Tools.delay;
+import static org.onlab.util.Tools.get;
+import static org.onlab.util.Tools.groupedThreads;
+import static org.onosproject.net.intent.IntentEvent.Type.INSTALLED;
+import static org.onosproject.net.intent.IntentEvent.Type.INSTALL_REQ;
+import static org.onosproject.net.intent.IntentEvent.Type.WITHDRAWN;
+import static org.onosproject.net.intent.IntentEvent.Type.WITHDRAW_REQ;
+import static org.osgi.service.component.annotations.ReferenceCardinality.MANDATORY;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Application to test sustained intent throughput.
  */
-@Component(immediate = true)
-@Service(value = IntentPerfInstaller.class)
+@Component(immediate = true, service = IntentPerfInstaller.class)
 public class IntentPerfInstaller {
 
     private final Logger log = getLogger(getClass());
@@ -107,8 +108,8 @@
 
     //FIXME add path length
 
-    @Property(name = "numKeys", intValue = DEFAULT_NUM_KEYS,
-            label = "Number of keys (i.e. unique intents) to generate per instance")
+    //@Property(name = "numKeys", intValue = DEFAULT_NUM_KEYS,
+    //        label = "Number of keys (i.e. unique intents) to generate per instance")
     private int numKeys = DEFAULT_NUM_KEYS;
 
     //TODO implement numWorkers property
@@ -116,39 +117,39 @@
 //              label = "Number of installer threads per instance")
 //    private int numWokers = DEFAULT_NUM_WORKERS;
 
-    @Property(name = "cyclePeriod", intValue = DEFAULT_GOAL_CYCLE_PERIOD,
-            label = "Goal for cycle period (in ms)")
+    //@Property(name = "cyclePeriod", intValue = DEFAULT_GOAL_CYCLE_PERIOD,
+    //        label = "Goal for cycle period (in ms)")
     private int cyclePeriod = DEFAULT_GOAL_CYCLE_PERIOD;
 
-    @Property(name = "numNeighbors", intValue = DEFAULT_NUM_NEIGHBORS,
-            label = "Number of neighbors to generate intents for")
+    //@Property(name = "numNeighbors", intValue = DEFAULT_NUM_NEIGHBORS,
+    //        label = "Number of neighbors to generate intents for")
     private int numNeighbors = DEFAULT_NUM_NEIGHBORS;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected WorkPartitionService partitionService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected ComponentConfigService configService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected IntentPerfCollector sampleCollector;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected ClusterCommunicationService communicationService;
 
     private ExecutorService messageHandlingExecutor;
diff --git a/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfUi.java b/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfUi.java
index a62d9ec..afb55a8 100644
--- a/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfUi.java
+++ b/apps/test/intent-perf/src/main/java/org/onosproject/intentperf/IntentPerfUi.java
@@ -19,12 +19,6 @@
 import com.fasterxml.jackson.databind.node.ObjectNode;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.osgi.ServiceDirectory;
 import org.onosproject.intentperf.IntentPerfCollector.Sample;
 import org.onosproject.ui.RequestHandler;
@@ -33,6 +27,11 @@
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandler;
 import org.onosproject.ui.UiView;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 
 import java.util.Collection;
 import java.util.HashSet;
@@ -45,14 +44,13 @@
 /**
  * Mechanism to stream data to the GUI.
  */
-@Component(immediate = true, enabled = true)
-@Service(value = IntentPerfUi.class)
+@Component(immediate = true, service = IntentPerfUi.class)
 public class IntentPerfUi {
 
     private static final String INTENT_PERF_START = "intentPerfStart";
     private static final String INTENT_PERF_STOP = "intentPerfStop";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     private final Set<StreamingControl> handlers = synchronizedSet(new HashSet<>());
diff --git a/apps/test/loadtest/src/main/java/org/onosproject/loadtest/DistributedConsensusLoadTest.java b/apps/test/loadtest/src/main/java/org/onosproject/loadtest/DistributedConsensusLoadTest.java
index 37a36c3..7b7cf1b 100644
--- a/apps/test/loadtest/src/main/java/org/onosproject/loadtest/DistributedConsensusLoadTest.java
+++ b/apps/test/loadtest/src/main/java/org/onosproject/loadtest/DistributedConsensusLoadTest.java
@@ -15,9 +15,23 @@
  */
 package org.onosproject.loadtest;
 
-import static com.google.common.base.Strings.isNullOrEmpty;
-import static org.onlab.util.Tools.get;
-import static org.slf4j.LoggerFactory.getLogger;
+import com.google.common.collect.Lists;
+import com.google.common.util.concurrent.RateLimiter;
+import org.apache.commons.lang.math.RandomUtils;
+import org.onlab.util.Tools;
+import org.onosproject.cfg.ComponentConfigService;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.store.service.AsyncAtomicCounter;
+import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
+import org.slf4j.Logger;
 
 import java.util.Dictionary;
 import java.util.List;
@@ -30,56 +44,38 @@
 import java.util.concurrent.atomic.AtomicLong;
 import java.util.stream.Collectors;
 
-import org.apache.commons.lang.math.RandomUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-import org.onlab.util.Tools;
-import org.onosproject.cfg.ComponentConfigService;
-import org.onosproject.core.ApplicationId;
-import org.onosproject.core.CoreService;
-import org.onosproject.store.service.AsyncAtomicCounter;
-import org.onosproject.store.service.StorageService;
-import org.osgi.service.component.ComponentContext;
-import org.slf4j.Logger;
-
-import com.google.common.collect.Lists;
-import com.google.common.util.concurrent.RateLimiter;
+import static com.google.common.base.Strings.isNullOrEmpty;
+import static org.onlab.util.Tools.get;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Simple application for load testing distributed consensus.
  * <p>
  * This application simply increments as {@link AsyncAtomicCounter} at a configurable rate.
  */
-@Component(immediate = true)
-@Service(value = DistributedConsensusLoadTest.class)
+@Component(immediate = true, service = DistributedConsensusLoadTest.class)
 public class DistributedConsensusLoadTest {
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private ApplicationId appId;
 
     private AtomicBoolean stopped = new AtomicBoolean(false);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     private static final int DEFAULT_RATE = 100;
     private static final int TOTAL_COUNTERS = 50;
 
-    @Property(name = "rate", intValue = DEFAULT_RATE,
-            label = "Total number of increments per second to the atomic counter")
+    //@Property(name = "rate", intValue = DEFAULT_RATE,
+    //        label = "Total number of increments per second to the atomic counter")
     protected int rate = 0;
 
     private final AtomicLong previousReportTime = new AtomicLong(0);
diff --git a/apps/test/messaging-perf/src/main/java/org/onosproject/messagingperf/MessagingPerfApp.java b/apps/test/messaging-perf/src/main/java/org/onosproject/messagingperf/MessagingPerfApp.java
index de739cc..c1b2513 100644
--- a/apps/test/messaging-perf/src/main/java/org/onosproject/messagingperf/MessagingPerfApp.java
+++ b/apps/test/messaging-perf/src/main/java/org/onosproject/messagingperf/MessagingPerfApp.java
@@ -15,6 +15,29 @@
  */
 package org.onosproject.messagingperf;
 
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
+import com.google.common.util.concurrent.MoreExecutors;
+import org.onlab.util.BoundedThreadPool;
+import org.onlab.util.KryoNamespace;
+import org.onosproject.cfg.ComponentConfigService;
+import org.onosproject.cluster.ClusterService;
+import org.onosproject.cluster.NodeId;
+import org.onosproject.core.CoreService;
+import org.onosproject.store.cluster.messaging.ClusterCommunicationService;
+import org.onosproject.store.cluster.messaging.MessageSubject;
+import org.onosproject.store.serializers.KryoNamespaces;
+import org.onosproject.store.service.Serializer;
+import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.slf4j.Logger;
+
 import java.util.Dictionary;
 import java.util.List;
 import java.util.Objects;
@@ -29,57 +52,29 @@
 import java.util.function.Function;
 import java.util.stream.IntStream;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-import org.onlab.util.BoundedThreadPool;
-import org.onlab.util.KryoNamespace;
-import org.onosproject.cfg.ComponentConfigService;
-import org.onosproject.cluster.ClusterService;
-import org.onosproject.cluster.NodeId;
-import org.onosproject.core.CoreService;
-import org.onosproject.store.cluster.messaging.ClusterCommunicationService;
-import org.onosproject.store.cluster.messaging.MessageSubject;
-import org.onosproject.store.serializers.KryoNamespaces;
-import org.onosproject.store.service.Serializer;
-import org.osgi.service.component.ComponentContext;
-import org.slf4j.Logger;
-
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.Lists;
-import com.google.common.collect.Sets;
-import com.google.common.util.concurrent.MoreExecutors;
-
 import static com.google.common.base.Strings.isNullOrEmpty;
-import static org.apache.felix.scr.annotations.ReferenceCardinality.MANDATORY_UNARY;
 import static org.onlab.util.Tools.get;
 import static org.onlab.util.Tools.groupedThreads;
+import static org.osgi.service.component.annotations.ReferenceCardinality.MANDATORY;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Application for measuring cluster messaging performance.
  */
-@Component(immediate = true, enabled = true)
-@Service(value = MessagingPerfApp.class)
+@Component(immediate = true, service = MessagingPerfApp.class)
 public class MessagingPerfApp {
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected ClusterCommunicationService communicationService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected ComponentConfigService configService;
 
     private static final MessageSubject TEST_UNICAST_MESSAGE_TOPIC =
@@ -91,20 +86,20 @@
     private static final int DEFAULT_SENDER_THREAD_POOL_SIZE = 2;
     private static final int DEFAULT_RECEIVER_THREAD_POOL_SIZE = 2;
 
-    @Property(name = "totalSenderThreads", intValue = DEFAULT_SENDER_THREAD_POOL_SIZE,
-            label = "Number of sender threads")
+    //@Property(name = "totalSenderThreads", intValue = DEFAULT_SENDER_THREAD_POOL_SIZE,
+    //        label = "Number of sender threads")
     protected int totalSenderThreads = DEFAULT_SENDER_THREAD_POOL_SIZE;
 
-    @Property(name = "totalReceiverThreads", intValue = DEFAULT_RECEIVER_THREAD_POOL_SIZE,
-            label = "Number of receiver threads")
+    //@Property(name = "totalReceiverThreads", intValue = DEFAULT_RECEIVER_THREAD_POOL_SIZE,
+    //        label = "Number of receiver threads")
     protected int totalReceiverThreads = DEFAULT_RECEIVER_THREAD_POOL_SIZE;
 
-    @Property(name = "serializationOn", boolValue = true,
-            label = "Turn serialization on/off")
+    //@Property(name = "serializationOn", boolValue = true,
+    //        label = "Turn serialization on/off")
     private boolean serializationOn = true;
 
-    @Property(name = "receiveOnIOLoopThread", boolValue = false,
-            label = "Set this to true to handle message on IO thread")
+    //@Property(name = "receiveOnIOLoopThread", boolValue = false,
+    //        label = "Set this to true to handle message on IO thread")
     private boolean receiveOnIOLoopThread = false;
 
     protected int reportIntervalSeconds = 1;
diff --git a/apps/test/netcfg-monitor/src/main/java/org/onosproject/netcfgmonitor/NetCfgEventMonitor.java b/apps/test/netcfg-monitor/src/main/java/org/onosproject/netcfgmonitor/NetCfgEventMonitor.java
index eb4c299..03ee8ba 100644
--- a/apps/test/netcfg-monitor/src/main/java/org/onosproject/netcfgmonitor/NetCfgEventMonitor.java
+++ b/apps/test/netcfg-monitor/src/main/java/org/onosproject/netcfgmonitor/NetCfgEventMonitor.java
@@ -16,10 +16,10 @@
 
 package org.onosproject.netcfgmonitor;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
 import org.onosproject.net.config.NetworkConfigEvent;
 import org.onosproject.net.config.NetworkConfigListener;
 import org.onosproject.net.config.NetworkConfigService;
diff --git a/apps/test/primitive-perf/src/main/java/org/onosproject/primitiveperf/PrimitivePerfApp.java b/apps/test/primitive-perf/src/main/java/org/onosproject/primitiveperf/PrimitivePerfApp.java
index 4a36ebe..9c62710 100644
--- a/apps/test/primitive-perf/src/main/java/org/onosproject/primitiveperf/PrimitivePerfApp.java
+++ b/apps/test/primitive-perf/src/main/java/org/onosproject/primitiveperf/PrimitivePerfApp.java
@@ -15,6 +15,25 @@
  */
 package org.onosproject.primitiveperf;
 
+import com.google.common.collect.Lists;
+import org.onosproject.cfg.ComponentConfigService;
+import org.onosproject.cluster.ClusterService;
+import org.onosproject.cluster.ControllerNode;
+import org.onosproject.cluster.NodeId;
+import org.onosproject.store.serializers.KryoNamespaces;
+import org.onosproject.store.service.AtomicValue;
+import org.onosproject.store.service.AtomicValueEventListener;
+import org.onosproject.store.service.ConsistentMap;
+import org.onosproject.store.service.Serializer;
+import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.slf4j.Logger;
+
 import java.util.ArrayList;
 import java.util.Dictionary;
 import java.util.List;
@@ -28,39 +47,17 @@
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicLong;
 
-import com.google.common.collect.Lists;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.Service;
-import org.onosproject.cfg.ComponentConfigService;
-import org.onosproject.cluster.ClusterService;
-import org.onosproject.cluster.ControllerNode;
-import org.onosproject.cluster.NodeId;
-import org.onosproject.store.serializers.KryoNamespaces;
-import org.onosproject.store.service.AtomicValue;
-import org.onosproject.store.service.AtomicValueEventListener;
-import org.onosproject.store.service.ConsistentMap;
-import org.onosproject.store.service.Serializer;
-import org.onosproject.store.service.StorageService;
-import org.osgi.service.component.ComponentContext;
-import org.slf4j.Logger;
-
 import static com.google.common.base.Strings.isNullOrEmpty;
 import static java.lang.System.currentTimeMillis;
-import static org.apache.felix.scr.annotations.ReferenceCardinality.MANDATORY_UNARY;
 import static org.onlab.util.Tools.get;
 import static org.onlab.util.Tools.groupedThreads;
+import static org.osgi.service.component.annotations.ReferenceCardinality.MANDATORY;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Application to test sustained primitive throughput.
  */
-@Component(immediate = true)
-@Service(value = PrimitivePerfApp.class)
+@Component(immediate = true, service = PrimitivePerfApp.class)
 public class PrimitivePerfApp {
 
     private final Logger log = getLogger(getClass());
@@ -79,64 +76,64 @@
 
     private static final char[] CHARS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789".toCharArray();
 
-    @Property(
-        name = "numClients",
-        intValue = DEFAULT_NUM_CLIENTS,
-        label = "Number of clients to use to submit writes")
+    //@Property(
+    //    name = "numClients",
+    //    intValue = DEFAULT_NUM_CLIENTS,
+    //    label = "Number of clients to use to submit writes")
     private int numClients = DEFAULT_NUM_CLIENTS;
 
-    @Property(
-        name = "writePercentage",
-        intValue = DEFAULT_WRITE_PERCENTAGE,
-        label = "Percentage of operations to perform as writes")
+    //@Property(
+    //    name = "writePercentage",
+    //    intValue = DEFAULT_WRITE_PERCENTAGE,
+    //    label = "Percentage of operations to perform as writes")
     private int writePercentage = DEFAULT_WRITE_PERCENTAGE;
 
-    @Property(
-        name = "numKeys",
-        intValue = DEFAULT_NUM_KEYS,
-        label = "Number of unique keys to write")
+    //@Property(
+    //    name = "numKeys",
+    //    intValue = DEFAULT_NUM_KEYS,
+    //    label = "Number of unique keys to write")
     private int numKeys = DEFAULT_NUM_KEYS;
 
-    @Property(
-        name = "keyLength",
-        intValue = DEFAULT_KEY_LENGTH,
-        label = "Key length")
+    //@Property(
+    //    name = "keyLength",
+    //    intValue = DEFAULT_KEY_LENGTH,
+    //    label = "Key length")
     private int keyLength = DEFAULT_KEY_LENGTH;
 
-    @Property(
-        name = "numValues",
-        intValue = DEFAULT_NUM_UNIQUE_VALUES,
-        label = "Number of unique values to write")
+    //@Property(
+    //    name = "numValues",
+    //    intValue = DEFAULT_NUM_UNIQUE_VALUES,
+    //    label = "Number of unique values to write")
     private int numValues = DEFAULT_NUM_UNIQUE_VALUES;
 
-    @Property(
-        name = "valueLength",
-        intValue = DEFAULT_VALUE_LENGTH,
-        label = "Value length")
+    //@Property(
+    //    name = "valueLength",
+    //    intValue = DEFAULT_VALUE_LENGTH,
+    //    label = "Value length")
     private int valueLength = DEFAULT_VALUE_LENGTH;
 
-    @Property(
-        name = "includeEvents",
-        boolValue = DEFAULT_INCLUDE_EVENTS,
-        label = "Whether to include events in test")
+    //@Property(
+    //    name = "includeEvents",
+    //    boolValue = DEFAULT_INCLUDE_EVENTS,
+    //    label = "Whether to include events in test")
     private boolean includeEvents = DEFAULT_INCLUDE_EVENTS;
 
-    @Property(
-        name = "deterministic",
-        boolValue = DEFAULT_DETERMINISTIC,
-        label = "Whether to deterministically populate entries")
+    //@Property(
+    //    name = "deterministic",
+    //    boolValue = DEFAULT_DETERMINISTIC,
+    //    label = "Whether to deterministically populate entries")
     private boolean deterministic = DEFAULT_DETERMINISTIC;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected ComponentConfigService configService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected PrimitivePerfCollector sampleCollector;
 
     private ExecutorService messageHandlingExecutor;
diff --git a/apps/test/primitive-perf/src/main/java/org/onosproject/primitiveperf/PrimitivePerfCollector.java b/apps/test/primitive-perf/src/main/java/org/onosproject/primitiveperf/PrimitivePerfCollector.java
index 6ea85d0..cbf528e 100644
--- a/apps/test/primitive-perf/src/main/java/org/onosproject/primitiveperf/PrimitivePerfCollector.java
+++ b/apps/test/primitive-perf/src/main/java/org/onosproject/primitiveperf/PrimitivePerfCollector.java
@@ -15,20 +15,7 @@
  */
 package org.onosproject.primitiveperf;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.ControllerNode;
 import org.onosproject.cluster.NodeId;
@@ -36,16 +23,27 @@
 import org.onosproject.store.cluster.messaging.ClusterMessage;
 import org.onosproject.store.cluster.messaging.ClusterMessageHandler;
 import org.onosproject.store.cluster.messaging.MessageSubject;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
 import static org.onlab.util.SharedExecutors.getPoolThreadExecutor;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Collects and distributes performance samples.
  */
-@Component(immediate = true)
-@Service(value = PrimitivePerfCollector.class)
+@Component(immediate = true, service = PrimitivePerfCollector.class)
 public class PrimitivePerfCollector {
 
     private static final long SAMPLE_TIME_WINDOW_MS = 5_000;
@@ -57,10 +55,10 @@
 
     private static final MessageSubject SAMPLE = new MessageSubject("primitive-perf-sample");
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterCommunicationService communicationService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
     // Auxiliary structures used to accrue data for normalized time interval
diff --git a/apps/test/proxy/src/main/java/org/onosproject/proxytest/ProxyTest.java b/apps/test/proxy/src/main/java/org/onosproject/proxytest/ProxyTest.java
index 1edc4a6..920f53d 100644
--- a/apps/test/proxy/src/main/java/org/onosproject/proxytest/ProxyTest.java
+++ b/apps/test/proxy/src/main/java/org/onosproject/proxytest/ProxyTest.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.proxytest;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cluster.NodeId;
 import org.onosproject.cluster.ProxyFactory;
 import org.onosproject.cluster.ProxyService;
@@ -30,6 +24,11 @@
 import org.onosproject.net.DeviceId;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.Serializer;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import static org.slf4j.LoggerFactory.getLogger;
@@ -37,8 +36,7 @@
 /**
  * Proxy test application.
  */
-@Component(immediate = true)
-@Service(value = ProxyTest.class)
+@Component(immediate = true, service = ProxyTest.class)
 public class ProxyTest {
 
     private static final Serializer SERIALIZER = Serializer.using(KryoNamespaces.API);
@@ -47,13 +45,13 @@
 
     private static final String APP_NAME = "org.onosproject.proxytest";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ProxyService proxyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipProxyService mastershipProxyService;
 
     private ProxyFactory<TestProxy> proxyFactory;
diff --git a/apps/test/route-scale/src/main/java/org/onosproject/routescale/ScaleTestManager.java b/apps/test/route-scale/src/main/java/org/onosproject/routescale/ScaleTestManager.java
index cfc7ad6..d24a4b6 100644
--- a/apps/test/route-scale/src/main/java/org/onosproject/routescale/ScaleTestManager.java
+++ b/apps/test/route-scale/src/main/java/org/onosproject/routescale/ScaleTestManager.java
@@ -18,14 +18,6 @@
 
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
@@ -53,6 +45,12 @@
 import org.onosproject.routeservice.Route;
 import org.onosproject.routeservice.RouteAdminService;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -64,39 +62,38 @@
 import static com.google.common.base.Strings.isNullOrEmpty;
 import static org.onlab.util.Tools.get;
 
-@Component(immediate = true)
-@Service(value = ScaleTestManager.class)
+@Component(immediate = true, service = ScaleTestManager.class)
 public class ScaleTestManager {
 
     private Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ApplicationService applicationService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostAdminService hostAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteAdminService routeAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
-    @Property(name = "flowCount", intValue = 0,
-            label = "Number of flows to be maintained in the system")
+    //@Property(name = "flowCount", intValue = 0,
+    //        label = "Number of flows to be maintained in the system")
     private int flowCount = 0;
 
-    @Property(name = "routeCount", intValue = 0,
-            label = "Number of routes to be maintained in the system")
+    //@Property(name = "routeCount", intValue = 0,
+    //        label = "Number of routes to be maintained in the system")
     private int routeCount = 0;
 
     private final Random random = new Random(System.currentTimeMillis());
diff --git a/apps/test/transaction-perf/src/main/java/org/onosproject/transactionperf/TransactionPerfApp.java b/apps/test/transaction-perf/src/main/java/org/onosproject/transactionperf/TransactionPerfApp.java
index c941bf6..45bdfd6 100644
--- a/apps/test/transaction-perf/src/main/java/org/onosproject/transactionperf/TransactionPerfApp.java
+++ b/apps/test/transaction-perf/src/main/java/org/onosproject/transactionperf/TransactionPerfApp.java
@@ -15,22 +15,6 @@
  */
 package org.onosproject.transactionperf;
 
-import java.util.Comparator;
-import java.util.Dictionary;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicInteger;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Modified;
-import org.apache.felix.scr.annotations.Property;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.cluster.ClusterService;
@@ -42,29 +26,41 @@
 import org.onosproject.store.service.TransactionContext;
 import org.onosproject.store.service.TransactionalMap;
 import org.osgi.service.component.ComponentContext;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Modified;
+import org.osgi.service.component.annotations.Reference;
 import org.slf4j.Logger;
 
+import java.util.Comparator;
+import java.util.Dictionary;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+
 import static com.google.common.base.Strings.isNullOrEmpty;
-import static org.apache.felix.scr.annotations.ReferenceCardinality.MANDATORY_UNARY;
 import static org.onlab.util.Tools.get;
 import static org.onlab.util.Tools.groupedThreads;
+import static org.osgi.service.component.annotations.ReferenceCardinality.MANDATORY;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Application for measuring transaction performance.
  */
-@Component(immediate = true, enabled = true)
-@Service(value = TransactionPerfApp.class)
+@Component(immediate = true, service = TransactionPerfApp.class)
 public class TransactionPerfApp {
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = MANDATORY)
     protected ComponentConfigService configService;
 
     private static final String DEFAULT_MAP_NAME = "transaction-perf";
@@ -75,28 +71,28 @@
     private static final int DEFAULT_REPORT_INTERVAL_SECONDS = 1;
     private static final String KEY_PREFIX = "key";
 
-    @Property(name = "mapName", value = DEFAULT_MAP_NAME,
-            label = "The name of the map to use for testing")
+    //@Property(name = "mapName", value = DEFAULT_MAP_NAME,
+    //        label = "The name of the map to use for testing")
     protected String mapName = DEFAULT_MAP_NAME;
 
-    @Property(name = "readPercentage", doubleValue = DEFAULT_READ_PERCENTAGE,
-            label = "Percentage of reads to perform")
+    //@Property(name = "readPercentage", doubleValue = DEFAULT_READ_PERCENTAGE,
+    //        label = "Percentage of reads to perform")
     protected double readPercentage = DEFAULT_READ_PERCENTAGE;
 
-    @Property(name = "totalOperationsPerTransaction", intValue = DEFAULT_TOTAL_OPERATIONS,
-            label = "Number of operations to perform within each transaction")
+    //@Property(name = "totalOperationsPerTransaction", intValue = DEFAULT_TOTAL_OPERATIONS,
+    //        label = "Number of operations to perform within each transaction")
     protected int totalOperationsPerTransaction = DEFAULT_TOTAL_OPERATIONS;
 
-    @Property(name = "withContention", boolValue = DEFAULT_WITH_CONTENTION,
-            label = "Whether to test transactions with contention from all nodes")
+    //@Property(name = "withContention", boolValue = DEFAULT_WITH_CONTENTION,
+    //        label = "Whether to test transactions with contention from all nodes")
     protected boolean withContention = DEFAULT_WITH_CONTENTION;
 
-    @Property(name = "withRetries", boolValue = DEFAULT_WITH_RETRIES,
-            label = "Whether to retry transactions until success")
+    //@Property(name = "withRetries", boolValue = DEFAULT_WITH_RETRIES,
+    //        label = "Whether to retry transactions until success")
     protected boolean withRetries = DEFAULT_WITH_RETRIES;
 
-    @Property(name = "reportIntervalSeconds", intValue = DEFAULT_REPORT_INTERVAL_SECONDS,
-            label = "The frequency with which to report performance in seconds")
+    //@Property(name = "reportIntervalSeconds", intValue = DEFAULT_REPORT_INTERVAL_SECONDS,
+    //        label = "The frequency with which to report performance in seconds")
     protected int reportIntervalSeconds = 1;
 
     private ExecutorService testRunner =
diff --git a/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/DistributedTeTopologyStore.java b/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/DistributedTeTopologyStore.java
index e3a63b3..4b37857 100644
--- a/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/DistributedTeTopologyStore.java
+++ b/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/DistributedTeTopologyStore.java
@@ -15,41 +15,10 @@
  */
 package org.onosproject.tetopology.management.impl;
 
-import static org.onosproject.tetopology.management.api.OptimizationType.NOT_OPTIMIZED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_UPDATED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_UPDATED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_UPDATED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_UPDATED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_UPDATED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_UPDATED;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.BitSet;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.LinkedBlockingQueue;
-
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.collections.MapUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.net.DeviceId;
 import org.onosproject.store.AbstractStore;
@@ -123,16 +92,44 @@
 import org.onosproject.tetopology.management.api.node.TerminationPointKey;
 import org.onosproject.tetopology.management.api.node.TtpKey;
 import org.onosproject.tetopology.management.api.node.TunnelTerminationPoint;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.google.common.collect.Lists;
-import com.google.common.collect.Maps;
+import java.util.BitSet;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.LinkedBlockingQueue;
+
+import static org.onosproject.tetopology.management.api.OptimizationType.NOT_OPTIMIZED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_UPDATED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_UPDATED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_UPDATED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_UPDATED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_UPDATED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_UPDATED;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Implementation of the TE network store.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = TeTopologyStore.class)
 public class DistributedTeTopologyStore
     extends AbstractStore<TeTopologyEvent, TeTopologyStoreDelegate>
     implements TeTopologyStore {
@@ -150,7 +147,7 @@
     private static final String TTPKEY_TUNNELTERMINATIONPOINT = "TtpKey-TunnelTerminationPoint";
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
     // Track TE topologies by TE Topology key
     private ConsistentMap<TeTopologyKey, InternalTeTopology> teTopologyConsistentMap;
diff --git a/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/TeTopologyManager.java b/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/TeTopologyManager.java
index 5775a57..a3c0aed 100644
--- a/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/TeTopologyManager.java
+++ b/apps/tetopology/app/src/main/java/org/onosproject/tetopology/management/impl/TeTopologyManager.java
@@ -15,59 +15,17 @@
  */
 package org.onosproject.tetopology.management.impl;
 
-import static java.util.concurrent.Executors.newFixedThreadPool;
-import static org.onlab.util.Tools.groupedThreads;
-import static org.onosproject.net.config.NetworkConfigEvent.Type.CONFIG_ADDED;
-import static org.onosproject.net.config.NetworkConfigEvent.Type.CONFIG_UPDATED;
-import static org.onosproject.net.config.basics.SubjectFactories.APP_SUBJECT_FACTORY;
-import static org.onosproject.tetopology.management.api.OptimizationType.NOT_OPTIMIZED;
-import static org.onosproject.tetopology.management.api.TeTopology.BIT_CUSTOMIZED;
-import static org.onosproject.tetopology.management.api.TeTopology.BIT_LEARNT;
-import static org.onosproject.tetopology.management.api.TeTopology.BIT_MERGED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_UPDATED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_UPDATED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_UPDATED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_UPDATED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_REMOVED;
-import static org.onosproject.tetopology.management.api.link.TeLink.BIT_ACCESS_INTERDOMAIN;
-import static org.onosproject.tetopology.management.impl.TeMgrUtil.linkBuilder;
-import static org.onosproject.tetopology.management.impl.TeMgrUtil.networkBuilder;
-import static org.onosproject.tetopology.management.impl.TeMgrUtil.networkLinkKey;
-import static org.onosproject.tetopology.management.impl.TeMgrUtil.networkNodeKey;
-import static org.onosproject.tetopology.management.impl.TeMgrUtil.nodeBuilder;
-import static org.onosproject.tetopology.management.impl.TeMgrUtil.toNetworkId;
-import static org.onosproject.tetopology.management.impl.TeMgrUtil.toNetworkLinkId;
-
-import java.util.BitSet;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.ExecutorService;
-
+import com.google.common.base.MoreObjects;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.collections.MapUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.Ip4Address;
 import org.onosproject.app.ApplicationException;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.net.config.ConfigException;
 import org.onosproject.net.DeviceId;
+import org.onosproject.net.config.ConfigException;
 import org.onosproject.net.config.ConfigFactory;
 import org.onosproject.net.config.NetworkConfigEvent;
 import org.onosproject.net.config.NetworkConfigListener;
@@ -123,18 +81,57 @@
 import org.onosproject.tetopology.management.api.node.TerminationPointKey;
 import org.onosproject.tetopology.management.api.node.TtpKey;
 import org.onosproject.tetopology.management.api.node.TunnelTerminationPoint;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import com.google.common.base.MoreObjects;
-import com.google.common.collect.Lists;
-import com.google.common.collect.Maps;
+import java.util.BitSet;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ExecutorService;
+
+import static java.util.concurrent.Executors.newFixedThreadPool;
+import static org.onlab.util.Tools.groupedThreads;
+import static org.onosproject.net.config.NetworkConfigEvent.Type.CONFIG_ADDED;
+import static org.onosproject.net.config.NetworkConfigEvent.Type.CONFIG_UPDATED;
+import static org.onosproject.net.config.basics.SubjectFactories.APP_SUBJECT_FACTORY;
+import static org.onosproject.tetopology.management.api.OptimizationType.NOT_OPTIMIZED;
+import static org.onosproject.tetopology.management.api.TeTopology.BIT_CUSTOMIZED;
+import static org.onosproject.tetopology.management.api.TeTopology.BIT_LEARNT;
+import static org.onosproject.tetopology.management.api.TeTopology.BIT_MERGED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.LINK_UPDATED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NODE_UPDATED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_LINK_UPDATED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_NODE_UPDATED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_REMOVED;
+import static org.onosproject.tetopology.management.api.link.TeLink.BIT_ACCESS_INTERDOMAIN;
+import static org.onosproject.tetopology.management.impl.TeMgrUtil.linkBuilder;
+import static org.onosproject.tetopology.management.impl.TeMgrUtil.networkBuilder;
+import static org.onosproject.tetopology.management.impl.TeMgrUtil.networkLinkKey;
+import static org.onosproject.tetopology.management.impl.TeMgrUtil.networkNodeKey;
+import static org.onosproject.tetopology.management.impl.TeMgrUtil.nodeBuilder;
+import static org.onosproject.tetopology.management.impl.TeMgrUtil.toNetworkId;
+import static org.onosproject.tetopology.management.impl.TeMgrUtil.toNetworkLinkId;
 
 /**
  * Implementation of the topology management service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = { TeTopologyService.class, TeTopologyProviderRegistry.class })
 public class TeTopologyManager
     extends AbstractListenerProviderRegistry<TeTopologyEvent, TeTopologyListener,
                                              TeTopologyProvider, TeTopologyProviderService>
@@ -154,25 +151,25 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceProviderRegistry deviceProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkProviderRegistry linkProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     public TeTopologyStore store;
 
     private TeTopologyStoreDelegate delegate = this::post;
diff --git a/apps/tetopology/app/src/test/java/org/onosproject/tetopology/management/SimpleTeTopologyStore.java b/apps/tetopology/app/src/test/java/org/onosproject/tetopology/management/SimpleTeTopologyStore.java
index 7f010fa..24dcad5 100644
--- a/apps/tetopology/app/src/test/java/org/onosproject/tetopology/management/SimpleTeTopologyStore.java
+++ b/apps/tetopology/app/src/test/java/org/onosproject/tetopology/management/SimpleTeTopologyStore.java
@@ -15,24 +15,10 @@
  */
 package org.onosproject.tetopology.management;
 
-import static org.onosproject.tetopology.management.api.OptimizationType.NOT_OPTIMIZED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_REMOVED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_ADDED;
-import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_REMOVED;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.BitSet;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.BlockingQueue;
-
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.collections.MapUtils;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.net.DeviceId;
 import org.onosproject.store.AbstractStore;
 import org.onosproject.tetopology.management.api.CommonTopologyData;
@@ -81,16 +67,27 @@
 import org.onosproject.tetopology.management.impl.TeTopologyMapEvent;
 import org.onosproject.tetopology.management.impl.TeTopologyStore;
 import org.onosproject.tetopology.management.impl.TeTopologyStoreDelegate;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
 import org.slf4j.Logger;
 
-import com.google.common.collect.Lists;
-import com.google.common.collect.Maps;
+import java.util.BitSet;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.BlockingQueue;
+
+import static org.onosproject.tetopology.management.api.OptimizationType.NOT_OPTIMIZED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.NETWORK_REMOVED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_ADDED;
+import static org.onosproject.tetopology.management.api.TeTopologyEvent.Type.TE_TOPOLOGY_REMOVED;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Implementation of the TE network store.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = TeTopologyStore.class)
 public class SimpleTeTopologyStore
         extends AbstractStore<TeTopologyEvent, TeTopologyStoreDelegate>
         implements TeTopologyStore {
diff --git a/apps/tetunnel/app/src/main/java/org/onosproject/tetunnel/impl/DistributedTeTunnelStore.java b/apps/tetunnel/app/src/main/java/org/onosproject/tetunnel/impl/DistributedTeTunnelStore.java
index 8589b8d..e9da5e4 100644
--- a/apps/tetunnel/app/src/main/java/org/onosproject/tetunnel/impl/DistributedTeTunnelStore.java
+++ b/apps/tetunnel/app/src/main/java/org/onosproject/tetunnel/impl/DistributedTeTunnelStore.java
@@ -17,12 +17,6 @@
 package org.onosproject.tetunnel.impl;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.incubator.net.tunnel.TunnelId;
 import org.onosproject.store.serializers.KryoNamespaces;
@@ -30,11 +24,16 @@
 import org.onosproject.store.service.LogicalClockService;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.tetopology.management.api.TeTopologyKey;
+import org.onosproject.tetunnel.api.TeTunnelStore;
 import org.onosproject.tetunnel.api.lsp.TeLsp;
 import org.onosproject.tetunnel.api.lsp.TeLspKey;
 import org.onosproject.tetunnel.api.tunnel.TeTunnel;
-import org.onosproject.tetunnel.api.TeTunnelStore;
 import org.onosproject.tetunnel.api.tunnel.TeTunnelKey;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -45,16 +44,15 @@
 /**
  * Manages the TE tunnel attributes using an eventually consistent map.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = TeTunnelStore.class)
 public class DistributedTeTunnelStore implements TeTunnelStore {
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LogicalClockService clockService;
 
     private EventuallyConsistentMap<TeTunnelKey, TeTunnel> teTunnels;
diff --git a/apps/tetunnel/app/src/main/java/org/onosproject/tetunnel/impl/TeTunnelManager.java b/apps/tetunnel/app/src/main/java/org/onosproject/tetunnel/impl/TeTunnelManager.java
index b071ce8..cd99d0c 100644
--- a/apps/tetunnel/app/src/main/java/org/onosproject/tetunnel/impl/TeTunnelManager.java
+++ b/apps/tetunnel/app/src/main/java/org/onosproject/tetunnel/impl/TeTunnelManager.java
@@ -16,12 +16,6 @@
 
 package org.onosproject.tetunnel.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.core.GroupId;
@@ -37,15 +31,20 @@
 import org.onosproject.tetopology.management.api.TeTopology;
 import org.onosproject.tetopology.management.api.TeTopologyKey;
 import org.onosproject.tetopology.management.api.TeTopologyService;
-import org.onosproject.tetunnel.api.lsp.TeLsp;
-import org.onosproject.tetunnel.api.lsp.TeLspKey;
-import org.onosproject.tetunnel.api.tunnel.TeTunnel;
 import org.onosproject.tetunnel.api.TeTunnelAdminService;
 import org.onosproject.tetunnel.api.TeTunnelProviderService;
 import org.onosproject.tetunnel.api.TeTunnelService;
 import org.onosproject.tetunnel.api.TeTunnelStore;
+import org.onosproject.tetunnel.api.lsp.TeLsp;
+import org.onosproject.tetunnel.api.lsp.TeLspKey;
+import org.onosproject.tetunnel.api.tunnel.TeTunnel;
 import org.onosproject.tetunnel.api.tunnel.TeTunnelEndpoint;
 import org.onosproject.tetunnel.api.tunnel.TeTunnelKey;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -56,8 +55,8 @@
 /**
  * Implementation of TE tunnel attributes management service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = { TeTunnelService.class, TeTunnelAdminService.class,
+        TeTunnelProviderService.class })
 public class TeTunnelManager implements TeTunnelService, TeTunnelAdminService,
         TeTunnelProviderService {
 
@@ -65,19 +64,19 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTunnelStore store;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TunnelService tunnelService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TunnelAdminService tunnelAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTopologyService teTopologyService;
 
     private ApplicationId appId;
diff --git a/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VbngConfigurationManager.java b/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VbngConfigurationManager.java
index adc6966..20ad02c 100644
--- a/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VbngConfigurationManager.java
+++ b/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VbngConfigurationManager.java
@@ -16,14 +16,13 @@
 package org.onosproject.virtualbng;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
 import org.onlab.packet.MacAddress;
 import org.onosproject.net.ConnectPoint;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -40,8 +39,7 @@
  * Implementation of ConfigurationService which reads virtual BNG
  * configuration from a file.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = VbngConfigurationService.class)
 public class VbngConfigurationManager implements VbngConfigurationService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
diff --git a/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VbngManager.java b/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VbngManager.java
index 35ca7f9..209d11d 100644
--- a/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VbngManager.java
+++ b/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VbngManager.java
@@ -18,12 +18,6 @@
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
@@ -44,6 +38,11 @@
 import org.onosproject.net.intent.IntentService;
 import org.onosproject.net.intent.Key;
 import org.onosproject.net.intent.PointToPointIntent;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -63,8 +62,7 @@
  * (3) installs point to point intents for the host configured with private IP
  * address to access Internet
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = VbngService.class)
 public class VbngManager implements VbngService {
 
     private static final String APP_NAME = "org.onosproject.virtualbng";
@@ -72,16 +70,16 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VbngConfigurationService vbngConfigurationService;
 
     private ApplicationId appId;
diff --git a/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VirtualPublicHosts.java b/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VirtualPublicHosts.java
index 1a45b0a..d483bbf 100644
--- a/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VirtualPublicHosts.java
+++ b/apps/virtualbng/src/main/java/org/onosproject/virtualbng/VirtualPublicHosts.java
@@ -19,11 +19,11 @@
 
 import java.nio.ByteBuffer;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.ARP;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.Ip4Address;
@@ -63,13 +63,13 @@
     private static final String APP_NAME =
             "org.onosproject.virtualbng.VirtualPublicHosts";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VbngConfigurationService vbngConfigService;
 
     private ApplicationId appId;
diff --git a/apps/vpls/src/main/java/org/onosproject/vpls/VplsManager.java b/apps/vpls/src/main/java/org/onosproject/vpls/VplsManager.java
index eab3395..425f77d 100644
--- a/apps/vpls/src/main/java/org/onosproject/vpls/VplsManager.java
+++ b/apps/vpls/src/main/java/org/onosproject/vpls/VplsManager.java
@@ -16,55 +16,53 @@
 package org.onosproject.vpls;
 
 import com.google.common.collect.ImmutableSet;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
-import org.onosproject.net.intf.Interface;
-import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.EncapsulationType;
 import org.onosproject.net.Host;
 import org.onosproject.net.host.HostEvent;
 import org.onosproject.net.host.HostListener;
 import org.onosproject.net.host.HostService;
+import org.onosproject.net.intf.Interface;
+import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.store.StoreDelegate;
-import org.onosproject.vpls.api.VplsData;
-import org.onosproject.vpls.api.VplsOperationService;
-import org.onosproject.vpls.api.VplsOperation;
 import org.onosproject.vpls.api.Vpls;
+import org.onosproject.vpls.api.VplsData;
+import org.onosproject.vpls.api.VplsOperation;
+import org.onosproject.vpls.api.VplsOperationService;
 import org.onosproject.vpls.api.VplsStore;
 import org.onosproject.vpls.store.VplsStoreEvent;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
 import java.util.Set;
 
-import static java.util.Objects.*;
+import static java.util.Objects.requireNonNull;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Application to create L2 broadcast overlay networks using VLANs.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = Vpls.class)
 public class VplsManager implements Vpls {
     public static final String VPLS_APP = "org.onosproject.vpls";
     private static final String UNSUPPORTED_STORE_EVENT_TYPE =
             "Unsupported store event type {}.";
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VplsStore vplsStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VplsOperationService operationService;
 
     private StoreDelegate<VplsStoreEvent> vplsStoreDelegate;
diff --git a/apps/vpls/src/main/java/org/onosproject/vpls/VplsNeighbourHandler.java b/apps/vpls/src/main/java/org/onosproject/vpls/VplsNeighbourHandler.java
index 2cbd412..fa360bb 100644
--- a/apps/vpls/src/main/java/org/onosproject/vpls/VplsNeighbourHandler.java
+++ b/apps/vpls/src/main/java/org/onosproject/vpls/VplsNeighbourHandler.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.vpls;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.MacAddress;
 import org.onlab.packet.VlanId;
 import org.onosproject.core.ApplicationId;
@@ -59,19 +59,19 @@
     private static final String CAN_NOT_FIND_VPLS =
             "Cannot find VPLS for port {} with VLAN Id {}.";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NeighbourResolutionService neighbourService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VplsStore vplsStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService configService;
 
     private VplsInterfaceListener interfaceListener =
diff --git a/apps/vpls/src/main/java/org/onosproject/vpls/VplsOperationManager.java b/apps/vpls/src/main/java/org/onosproject/vpls/VplsOperationManager.java
index 08d117f..d05670c 100644
--- a/apps/vpls/src/main/java/org/onosproject/vpls/VplsOperationManager.java
+++ b/apps/vpls/src/main/java/org/onosproject/vpls/VplsOperationManager.java
@@ -19,12 +19,6 @@
 import com.google.common.collect.Maps;
 import com.google.common.collect.Queues;
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.Tools;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.LeadershipEvent;
@@ -33,7 +27,6 @@
 import org.onosproject.cluster.NodeId;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.net.intf.Interface;
 import org.onosproject.net.Host;
 import org.onosproject.net.host.HostService;
 import org.onosproject.net.intent.Intent;
@@ -45,12 +38,18 @@
 import org.onosproject.net.intent.Key;
 import org.onosproject.net.intent.MultiPointToSinglePointIntent;
 import org.onosproject.net.intent.SinglePointToMultiPointIntent;
+import org.onosproject.net.intf.Interface;
 import org.onosproject.vpls.api.VplsData;
+import org.onosproject.vpls.api.VplsOperation;
 import org.onosproject.vpls.api.VplsOperationException;
 import org.onosproject.vpls.api.VplsOperationService;
-import org.onosproject.vpls.api.VplsOperation;
 import org.onosproject.vpls.api.VplsStore;
 import org.onosproject.vpls.intent.VplsIntentUtility;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -77,27 +76,26 @@
  * Handles the execution order of the VPLS operations generated by the
  * application.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = VplsOperationService.class)
 public class VplsOperationManager implements VplsOperationService {
     private static final int NUM_THREADS = 4;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VplsStore vplsStore;
 
     private final Logger log = getLogger(getClass());
diff --git a/apps/vpls/src/main/java/org/onosproject/vpls/config/VplsConfigManager.java b/apps/vpls/src/main/java/org/onosproject/vpls/config/VplsConfigManager.java
index 541953e..14a755e 100644
--- a/apps/vpls/src/main/java/org/onosproject/vpls/config/VplsConfigManager.java
+++ b/apps/vpls/src/main/java/org/onosproject/vpls/config/VplsConfigManager.java
@@ -17,11 +17,11 @@
 package org.onosproject.vpls.config;
 
 import com.google.common.collect.Sets;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.cluster.LeadershipService;
 import org.onosproject.cluster.NodeId;
 import org.onosproject.core.ApplicationId;
@@ -67,22 +67,22 @@
     private final NetworkConfigListener configListener =
             new InternalNetworkConfigListener();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry registry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected Vpls vpls;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
     private ScheduledExecutorService reloadExecutor =
diff --git a/apps/vpls/src/main/java/org/onosproject/vpls/store/DistributedVplsStore.java b/apps/vpls/src/main/java/org/onosproject/vpls/store/DistributedVplsStore.java
index 4125399..1730002 100644
--- a/apps/vpls/src/main/java/org/onosproject/vpls/store/DistributedVplsStore.java
+++ b/apps/vpls/src/main/java/org/onosproject/vpls/store/DistributedVplsStore.java
@@ -15,17 +15,11 @@
  */
 package org.onosproject.vpls.store;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
-import org.onosproject.net.intf.Interface;
 import org.onosproject.net.config.NetworkConfigService;
+import org.onosproject.net.intf.Interface;
 import org.onosproject.store.AbstractStore;
 import org.onosproject.store.StoreDelegate;
 import org.onosproject.store.serializers.KryoNamespaces;
@@ -37,9 +31,14 @@
 import org.onosproject.vpls.VplsManager;
 import org.onosproject.vpls.api.VplsData;
 import org.onosproject.vpls.api.VplsOperation;
-import org.onosproject.vpls.config.VplsAppConfig;
 import org.onosproject.vpls.api.VplsStore;
+import org.onosproject.vpls.config.VplsAppConfig;
 import org.onosproject.vpls.config.VplsConfig;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -48,14 +47,13 @@
 import java.util.concurrent.CompletableFuture;
 import java.util.stream.Collectors;
 
-import static java.util.Objects.*;
+import static java.util.Objects.requireNonNull;
 
 /**
  * Implementation of VPLSConfigurationService which reads VPLS configuration
  * from the network configuration service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = VplsStore.class)
 public class DistributedVplsStore
         extends AbstractStore<VplsStoreEvent, StoreDelegate<VplsStoreEvent>>
         implements VplsStore {
@@ -70,13 +68,13 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService networkConfigService;
 
     private EventuallyConsistentMap<String, VplsData> vplsDataStore;
diff --git a/apps/vrouter/src/main/java/org/onosproject/vrouter/Vrouter.java b/apps/vrouter/src/main/java/org/onosproject/vrouter/Vrouter.java
index 972ff24..5410339 100644
--- a/apps/vrouter/src/main/java/org/onosproject/vrouter/Vrouter.java
+++ b/apps/vrouter/src/main/java/org/onosproject/vrouter/Vrouter.java
@@ -16,11 +16,11 @@
 package org.onosproject.vrouter;
 
 import com.google.common.collect.Lists;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.component.ComponentService;
@@ -40,10 +40,10 @@
     private static final String APP_NAME = "org.onosproject.vrouter";
     private static final String DIRECT_HOST_MGR = "org.onosproject.routing.impl.DirectHostManager";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private ComponentService componentService;
 
     private ApplicationId appId;
diff --git a/apps/vtn/sfcmgr/src/main/java/org/onosproject/sfc/manager/impl/SfcManager.java b/apps/vtn/sfcmgr/src/main/java/org/onosproject/sfc/manager/impl/SfcManager.java
index 2bc8e39..d403502 100644
--- a/apps/vtn/sfcmgr/src/main/java/org/onosproject/sfc/manager/impl/SfcManager.java
+++ b/apps/vtn/sfcmgr/src/main/java/org/onosproject/sfc/manager/impl/SfcManager.java
@@ -15,21 +15,7 @@
  */
 package org.onosproject.sfc.manager.impl;
 
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.Collection;
-import java.util.Iterator;
-import java.util.List;
-import java.util.ListIterator;
-import java.util.Set;
-import java.util.UUID;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.collect.Lists;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IPv4;
 import org.onlab.packet.IpAddress;
@@ -81,15 +67,26 @@
 import org.onosproject.vtnrsc.portpairgroup.PortPairGroupService;
 import org.onosproject.vtnrsc.service.VtnRscService;
 import org.onosproject.vtnrsc.virtualport.VirtualPortService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.google.common.collect.Lists;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+import java.util.ListIterator;
+import java.util.Set;
+import java.util.UUID;
+
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Provides implementation of SFC Service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = SfcService.class)
 public class SfcManager implements SfcService {
 
     private final Logger log = getLogger(getClass());
@@ -100,28 +97,28 @@
     private static final int MAX_NSH_SPI_ID = 0x7FFFF;
     private static final int MAX_LOAD_BALANCE_ID = 0x20;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VtnRscService vtnRscService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PortChainService portChainService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PortPairGroupService portPairGroupService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowClassifierService flowClassifierService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VirtualPortService virtualPortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     protected SfcPacketProcessor processor = new SfcPacketProcessor();
diff --git a/apps/vtn/sfcweb/src/main/java/org/onosproject/sfcweb/SfcwebUiTopovComponent.java b/apps/vtn/sfcweb/src/main/java/org/onosproject/sfcweb/SfcwebUiTopovComponent.java
index 049efbb..ddd6fa2 100644
--- a/apps/vtn/sfcweb/src/main/java/org/onosproject/sfcweb/SfcwebUiTopovComponent.java
+++ b/apps/vtn/sfcweb/src/main/java/org/onosproject/sfcweb/SfcwebUiTopovComponent.java
@@ -16,11 +16,11 @@
 package org.onosproject.sfcweb;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -43,7 +43,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // List of application views
diff --git a/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/manager/impl/VtnManager.java b/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/manager/impl/VtnManager.java
index c3c5af9..427aba8 100644
--- a/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/manager/impl/VtnManager.java
+++ b/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/manager/impl/VtnManager.java
@@ -15,29 +15,8 @@
  */
 package org.onosproject.vtn.manager.impl;
 
-import static org.onosproject.net.flow.instructions.ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_SET_TUNNEL_DST;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.nio.ByteBuffer;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.UUID;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.stream.Collectors;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
 import org.onlab.packet.ARP;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IPv4;
@@ -146,69 +125,87 @@
 import org.onosproject.vtnrsc.subnet.SubnetService;
 import org.onosproject.vtnrsc.tenantnetwork.TenantNetworkService;
 import org.onosproject.vtnrsc.virtualport.VirtualPortService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.google.common.collect.Lists;
-import com.google.common.collect.Sets;
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.stream.Collectors;
+
+import static org.onosproject.net.flow.instructions.ExtensionTreatmentType.ExtensionTreatmentTypes.NICIRA_SET_TUNNEL_DST;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Provides implementation of VTNService.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = VtnService.class)
 public class VtnManager implements VtnService {
     private final Logger log = getLogger(getClass());
     private static final String APP_ID = "org.onosproject.app.vtn";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService configService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TenantNetworkService tenantNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VirtualPortService virtualPortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LogicalClockService clockService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected GroupService groupService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SubnetService subnetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VtnRscService vtnRscService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FloatingIpService floatingIpService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouterInterfaceService routerInterfaceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService networkConfigService;
 
     private ApplicationId appId;
@@ -252,7 +249,7 @@
     private static ConsistentMap<String, String> exPortMap;
 
     private VtnL3PacketProcessor l3PacketProcessor = new VtnL3PacketProcessor();
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
     @Activate
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/classifier/impl/ClassifierManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/classifier/impl/ClassifierManager.java
index 378f478..74bf8b6 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/classifier/impl/ClassifierManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/classifier/impl/ClassifierManager.java
@@ -15,34 +15,31 @@
  */
 package org.onosproject.vtnrsc.classifier.impl;
 
-import static org.slf4j.LoggerFactory.getLogger;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.collect.ImmutableList;
 import org.onosproject.net.DeviceId;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.DistributedSet;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.vtnrsc.classifier.ClassifierService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.google.common.collect.ImmutableList;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Provides implementation of the Classifier Service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = ClassifierService.class)
 public class ClassifierManager implements ClassifierService {
 
     private final Logger log = getLogger(ClassifierManager.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private DistributedSet<DeviceId> classifierList;
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/floatingip/impl/FloatingIpManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/floatingip/impl/FloatingIpManager.java
index 6b66506..196d889 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/floatingip/impl/FloatingIpManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/floatingip/impl/FloatingIpManager.java
@@ -15,20 +15,7 @@
  */
 package org.onosproject.vtnrsc.floatingip.impl;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Set;
-import java.util.UUID;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.collect.Sets;
 import org.onlab.packet.IpAddress;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
@@ -42,25 +29,35 @@
 import org.onosproject.vtnrsc.DefaultFloatingIp;
 import org.onosproject.vtnrsc.FloatingIp;
 import org.onosproject.vtnrsc.FloatingIpId;
+import org.onosproject.vtnrsc.RouterId;
 import org.onosproject.vtnrsc.TenantId;
 import org.onosproject.vtnrsc.TenantNetworkId;
 import org.onosproject.vtnrsc.VirtualPortId;
-import org.onosproject.vtnrsc.RouterId;
 import org.onosproject.vtnrsc.floatingip.FloatingIpEvent;
 import org.onosproject.vtnrsc.floatingip.FloatingIpListener;
 import org.onosproject.vtnrsc.floatingip.FloatingIpService;
 import org.onosproject.vtnrsc.router.RouterService;
 import org.onosproject.vtnrsc.tenantnetwork.TenantNetworkService;
 import org.onosproject.vtnrsc.virtualport.VirtualPortService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.google.common.collect.Sets;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Set;
+import java.util.UUID;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Provides implementation of the FloatingIp service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = FloatingIpService.class)
 public class FloatingIpManager implements FloatingIpService {
     private static final String FLOATINGIP_ID_NOT_NULL = "Floatingip ID cannot be null";
     private static final String FLOATINGIP_NOT_NULL = "Floatingip cannot be null";
@@ -79,19 +76,19 @@
     protected EventuallyConsistentMap<FloatingIpId, FloatingIp> floatingIpBindStore;
     protected ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TenantNetworkService tenantNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VirtualPortService virtualPortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouterService routerService;
 
     @Activate
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/flowclassifier/impl/FlowClassifierManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/flowclassifier/impl/FlowClassifierManager.java
index f2396da..216a2c5 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/flowclassifier/impl/FlowClassifierManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/flowclassifier/impl/FlowClassifierManager.java
@@ -15,17 +15,7 @@
  */
 package org.onosproject.vtnrsc.flowclassifier.impl;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.UUID;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.collect.ImmutableList;
 import org.onlab.packet.IpPrefix;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.event.AbstractListenerManager;
@@ -44,15 +34,22 @@
 import org.onosproject.vtnrsc.flowclassifier.FlowClassifierEvent;
 import org.onosproject.vtnrsc.flowclassifier.FlowClassifierListener;
 import org.onosproject.vtnrsc.flowclassifier.FlowClassifierService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.google.common.collect.ImmutableList;
+import java.util.UUID;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Provides implementation of the Flow Classifier Service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = FlowClassifierService.class)
 public class FlowClassifierManager extends AbstractListenerManager<FlowClassifierEvent, FlowClassifierListener>
         implements FlowClassifierService {
 
@@ -68,7 +65,7 @@
     private EventuallyConsistentMapListener<FlowClassifierId, FlowClassifier> flowClassifierListener =
             new InnerFlowClassifierStoreListener();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     @Activate
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portchain/impl/PortChainManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portchain/impl/PortChainManager.java
index f3739f6..6aa6bf3 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portchain/impl/PortChainManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portchain/impl/PortChainManager.java
@@ -15,18 +15,6 @@
  */
 package org.onosproject.vtnrsc.portchain.impl;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.Collections;
-import java.util.UUID;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.event.AbstractListenerManager;
 import org.onosproject.net.DeviceId;
@@ -49,13 +37,23 @@
 import org.onosproject.vtnrsc.portchain.PortChainEvent;
 import org.onosproject.vtnrsc.portchain.PortChainListener;
 import org.onosproject.vtnrsc.portchain.PortChainService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
+import java.util.Collections;
+import java.util.UUID;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
+
 /**
  * Provides implementation of the portChainService.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = PortChainService.class)
 public class PortChainManager extends AbstractListenerManager<PortChainEvent, PortChainListener> implements
         PortChainService {
 
@@ -69,7 +67,7 @@
     private EventuallyConsistentMapListener<PortChainId, PortChain> portChainListener =
             new InnerPortChainStoreListener();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     @Activate
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portchainsfmap/impl/PortChainSfMapManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portchainsfmap/impl/PortChainSfMapManager.java
index 0481d7d..78737b3 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portchainsfmap/impl/PortChainSfMapManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portchainsfmap/impl/PortChainSfMapManager.java
@@ -15,18 +15,8 @@
  */
 package org.onosproject.vtnrsc.portchainsfmap.impl;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.List;
-import java.util.ListIterator;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
 import org.onosproject.vtnrsc.PortChain;
 import org.onosproject.vtnrsc.PortChainId;
 import org.onosproject.vtnrsc.PortPairGroup;
@@ -36,31 +26,38 @@
 import org.onosproject.vtnrsc.portchainsfmap.PortChainSfMapService;
 import org.onosproject.vtnrsc.portpair.PortPairService;
 import org.onosproject.vtnrsc.portpairgroup.PortPairGroupService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Lists;
+import java.util.List;
+import java.util.ListIterator;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Provides implementation of the PortChainSfMapService.
  * A port pair group is nothing but group of similar service functions.
  * A port pair is nothing but a service function.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = PortChainSfMapService.class)
 public class PortChainSfMapManager implements PortChainSfMapService {
 
     private static final String PORT_CHAIN_ID_NULL = "PortChain ID cannot be null";
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PortChainService portChainService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PortPairGroupService portPairGroupService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PortPairService portPairService;
 
     @Activate
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portpair/impl/PortPairManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portpair/impl/PortPairManager.java
index fb97859..47dbe1c 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portpair/impl/PortPairManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portpair/impl/PortPairManager.java
@@ -15,18 +15,6 @@
  */
 package org.onosproject.vtnrsc.portpair.impl;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.Collections;
-import java.util.UUID;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.event.AbstractListenerManager;
 import org.onosproject.store.serializers.KryoNamespaces;
@@ -43,13 +31,23 @@
 import org.onosproject.vtnrsc.portpair.PortPairEvent;
 import org.onosproject.vtnrsc.portpair.PortPairListener;
 import org.onosproject.vtnrsc.portpair.PortPairService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
+import java.util.Collections;
+import java.util.UUID;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
+
 /**
  * Provides implementation of the portPairService.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = PortPairService.class)
 public class PortPairManager extends AbstractListenerManager<PortPairEvent, PortPairListener> implements
         PortPairService {
 
@@ -65,7 +63,7 @@
     private EventuallyConsistentMapListener<PortPairId, PortPair> portPairListener =
             new InnerPortPairStoreListener();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     @Activate
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portpairgroup/impl/PortPairGroupManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portpairgroup/impl/PortPairGroupManager.java
index 4c76c1e..f5ff8e8 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portpairgroup/impl/PortPairGroupManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/portpairgroup/impl/PortPairGroupManager.java
@@ -15,18 +15,6 @@
  */
 package org.onosproject.vtnrsc.portpairgroup.impl;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.Collections;
-import java.util.UUID;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.event.AbstractListenerManager;
 import org.onosproject.store.serializers.KryoNamespaces;
@@ -44,13 +32,23 @@
 import org.onosproject.vtnrsc.portpairgroup.PortPairGroupEvent;
 import org.onosproject.vtnrsc.portpairgroup.PortPairGroupListener;
 import org.onosproject.vtnrsc.portpairgroup.PortPairGroupService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
+import java.util.Collections;
+import java.util.UUID;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
+
 /**
  * Provides implementation of the portPairGroupService.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = PortPairGroupService.class)
 public class PortPairGroupManager extends AbstractListenerManager<PortPairGroupEvent, PortPairGroupListener> implements
         PortPairGroupService {
 
@@ -66,7 +64,7 @@
     private EventuallyConsistentMapListener<PortPairGroupId, PortPairGroup> portPairGroupListener =
             new InnerPortPairGroupStoreListener();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     @Activate
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/router/impl/RouterManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/router/impl/RouterManager.java
index 04600f3..8954a38 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/router/impl/RouterManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/router/impl/RouterManager.java
@@ -15,19 +15,7 @@
  */
 package org.onosproject.vtnrsc.router.impl;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Set;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.collect.Sets;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -52,15 +40,24 @@
 import org.onosproject.vtnrsc.subnet.SubnetService;
 import org.onosproject.vtnrsc.tenantnetwork.TenantNetworkService;
 import org.onosproject.vtnrsc.virtualport.VirtualPortService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.google.common.collect.Sets;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Set;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Provides implementation of the Router service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = RouterService.class)
 public class RouterManager implements RouterService {
 
     private static final String ROUTER_ID_NULL = "Router ID cannot be null";
@@ -76,19 +73,19 @@
     protected EventuallyConsistentMap<RouterId, Router> routerStore;
     protected ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TenantNetworkService tenantNetworkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VirtualPortService virtualPortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SubnetService subnetService;
 
     @Activate
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/routerinterface/impl/RouterInterfaceManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/routerinterface/impl/RouterInterfaceManager.java
index dd8d06d..854efd9 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/routerinterface/impl/RouterInterfaceManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/routerinterface/impl/RouterInterfaceManager.java
@@ -15,19 +15,7 @@
  */
 package org.onosproject.vtnrsc.routerinterface.impl;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Set;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.collect.Sets;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -48,15 +36,24 @@
 import org.onosproject.vtnrsc.routerinterface.RouterInterfaceService;
 import org.onosproject.vtnrsc.subnet.SubnetService;
 import org.onosproject.vtnrsc.virtualport.VirtualPortService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.google.common.collect.Sets;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Set;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Provides implementation of the Router interface service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = RouterInterfaceService.class)
 public class RouterInterfaceManager implements RouterInterfaceService {
     private static final String SUBNET_ID_NULL = "Subnet ID cannot be null";
     private static final String ROUTER_INTERFACE_NULL = "Router Interface cannot be null";
@@ -73,19 +70,19 @@
     protected EventuallyConsistentMap<SubnetId, RouterInterface> routerInterfaceStore;
     protected ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VirtualPortService virtualPortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SubnetService subnetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouterService routerService;
 
     @Activate
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/service/impl/VtnRscManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/service/impl/VtnRscManager.java
index d17255f..37f2de4 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/service/impl/VtnRscManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/service/impl/VtnRscManager.java
@@ -15,19 +15,6 @@
  */
 package org.onosproject.vtnrsc.service.impl;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.Set;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
 import org.onlab.util.KryoNamespace;
@@ -90,20 +77,31 @@
 import org.onosproject.vtnrsc.virtualport.VirtualPortEvent;
 import org.onosproject.vtnrsc.virtualport.VirtualPortListener;
 import org.onosproject.vtnrsc.virtualport.VirtualPortService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
+
 /**
  * Provides implementation of the VtnRsc service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = VtnRscService.class)
 public class VtnRscManager extends AbstractListenerManager<VtnRscEvent, VtnRscListener>
                            implements VtnRscService {
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LogicalClockService clockService;
 
     private final Logger log = getLogger(getClass());
@@ -133,29 +131,29 @@
     private static final String CLASSIFIEROVSMAP = "classifierOvsMap";
     private static final String SFFOVSMAP = "sffOvsMap";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouterService routerService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FloatingIpService floatingIpService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouterInterfaceService routerInterfaceService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected VirtualPortService virtualPortService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SubnetService subnetService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TenantNetworkService tenantNetworkService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PortPairService portPairService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PortPairGroupService portPairGroupService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowClassifierService flowClassifierService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PortChainService portChainService;
 
     @Activate
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java
index 8f43d75..5d13cb1 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.vtnrsc.subnet.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -38,6 +32,11 @@
 import org.onosproject.vtnrsc.TenantNetworkId;
 import org.onosproject.vtnrsc.subnet.SubnetService;
 import org.onosproject.vtnrsc.tenantnetwork.TenantNetworkService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Arrays;
@@ -50,8 +49,7 @@
 /**
  * Provides implementation of the Subnet service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = SubnetService.class)
 public class SubnetManager implements SubnetService {
 
     private static final String SUBNET_ID_NULL = "Subnet ID cannot be null";
@@ -65,13 +63,13 @@
     protected Map<SubnetId, Subnet> subnetStore;
     protected ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TenantNetworkService tenantNetworkService;
 
     @Activate
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/tenantnetwork/impl/TenantNetworkManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/tenantnetwork/impl/TenantNetworkManager.java
index d845b72..753e38a 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/tenantnetwork/impl/TenantNetworkManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/tenantnetwork/impl/TenantNetworkManager.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.vtnrsc.tenantnetwork.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.store.serializers.KryoNamespaces;
@@ -33,6 +27,11 @@
 import org.onosproject.vtnrsc.TenantNetwork;
 import org.onosproject.vtnrsc.TenantNetworkId;
 import org.onosproject.vtnrsc.tenantnetwork.TenantNetworkService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Arrays;
@@ -45,8 +44,7 @@
 /**
  * Provides implementation of the tenantNetworkService.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = TenantNetworkService.class)
 public class TenantNetworkManager implements TenantNetworkService {
 
     private static final String NETWORK_ID_NULL = "Network ID cannot be null";
@@ -59,10 +57,10 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
 
diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/virtualport/impl/VirtualPortManager.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/virtualport/impl/VirtualPortManager.java
index 76a4204..5206e3f 100644
--- a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/virtualport/impl/VirtualPortManager.java
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/virtualport/impl/VirtualPortManager.java
@@ -15,22 +15,6 @@
  */
 package org.onosproject.vtnrsc.virtualport.impl;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Iterator;
-import java.util.List;
-import java.util.UUID;
-import java.util.stream.Collectors;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.MacAddress;
 import org.onlab.util.KryoNamespace;
@@ -66,14 +50,28 @@
 import org.onosproject.vtnrsc.virtualport.VirtualPortEvent;
 import org.onosproject.vtnrsc.virtualport.VirtualPortListener;
 import org.onosproject.vtnrsc.virtualport.VirtualPortService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
 /**
  * Provides implementation of the VirtualPort APIs.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = VirtualPortService.class)
 public class VirtualPortManager extends AbstractListenerManager<VirtualPortEvent, VirtualPortListener>
 implements VirtualPortService {
 
@@ -95,13 +93,13 @@
     protected EventuallyConsistentMap<VirtualPortId, VirtualPort> vPortStore;
     protected ApplicationId appId;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TenantNetworkService networkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     private EventuallyConsistentMapListener<VirtualPortId, VirtualPort> virtualPortListener =
diff --git a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/gui/SfcUiExtensionManager.java b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/gui/SfcUiExtensionManager.java
index b28b557..7997d4a 100644
--- a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/gui/SfcUiExtensionManager.java
+++ b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/gui/SfcUiExtensionManager.java
@@ -15,31 +15,28 @@
  */
 package org.onosproject.vtnweb.gui;
 
-import static com.google.common.collect.ImmutableList.of;
-import static org.onosproject.ui.UiView.Category.NETWORK;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.List;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
+import com.google.common.collect.ImmutableList;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
 import org.onosproject.ui.UiView;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
-import com.google.common.collect.ImmutableList;
+import java.util.List;
+
+import static com.google.common.collect.ImmutableList.of;
+import static org.onosproject.ui.UiView.Category.NETWORK;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * service function chain gui.
  */
-@Component(immediate = true, enabled = true)
-@Service(value = SfcUiExtensionManager.class)
+@Component(immediate = true, service = SfcUiExtensionManager.class)
 public class SfcUiExtensionManager {
     private final Logger log = getLogger(getClass());
 
@@ -47,7 +44,7 @@
             SfcUiExtensionManager.class.getClassLoader();
     private static final String GUI = "gui";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // service function chain extension
diff --git a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/VtnCodecRegistrator.java b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/VtnCodecRegistrator.java
index 3add533..33581eb 100644
--- a/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/VtnCodecRegistrator.java
+++ b/apps/vtn/vtnweb/src/main/java/org/onosproject/vtnweb/web/VtnCodecRegistrator.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.vtnweb.web;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.codec.CodecService;
 import org.onosproject.vtnrsc.FlowClassifier;
 import org.onosproject.vtnrsc.PortChain;
@@ -37,7 +37,7 @@
 
     private static Logger log = LoggerFactory.getLogger(VtnCodecRegistrator.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CodecService codecService;
 
     @Activate
diff --git a/apps/yang-gui/src/main/java/org/onosproject/yang/gui/YangModelUiComponent.java b/apps/yang-gui/src/main/java/org/onosproject/yang/gui/YangModelUiComponent.java
index 4337b0f..0456e5e 100644
--- a/apps/yang-gui/src/main/java/org/onosproject/yang/gui/YangModelUiComponent.java
+++ b/apps/yang-gui/src/main/java/org/onosproject/yang/gui/YangModelUiComponent.java
@@ -17,11 +17,11 @@
 package org.onosproject.yang.gui;
 
 import com.google.common.collect.ImmutableList;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.ui.UiExtension;
 import org.onosproject.ui.UiExtensionService;
 import org.onosproject.ui.UiMessageHandlerFactory;
@@ -49,7 +49,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected UiExtensionService uiExtensionService;
 
     // List of application views
diff --git a/apps/yang/src/main/java/org/onosproject/yang/AbstractYangModelRegistrator.java b/apps/yang/src/main/java/org/onosproject/yang/AbstractYangModelRegistrator.java
index a068526..512d6d7 100644
--- a/apps/yang/src/main/java/org/onosproject/yang/AbstractYangModelRegistrator.java
+++ b/apps/yang/src/main/java/org/onosproject/yang/AbstractYangModelRegistrator.java
@@ -16,11 +16,11 @@
 
 package org.onosproject.yang;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onosproject.yang.model.YangModel;
 import org.onosproject.yang.model.YangModuleId;
 import org.onosproject.yang.runtime.AppModuleInfo;
@@ -48,10 +48,10 @@
     protected YangModel model;
     private ModelRegistrationParam registrationParam;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected YangModelRegistry modelRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected YangClassLoaderRegistry sourceResolver;
 
     /**
diff --git a/apps/yang/src/main/java/org/onosproject/yang/impl/YangLiveCompilerManager.java b/apps/yang/src/main/java/org/onosproject/yang/impl/YangLiveCompilerManager.java
index 10f821e..7e94639 100644
--- a/apps/yang/src/main/java/org/onosproject/yang/impl/YangLiveCompilerManager.java
+++ b/apps/yang/src/main/java/org/onosproject/yang/impl/YangLiveCompilerManager.java
@@ -18,14 +18,13 @@
 
 import com.google.common.io.ByteStreams;
 import com.google.common.io.Files;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.util.FilePathValidator;
 import org.onosproject.yang.YangLiveCompilerService;
 import org.onosproject.yang.compiler.tool.DefaultYangCompilationParam;
 import org.onosproject.yang.compiler.tool.YangCompilerManager;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -52,8 +51,7 @@
 /**
  * Represents implementation of YANG live compiler manager.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = YangLiveCompilerService.class)
 public class YangLiveCompilerManager implements YangLiveCompilerService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
diff --git a/apps/yang/src/main/java/org/onosproject/yang/impl/YangRuntimeManager.java b/apps/yang/src/main/java/org/onosproject/yang/impl/YangRuntimeManager.java
index c338c33..fe74bd3 100644
--- a/apps/yang/src/main/java/org/onosproject/yang/impl/YangRuntimeManager.java
+++ b/apps/yang/src/main/java/org/onosproject/yang/impl/YangRuntimeManager.java
@@ -16,12 +16,6 @@
 
 package org.onosproject.yang.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.CoreService;
 import org.onosproject.yang.YangClassLoaderRegistry;
 import org.onosproject.yang.model.ModelConverter;
@@ -51,6 +45,11 @@
 import org.onosproject.yang.runtime.impl.DefaultYangSerializerRegistry;
 import org.onosproject.yang.serializers.json.JsonSerializer;
 import org.onosproject.yang.serializers.xml.XmlSerializer;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -63,8 +62,9 @@
 /**
  * Represents implementation of YANG runtime manager.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = { YangModelRegistry.class,
+        YangSerializerRegistry.class, YangRuntimeService.class, ModelConverter.class,
+        SchemaContextProvider.class, YangClassLoaderRegistry.class })
 public class YangRuntimeManager implements YangModelRegistry,
         YangSerializerRegistry, YangRuntimeService, ModelConverter,
         SchemaContextProvider, YangClassLoaderRegistry {
@@ -72,7 +72,7 @@
     private static final String APP_ID = "org.onosproject.yang";
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     private DefaultYangModelRegistry modelRegistry;
diff --git a/apps/yms/app/src/main/java/org/onosproject/yms/app/ymsm/YmsManager.java b/apps/yms/app/src/main/java/org/onosproject/yms/app/ymsm/YmsManager.java
index 1af2302..b3e37c1 100644
--- a/apps/yms/app/src/main/java/org/onosproject/yms/app/ymsm/YmsManager.java
+++ b/apps/yms/app/src/main/java/org/onosproject/yms/app/ymsm/YmsManager.java
@@ -16,12 +16,6 @@
 
 package org.onosproject.yms.app.ymsm;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.core.IdGenerator;
@@ -47,6 +41,11 @@
 import org.onosproject.yms.ynh.YangNotificationService;
 import org.onosproject.yms.ysr.YangModuleIdentifier;
 import org.onosproject.yms.ysr.YangModuleLibrary;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -61,8 +60,7 @@
 /**
  * Represents implementation of YANG management system manager.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = YmsService.class)
 public class YmsManager
         implements YmsService {
 
@@ -79,7 +77,7 @@
     private YangNotificationExtendedService ynhExtendedService;
     private YangModuleLibrary library;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
     @Activate
diff --git a/apps/yms/app/src/main/java/org/onosproject/yms/app/ypm/YpmManager.java b/apps/yms/app/src/main/java/org/onosproject/yms/app/ypm/YpmManager.java
index 954511a..8e6238f 100644
--- a/apps/yms/app/src/main/java/org/onosproject/yms/app/ypm/YpmManager.java
+++ b/apps/yms/app/src/main/java/org/onosproject/yms/app/ypm/YpmManager.java
@@ -16,22 +16,20 @@
 
 package org.onosproject.yms.app.ypm;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.yms.ydt.YdtContext;
+import org.onosproject.yms.ypm.DefaultYpmNode;
 import org.onosproject.yms.ypm.YpmContext;
 import org.onosproject.yms.ypm.YpmService;
-import org.onosproject.yms.ypm.DefaultYpmNode;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 /**
  * Represents implementation of YANG protocol metadata manager.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = YpmService.class)
 public class YpmManager implements YpmService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());