[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/providers/bgp/cfg/src/main/java/org/onosproject/provider/bgp/cfg/impl/BgpAppConfig.java b/providers/bgp/cfg/src/main/java/org/onosproject/provider/bgp/cfg/impl/BgpAppConfig.java
index 23a4f5a..9f1710a 100644
--- a/providers/bgp/cfg/src/main/java/org/onosproject/provider/bgp/cfg/impl/BgpAppConfig.java
+++ b/providers/bgp/cfg/src/main/java/org/onosproject/provider/bgp/cfg/impl/BgpAppConfig.java
@@ -16,8 +16,8 @@
 package org.onosproject.provider.bgp.cfg.impl;
 
 import com.fasterxml.jackson.databind.JsonNode;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.osgi.DefaultServiceDirectory;
 import org.onlab.packet.IpAddress;
 import org.onosproject.bgp.controller.BgpCfg;
@@ -38,7 +38,7 @@
  * Configuration object for BGP.
  */
 public class BgpAppConfig extends Config<ApplicationId> {
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     BgpController bgpController;
 
     BgpCfg bgpConfig = null;
diff --git a/providers/bgp/cfg/src/main/java/org/onosproject/provider/bgp/cfg/impl/BgpCfgProvider.java b/providers/bgp/cfg/src/main/java/org/onosproject/provider/bgp/cfg/impl/BgpCfgProvider.java
index ad06c1d..c35f4f0 100644
--- a/providers/bgp/cfg/src/main/java/org/onosproject/provider/bgp/cfg/impl/BgpCfgProvider.java
+++ b/providers/bgp/cfg/src/main/java/org/onosproject/provider/bgp/cfg/impl/BgpCfgProvider.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.provider.bgp.cfg.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.bgp.controller.BgpCfg;
 import org.onosproject.bgp.controller.BgpPeerCfg;
@@ -56,16 +56,16 @@
 
     static final String PROVIDER_ID = "org.onosproject.provider.bgp.cfg";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected BgpController bgpController;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry configRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService configService;
 
     private final ConfigFactory configFactory =
diff --git a/providers/bgp/route/src/main/java/org/onosproject/provider/bgp/route/impl/BgpRouteProvider.java b/providers/bgp/route/src/main/java/org/onosproject/provider/bgp/route/impl/BgpRouteProvider.java
index c7a9b10..2059e56 100644
--- a/providers/bgp/route/src/main/java/org/onosproject/provider/bgp/route/impl/BgpRouteProvider.java
+++ b/providers/bgp/route/src/main/java/org/onosproject/provider/bgp/route/impl/BgpRouteProvider.java
@@ -13,11 +13,11 @@
 
 package org.onosproject.provider.bgp.route.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.Ip4Address;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.IpPrefix;
@@ -76,10 +76,10 @@
             .getLogger(BgpRouteProvider.class);
 
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected BgpController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EvpnRouteAdminService evpnRouteAdminService;
 
     private final InternalEvpnRouteListener routeListener = new
diff --git a/providers/bgp/topology/src/main/java/org/onosproject/provider/bgp/topology/impl/BgpTopologyProvider.java b/providers/bgp/topology/src/main/java/org/onosproject/provider/bgp/topology/impl/BgpTopologyProvider.java
index b840a89..8439bb9 100644
--- a/providers/bgp/topology/src/main/java/org/onosproject/provider/bgp/topology/impl/BgpTopologyProvider.java
+++ b/providers/bgp/topology/src/main/java/org/onosproject/provider/bgp/topology/impl/BgpTopologyProvider.java
@@ -13,11 +13,11 @@
 
 package org.onosproject.provider.bgp.topology.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.ChassisId;
 import org.onlab.packet.Ip4Address;
 import org.onosproject.bgp.controller.BgpController;
@@ -110,28 +110,28 @@
 
     private static final Logger log = LoggerFactory.getLogger(BgpTopologyProvider.class);
 
-    @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)
     protected BgpController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @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 LabelResourceAdminService labelResourceAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService networkConfigService;
 
     private DeviceProviderService deviceProviderService;
diff --git a/providers/bgpcep/flow/src/main/java/org/onosproject/provider/bgpcep/flow/impl/BgpcepFlowRuleProvider.java b/providers/bgpcep/flow/src/main/java/org/onosproject/provider/bgpcep/flow/impl/BgpcepFlowRuleProvider.java
index 83aaac8..024e8a3 100644
--- a/providers/bgpcep/flow/src/main/java/org/onosproject/provider/bgpcep/flow/impl/BgpcepFlowRuleProvider.java
+++ b/providers/bgpcep/flow/src/main/java/org/onosproject/provider/bgpcep/flow/impl/BgpcepFlowRuleProvider.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.provider.bgpcep.flow.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.net.flow.FlowRule;
 import org.onosproject.net.flow.oldbatch.FlowRuleBatchOperation;
@@ -42,7 +42,7 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleProviderRegistry providerRegistry;
 
     private FlowRuleProviderService providerService;
diff --git a/providers/general/device/src/main/java/org/onosproject/provider/general/device/impl/GeneralDeviceProvider.java b/providers/general/device/src/main/java/org/onosproject/provider/general/device/impl/GeneralDeviceProvider.java
index e5c321e..9918327 100644
--- a/providers/general/device/src/main/java/org/onosproject/provider/general/device/impl/GeneralDeviceProvider.java
+++ b/providers/general/device/src/main/java/org/onosproject/provider/general/device/impl/GeneralDeviceProvider.java
@@ -20,13 +20,6 @@
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Maps;
 import com.google.common.util.concurrent.Striped;
-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.ChassisId;
 import org.onlab.util.ItemNotFoundException;
 import org.onlab.util.Tools;
@@ -79,6 +72,12 @@
 import org.onosproject.net.provider.ProviderId;
 import org.onosproject.provider.general.device.api.GeneralProviderDeviceConfig;
 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.security.SecureRandom;
@@ -132,53 +131,53 @@
     private static final Set<String> PIPELINE_CONFIGURABLE_PROTOCOLS =
             ImmutableSet.of("p4runtime");
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private DeviceProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private ComponentConfigService componentConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private NetworkConfigRegistry cfgService;
 
-    @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 DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private PiPipeconfService pipeconfService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private PiPipeconfWatchdogService pipeconfWatchdogService;
 
     private static final String STATS_POLL_FREQUENCY = "deviceStatsPollFrequency";
     private static final int DEFAULT_STATS_POLL_FREQUENCY = 10;
-    @Property(name = STATS_POLL_FREQUENCY, intValue = DEFAULT_STATS_POLL_FREQUENCY,
-            label = "Configure poll frequency for port status and statistics; " +
-                    "default is 10 sec")
+    //@Property(name = STATS_POLL_FREQUENCY, intValue = DEFAULT_STATS_POLL_FREQUENCY,
+    //        label = "Configure poll frequency for port status and statistics; " +
+    //                "default is 10 sec")
     private int statsPollFrequency = DEFAULT_STATS_POLL_FREQUENCY;
 
     private static final String PROBE_FREQUENCY = "deviceProbeFrequency";
     private static final int DEFAULT_PROBE_FREQUENCY = 10;
-    @Property(name = PROBE_FREQUENCY, intValue = DEFAULT_PROBE_FREQUENCY,
-            label = "Configure probe frequency for checking device availability; " +
-                    "default is 10 sec")
+    //@Property(name = PROBE_FREQUENCY, intValue = DEFAULT_PROBE_FREQUENCY,
+    //        label = "Configure probe frequency for checking device availability; " +
+    //                "default is 10 sec")
     private int probeFrequency = DEFAULT_PROBE_FREQUENCY;
 
     private static final String OP_TIMEOUT_SHORT = "deviceOperationTimeoutShort";
     private static final int DEFAULT_OP_TIMEOUT_SHORT = 10;
-    @Property(name = OP_TIMEOUT_SHORT, intValue = DEFAULT_OP_TIMEOUT_SHORT,
-            label = "Configure timeout in seconds for device operations " +
-                    "that are supposed to take a short time " +
-                    "(e.g. checking device reachability); default is 10 seconds")
+    //@Property(name = OP_TIMEOUT_SHORT, intValue = DEFAULT_OP_TIMEOUT_SHORT,
+    //        label = "Configure timeout in seconds for device operations " +
+    //                "that are supposed to take a short time " +
+    //                "(e.g. checking device reachability); default is 10 seconds")
     private int opTimeoutShort = DEFAULT_OP_TIMEOUT_SHORT;
 
     //FIXME to be removed when netcfg will issue device events in a bundle or
diff --git a/providers/host/src/main/java/org/onosproject/provider/host/impl/HostLocationProvider.java b/providers/host/src/main/java/org/onosproject/provider/host/impl/HostLocationProvider.java
index 768c4fa..434cefc 100644
--- a/providers/host/src/main/java/org/onosproject/provider/host/impl/HostLocationProvider.java
+++ b/providers/host/src/main/java/org/onosproject/provider/host/impl/HostLocationProvider.java
@@ -16,14 +16,6 @@
 package org.onosproject.provider.host.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.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.BasePacket;
 import org.onlab.packet.DHCP;
@@ -54,6 +46,12 @@
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
+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.config.ConfigFactory;
 import org.onosproject.net.config.NetworkConfigEvent;
 import org.onosproject.net.config.NetworkConfigListener;
@@ -62,13 +60,6 @@
 import org.onosproject.net.config.basics.BasicHostConfig;
 import org.onosproject.net.config.basics.HostLearningConfig;
 import org.onosproject.net.config.basics.SubjectFactories;
-import org.onosproject.net.intf.InterfaceService;
-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.device.DeviceEvent;
 import org.onosproject.net.device.DeviceListener;
 import org.onosproject.net.device.DeviceService;
@@ -82,6 +73,7 @@
 import org.onosproject.net.host.HostProviderRegistry;
 import org.onosproject.net.host.HostProviderService;
 import org.onosproject.net.host.HostService;
+import org.onosproject.net.intf.InterfaceService;
 import org.onosproject.net.packet.DefaultOutboundPacket;
 import org.onosproject.net.packet.OutboundPacket;
 import org.onosproject.net.packet.PacketContext;
@@ -93,15 +85,21 @@
 import org.onosproject.net.topology.Topology;
 import org.onosproject.net.topology.TopologyService;
 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;
 import java.util.Dictionary;
 import java.util.Objects;
 import java.util.Optional;
+import java.util.Set;
 import java.util.concurrent.ExecutorService;
 import java.util.stream.Stream;
-import java.util.Set;
 
 import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor;
 import static org.onlab.util.Tools.groupedThreads;
@@ -111,36 +109,35 @@
  * Provider which uses an OpenFlow controller to detect network end-station
  * hosts.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = HostProvider.class)
 public class HostLocationProvider extends AbstractProvider implements HostProvider {
     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 HostProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketService packetService;
 
-    @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 DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry registry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected InterfaceService interfaceService;
 
     private final InternalHostProvider processor = new InternalHostProvider();
@@ -149,34 +146,34 @@
 
     private ApplicationId appId;
 
-    @Property(name = "hostRemovalEnabled", boolValue = true,
-            label = "Enable host removal on port/device down events")
+    //@Property(name = "hostRemovalEnabled", boolValue = true,
+    //        label = "Enable host removal on port/device down events")
     private boolean hostRemovalEnabled = true;
 
-    @Property(name = "requestArp", boolValue = true,
-            label = "Request ARP packets for neighbor discovery by the " +
-                    "Host Location Provider; default is true")
+    //@Property(name = "requestArp", boolValue = true,
+    //        label = "Request ARP packets for neighbor discovery by the " +
+    //                "Host Location Provider; default is true")
     private boolean requestArp = true;
 
-    @Property(name = "requestIpv6ND", boolValue = false,
-            label = "Requests IPv6 Neighbor Discovery by the " +
-                    "Host Location Provider; default is false")
+    //@Property(name = "requestIpv6ND", boolValue = false,
+    //        label = "Requests IPv6 Neighbor Discovery by the " +
+    //                "Host Location Provider; default is false")
     private boolean requestIpv6ND = false;
 
-    @Property(name = "useDhcp", boolValue = false,
-            label = "Use DHCP to update IP address of the host; default is false")
+    //@Property(name = "useDhcp", boolValue = false,
+    //        label = "Use DHCP to update IP address of the host; default is false")
     private boolean useDhcp = false;
 
-    @Property(name = "useDhcp6", boolValue = false,
-            label = "Use DHCPv6 to update IP address of the host; default is false")
+    //@Property(name = "useDhcp6", boolValue = false,
+    //        label = "Use DHCPv6 to update IP address of the host; default is false")
     private boolean useDhcp6 = false;
 
-    @Property(name = "requestInterceptsEnabled", boolValue = true,
-            label = "Enable requesting packet intercepts")
+    //@Property(name = "requestInterceptsEnabled", boolValue = true,
+    //        label = "Enable requesting packet intercepts")
     private boolean requestInterceptsEnabled = true;
 
-    @Property(name = "multihomingEnabled", boolValue = false,
-            label = "Allow hosts to be multihomed")
+    //@Property(name = "multihomingEnabled", boolValue = false,
+    //        label = "Allow hosts to be multihomed")
     private boolean multihomingEnabled = false;
 
     private HostProviderService providerService;
@@ -185,7 +182,7 @@
     private ExecutorService probeEventHandler;
     private ExecutorService packetHandler;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService netcfgService;
 
     private ConfigFactory<ConnectPoint, HostLearningConfig> hostLearningConfig =
diff --git a/providers/hostprobing/src/main/java/org/onosproject/provider/hostprobing/impl/DefaultHostProbingProvider.java b/providers/hostprobing/src/main/java/org/onosproject/provider/hostprobing/impl/DefaultHostProbingProvider.java
index dfcbf0b..d590570 100644
--- a/providers/hostprobing/src/main/java/org/onosproject/provider/hostprobing/impl/DefaultHostProbingProvider.java
+++ b/providers/hostprobing/src/main/java/org/onosproject/provider/hostprobing/impl/DefaultHostProbingProvider.java
@@ -16,12 +16,6 @@
 
 package org.onosproject.provider.hostprobing.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.ARP;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.IPv6;
@@ -53,6 +47,11 @@
 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.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.nio.ByteBuffer;
@@ -69,21 +68,20 @@
 /**
  * Provider which sends host location probes to discover or verify a host at specific location.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = { HostProvider.class, HostProbingProvider.class })
 public class DefaultHostProbingProvider extends AbstractProvider implements HostProvider, HostProbingProvider {
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private HostProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private HostProbingProviderRegistry hostProbingProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private MastershipService mastershipService;
 
     private HostProviderService providerService;
diff --git a/providers/ietfte/topology/src/main/java/org/onosproject/provider/te/topology/TeTopologyRestconfProvider.java b/providers/ietfte/topology/src/main/java/org/onosproject/provider/te/topology/TeTopologyRestconfProvider.java
index 82cc93c..8bc44da 100644
--- a/providers/ietfte/topology/src/main/java/org/onosproject/provider/te/topology/TeTopologyRestconfProvider.java
+++ b/providers/ietfte/topology/src/main/java/org/onosproject/provider/te/topology/TeTopologyRestconfProvider.java
@@ -34,11 +34,11 @@
 import java.util.concurrent.Executors;
 
 import org.apache.commons.io.IOUtils;
-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.incubator.net.config.basics.ConfigException;
@@ -107,25 +107,25 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceProviderRegistry deviceProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTopologyProviderRegistry topologyProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RestConfSBController restconfClient;
 
-    @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 YmsService ymsService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTopologyService teTopologyService;
 
     private YangCodecHandler codecHandler;
diff --git a/providers/ietfte/tunnel/src/main/java/org/onosproject/provider/te/tunnel/TeTunnelRestconfProvider.java b/providers/ietfte/tunnel/src/main/java/org/onosproject/provider/te/tunnel/TeTunnelRestconfProvider.java
index 33d33f9..3c765aa 100644
--- a/providers/ietfte/tunnel/src/main/java/org/onosproject/provider/te/tunnel/TeTunnelRestconfProvider.java
+++ b/providers/ietfte/tunnel/src/main/java/org/onosproject/provider/te/tunnel/TeTunnelRestconfProvider.java
@@ -18,11 +18,11 @@
 
 import com.fasterxml.jackson.databind.JsonNode;
 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.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.incubator.net.tunnel.Tunnel;
 import org.onosproject.incubator.net.tunnel.TunnelDescription;
 import org.onosproject.incubator.net.tunnel.TunnelId;
@@ -100,22 +100,22 @@
     //private final RestconfNotificationEventListener listener =
     //        new InternalTunnelNotificationListener();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RestConfSBController controller;
 
-    @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 TeTunnelProviderService providerService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TeTopologyService topologyService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TunnelProviderRegistry tunnelProviderRegistry;
 
     private YangCodecHandler codecHandler;
diff --git a/providers/isis/cfg/src/main/java/org/onosproject/provider/isis/cfg/impl/IsisAppConfig.java b/providers/isis/cfg/src/main/java/org/onosproject/provider/isis/cfg/impl/IsisAppConfig.java
index ca5b5bd..a880bd0 100644
--- a/providers/isis/cfg/src/main/java/org/onosproject/provider/isis/cfg/impl/IsisAppConfig.java
+++ b/providers/isis/cfg/src/main/java/org/onosproject/provider/isis/cfg/impl/IsisAppConfig.java
@@ -17,8 +17,8 @@
 package org.onosproject.provider.isis.cfg.impl;
 
 import com.fasterxml.jackson.databind.JsonNode;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.osgi.DefaultServiceDirectory;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.isis.controller.IsisController;
@@ -31,7 +31,7 @@
     public static final String METHOD = "method";
     public static final String PROCESSES = "processes";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     IsisController isisController;
 
     /**
diff --git a/providers/isis/cfg/src/main/java/org/onosproject/provider/isis/cfg/impl/IsisCfgProvider.java b/providers/isis/cfg/src/main/java/org/onosproject/provider/isis/cfg/impl/IsisCfgProvider.java
index 45000e9..f25d00d 100644
--- a/providers/isis/cfg/src/main/java/org/onosproject/provider/isis/cfg/impl/IsisCfgProvider.java
+++ b/providers/isis/cfg/src/main/java/org/onosproject/provider/isis/cfg/impl/IsisCfgProvider.java
@@ -17,12 +17,6 @@
 package org.onosproject.provider.isis.cfg.impl;
 
 import com.fasterxml.jackson.databind.JsonNode;
-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.isis.controller.IsisController;
@@ -34,6 +28,11 @@
 import org.onosproject.net.config.basics.SubjectFactories;
 import org.onosproject.net.provider.AbstractProvider;
 import org.onosproject.net.provider.ProviderId;
+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;
@@ -41,8 +40,7 @@
 /**
  * ISIS config provider to validate and populate the configuration.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = IsisCfgProvider.class)
 public class IsisCfgProvider extends AbstractProvider {
 
     private static final String PROVIDER_ID = "org.onosproject.provider.isis.cfg";
@@ -55,13 +53,13 @@
                 }
             };
     private final NetworkConfigListener configListener = new InternalConfigListener();
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IsisController isisController;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry configRegistry;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService configService;
     private ApplicationId appId;
 
diff --git a/providers/isis/cli/src/main/java/org/onosproject/isis/cli/ApplicationIsisCommand.java b/providers/isis/cli/src/main/java/org/onosproject/isis/cli/ApplicationIsisCommand.java
index f8566ac..b531b5f 100644
--- a/providers/isis/cli/src/main/java/org/onosproject/isis/cli/ApplicationIsisCommand.java
+++ b/providers/isis/cli/src/main/java/org/onosproject/isis/cli/ApplicationIsisCommand.java
@@ -15,8 +15,8 @@
  */
 package org.onosproject.isis.cli;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Deactivate;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Deactivate;
 import org.apache.karaf.shell.commands.Argument;
 import org.apache.karaf.shell.commands.Command;
 import org.onlab.packet.MacAddress;
diff --git a/providers/isis/topology/src/main/java/org/onosproject/provider/isis/topology/impl/IsisTopologyProvider.java b/providers/isis/topology/src/main/java/org/onosproject/provider/isis/topology/impl/IsisTopologyProvider.java
index 05f87bb..a8d3fc7 100644
--- a/providers/isis/topology/src/main/java/org/onosproject/provider/isis/topology/impl/IsisTopologyProvider.java
+++ b/providers/isis/topology/src/main/java/org/onosproject/provider/isis/topology/impl/IsisTopologyProvider.java
@@ -16,11 +16,11 @@
 
 package org.onosproject.provider.isis.topology.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.ChassisId;
 import org.onlab.util.Bandwidth;
 import org.onosproject.isis.controller.IsisController;
@@ -81,15 +81,15 @@
     // Default values for tunable parameters
     private static final String UNKNOWN = "unknown";
     final InternalTopologyProvider listener = new InternalTopologyProvider();
-    @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)
     protected NetworkConfigService networkConfigService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IsisController controller;
     //This Interface that defines how this provider can interact with the core.
     private LinkProviderService linkProviderService;
diff --git a/providers/link/src/main/java/org/onosproject/provider/linkdiscovery/impl/LinkDiscoveryProvider.java b/providers/link/src/main/java/org/onosproject/provider/linkdiscovery/impl/LinkDiscoveryProvider.java
index ebf27e1..1415290 100644
--- a/providers/link/src/main/java/org/onosproject/provider/linkdiscovery/impl/LinkDiscoveryProvider.java
+++ b/providers/link/src/main/java/org/onosproject/provider/linkdiscovery/impl/LinkDiscoveryProvider.java
@@ -16,13 +16,6 @@
 
 package org.onosproject.provider.linkdiscovery.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.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -45,6 +38,12 @@
 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;
@@ -74,29 +73,29 @@
     private static final String LINK_PROVIDER_PACKAGE = "org.onosproject.provider.linkdiscovery";
     private final Logger log = getLogger(getClass());
     private static final int DEFAULT_POLL_DELAY_SECONDS = 20;
-    @Property(name = "linkPollDelaySeconds", intValue = DEFAULT_POLL_DELAY_SECONDS,
-            label = "Initial delay (in seconds) for polling link discovery")
+    //@Property(name = "linkPollDelaySeconds", intValue = DEFAULT_POLL_DELAY_SECONDS,
+    //        label = "Initial delay (in seconds) for polling link discovery")
     protected static int linkPollDelaySeconds = DEFAULT_POLL_DELAY_SECONDS;
     private static final int DEFAULT_POLL_FREQUENCY_SECONDS = 10;
-    @Property(name = "linkPollFrequencySeconds", intValue = DEFAULT_POLL_FREQUENCY_SECONDS,
-            label = "Frequency (in seconds) for polling link discovery")
+    //@Property(name = "linkPollFrequencySeconds", intValue = DEFAULT_POLL_FREQUENCY_SECONDS,
+    //        label = "Frequency (in seconds) for polling link discovery")
     protected static int linkPollFrequencySeconds = DEFAULT_POLL_FREQUENCY_SECONDS;
 
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkProviderRegistry providerRegistry;
-    @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 DeviceService deviceService;
     protected ScheduledExecutorService executor =
             newScheduledThreadPool(2, groupedThreads("onos/netconf-link",
                                                      "discovery-%d"));
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
     protected LinkProviderService providerService;
diff --git a/providers/lisp/device/src/main/java/org/onosproject/provider/lisp/device/impl/LispDeviceProvider.java b/providers/lisp/device/src/main/java/org/onosproject/provider/lisp/device/impl/LispDeviceProvider.java
index 755df17..8317ae8 100644
--- a/providers/lisp/device/src/main/java/org/onosproject/provider/lisp/device/impl/LispDeviceProvider.java
+++ b/providers/lisp/device/src/main/java/org/onosproject/provider/lisp/device/impl/LispDeviceProvider.java
@@ -16,11 +16,11 @@
 package org.onosproject.provider.lisp.device.impl;
 
 import com.google.common.base.Preconditions;
-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.Activate;
-import org.apache.felix.scr.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.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Deactivate;
 
 import org.onlab.packet.ChassisId;
 import org.onosproject.core.ApplicationId;
@@ -57,16 +57,16 @@
 
     private static final Logger log = LoggerFactory.getLogger(LispDeviceProvider.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceProviderRegistry providerRegistry;
 
-    @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 LispController controller;
 
     private static final String APP_NAME = "org.onosproject.lisp";
diff --git a/providers/lisp/mapping/src/main/java/org/onosproject/provider/lisp/mapping/impl/LispMappingProvider.java b/providers/lisp/mapping/src/main/java/org/onosproject/provider/lisp/mapping/impl/LispMappingProvider.java
index 0a628d5..d2ced96 100644
--- a/providers/lisp/mapping/src/main/java/org/onosproject/provider/lisp/mapping/impl/LispMappingProvider.java
+++ b/providers/lisp/mapping/src/main/java/org/onosproject/provider/lisp/mapping/impl/LispMappingProvider.java
@@ -16,11 +16,11 @@
 package org.onosproject.provider.lisp.mapping.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.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.lisp.ctl.LispController;
 import org.onosproject.lisp.ctl.LispMessageListener;
 import org.onosproject.lisp.ctl.LispRouterId;
@@ -61,13 +61,13 @@
 
     private static final Logger log = LoggerFactory.getLogger(LispMappingProvider.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LispController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MappingProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
     protected MappingProviderService providerService;
diff --git a/providers/lisp/message/src/main/java/org/onosproject/provider/lisp/message/impl/LispMessageProvider.java b/providers/lisp/message/src/main/java/org/onosproject/provider/lisp/message/impl/LispMessageProvider.java
index 02ea37f..27533ec 100644
--- a/providers/lisp/message/src/main/java/org/onosproject/provider/lisp/message/impl/LispMessageProvider.java
+++ b/providers/lisp/message/src/main/java/org/onosproject/provider/lisp/message/impl/LispMessageProvider.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.provider.lisp.message.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.metrics.MetricsService;
 import org.onosproject.lisp.ctl.LispController;
 import org.onosproject.lisp.ctl.LispMessageListener;
@@ -39,10 +39,10 @@
 
     private static final Logger log = LoggerFactory.getLogger(LispMessageProvider.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LispController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MetricsService metricsService;
 
     private static final String SCHEME_NAME = "lisp";
diff --git a/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java b/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java
index 87ca7d7..e425678 100644
--- a/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java
+++ b/providers/lldp/src/main/java/org/onosproject/provider/lldp/impl/LldpLinkProvider.java
@@ -15,25 +15,9 @@
  */
 package org.onosproject.provider.lldp.impl;
 
-import java.util.Dictionary;
-import java.util.EnumSet;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
-import java.util.Properties;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.ScheduledExecutorService;
-
-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.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Maps;
 import org.onlab.packet.Ethernet;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.cluster.ClusterMetadataService;
@@ -72,11 +56,25 @@
 import org.onosproject.provider.lldpcommon.LinkDiscovery;
 import org.onosproject.provider.lldpcommon.LinkDiscoveryContext;
 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 com.google.common.collect.ImmutableMap;
-import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.Maps;
+import java.util.Dictionary;
+import java.util.EnumSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Properties;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.ScheduledExecutorService;
 
 import static com.google.common.base.Strings.isNullOrEmpty;
 import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor;
@@ -111,34 +109,34 @@
 
     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 LinkProviderRegistry providerRegistry;
 
-    @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 PacketService packetService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService masterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry cfgRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterMetadataService clusterMetadataService;
 
     private LinkProviderService providerService;
@@ -153,25 +151,25 @@
     private static final long LINK_PRUNER_DELAY = 3;
 
     private static final String PROP_ENABLED = "enabled";
-    @Property(name = PROP_ENABLED, boolValue = true,
-            label = "If false, link discovery is disabled")
+    //@Property(name = PROP_ENABLED, boolValue = true,
+    //        label = "If false, link discovery is disabled")
     private boolean enabled = false;
 
     private static final String PROP_USE_BDDP = "useBDDP";
-    @Property(name = PROP_USE_BDDP, boolValue = true,
-            label = "Use BDDP for link discovery")
+    //@Property(name = PROP_USE_BDDP, boolValue = true,
+    //        label = "Use BDDP for link discovery")
     private boolean useBddp = true;
 
     private static final String PROP_PROBE_RATE = "probeRate";
     private static final int DEFAULT_PROBE_RATE = 3000;
-    @Property(name = PROP_PROBE_RATE, intValue = DEFAULT_PROBE_RATE,
-            label = "LLDP and BDDP probe rate specified in millis")
+    //@Property(name = PROP_PROBE_RATE, intValue = DEFAULT_PROBE_RATE,
+    //        label = "LLDP and BDDP probe rate specified in millis")
     private int probeRate = DEFAULT_PROBE_RATE;
 
     private static final String PROP_STALE_LINK_AGE = "staleLinkAge";
     private static final int DEFAULT_STALE_LINK_AGE = 10000;
-    @Property(name = PROP_STALE_LINK_AGE, intValue = DEFAULT_STALE_LINK_AGE,
-            label = "Number of millis beyond which links will be considered stale")
+    //@Property(name = PROP_STALE_LINK_AGE, intValue = DEFAULT_STALE_LINK_AGE,
+    //        label = "Number of millis beyond which links will be considered stale")
     private int staleLinkAge = DEFAULT_STALE_LINK_AGE;
 
     private final LinkDiscoveryContext context = new InternalDiscoveryContext();
diff --git a/providers/netcfghost/src/main/java/org/onosproject/provider/netcfghost/NetworkConfigHostProvider.java b/providers/netcfghost/src/main/java/org/onosproject/provider/netcfghost/NetworkConfigHostProvider.java
index 38db63a..b820573 100644
--- a/providers/netcfghost/src/main/java/org/onosproject/provider/netcfghost/NetworkConfigHostProvider.java
+++ b/providers/netcfghost/src/main/java/org/onosproject/provider/netcfghost/NetworkConfigHostProvider.java
@@ -16,11 +16,11 @@
 
 package org.onosproject.provider.netcfghost;
 
-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.IpAddress;
 import org.onlab.packet.MacAddress;
@@ -53,13 +53,13 @@
  */
 @Component(immediate = true)
 public class NetworkConfigHostProvider extends AbstractProvider implements HostProvider {
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry networkConfigRegistry;
 
     private ApplicationId appId;
diff --git a/providers/netcfglinks/src/main/java/org/onosproject/provider/netcfglinks/NetworkConfigLinksProvider.java b/providers/netcfglinks/src/main/java/org/onosproject/provider/netcfglinks/NetworkConfigLinksProvider.java
index a15857f..2d44c5b 100644
--- a/providers/netcfglinks/src/main/java/org/onosproject/provider/netcfglinks/NetworkConfigLinksProvider.java
+++ b/providers/netcfglinks/src/main/java/org/onosproject/provider/netcfglinks/NetworkConfigLinksProvider.java
@@ -15,18 +15,6 @@
  */
 package org.onosproject.provider.netcfglinks;
 
-import java.util.HashSet;
-import java.util.Map;
-import java.util.Optional;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-
-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.onlab.packet.Ethernet;
 import org.onlab.packet.ONOSLLDP;
 import org.onosproject.cluster.ClusterMetadataService;
@@ -51,9 +39,9 @@
 import org.onosproject.net.flow.DefaultTrafficSelector;
 import org.onosproject.net.flow.TrafficSelector;
 import org.onosproject.net.link.DefaultLinkDescription;
-import org.onosproject.net.link.ProbedLinkProvider;
 import org.onosproject.net.link.LinkProviderRegistry;
 import org.onosproject.net.link.LinkProviderService;
+import org.onosproject.net.link.ProbedLinkProvider;
 import org.onosproject.net.packet.InboundPacket;
 import org.onosproject.net.packet.PacketContext;
 import org.onosproject.net.packet.PacketPriority;
@@ -61,11 +49,22 @@
 import org.onosproject.net.packet.PacketService;
 import org.onosproject.net.provider.AbstractProvider;
 import org.onosproject.net.provider.ProviderId;
-import org.onosproject.provider.lldpcommon.LinkDiscoveryContext;
 import org.onosproject.provider.lldpcommon.LinkDiscovery;
+import org.onosproject.provider.lldpcommon.LinkDiscoveryContext;
+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.HashSet;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
 import static org.onlab.packet.Ethernet.TYPE_BSN;
 import static org.onlab.packet.Ethernet.TYPE_LLDP;
 import static org.onosproject.net.PortNumber.portNumber;
@@ -80,31 +79,31 @@
         extends AbstractProvider
         implements ProbedLinkProvider {
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkProviderRegistry providerRegistry;
 
-    @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 MastershipService masterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry netCfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterMetadataService metadataService;
 
     private static final String PROP_PROBE_RATE = "probeRate";
     private static final int DEFAULT_PROBE_RATE = 3000;
-    @Property(name = PROP_PROBE_RATE, intValue = DEFAULT_PROBE_RATE,
-            label = "LLDP and BDDP probe rate specified in millis")
+    //@Property(name = PROP_PROBE_RATE, intValue = DEFAULT_PROBE_RATE,
+    //        label = "LLDP and BDDP probe rate specified in millis")
     private int probeRate = DEFAULT_PROBE_RATE;
 
     // Device link discovery helpers.
diff --git a/providers/netconf/alarm/src/main/java/org/onosproject/provider/netconf/alarm/NetconfAlarmProvider.java b/providers/netconf/alarm/src/main/java/org/onosproject/provider/netconf/alarm/NetconfAlarmProvider.java
index ec4f8ae..da0fa1c 100644
--- a/providers/netconf/alarm/src/main/java/org/onosproject/provider/netconf/alarm/NetconfAlarmProvider.java
+++ b/providers/netconf/alarm/src/main/java/org/onosproject/provider/netconf/alarm/NetconfAlarmProvider.java
@@ -18,11 +18,11 @@
 
 import com.google.common.collect.ImmutableList;
 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.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.incubator.net.faultmanagement.alarm.Alarm;
 import org.onosproject.incubator.net.faultmanagement.alarm.AlarmProvider;
 import org.onosproject.incubator.net.faultmanagement.alarm.AlarmProviderService;
@@ -68,10 +68,10 @@
     private final Logger log = getLogger(getClass());
     private final AlarmTranslator translator = new NetconfAlarmTranslator();
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected AlarmProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetconfController controller;
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
diff --git a/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java b/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
index e54e90f..a0626df 100644
--- a/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
+++ b/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
@@ -19,13 +19,6 @@
 import com.google.common.base.Objects;
 import com.google.common.base.Preconditions;
 import com.google.common.util.concurrent.Striped;
-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.ChassisId;
 import org.onlab.util.Tools;
 import org.onosproject.cfg.ComponentConfigService;
@@ -69,6 +62,12 @@
 import org.onosproject.netconf.NetconfException;
 import org.onosproject.netconf.config.NetconfDeviceConfig;
 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;
@@ -106,28 +105,28 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetconfController controller;
 
-    @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 DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceKeyAdminService deviceKeyAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService componentConfigService;
 
 
@@ -142,15 +141,15 @@
     private static final int CORE_POOL_SIZE = 10;
 
     private static final int DEFAULT_POLL_FREQUENCY_SECONDS = 30;
-    @Property(name = "pollFrequency", intValue = DEFAULT_POLL_FREQUENCY_SECONDS,
-            label = "Configure poll frequency for port status and statistics; " +
-                    "default is 30 sec")
+    //@Property(name = "pollFrequency", intValue = DEFAULT_POLL_FREQUENCY_SECONDS,
+    //        label = "Configure poll frequency for port status and statistics; " +
+    //                "default is 30 sec")
     private int pollFrequency = DEFAULT_POLL_FREQUENCY_SECONDS;
 
     private static final int DEFAULT_MAX_RETRIES = 5;
-    @Property(name = "maxRetries", intValue = DEFAULT_MAX_RETRIES,
-            label = "Configure maximum allowed number of retries for obtaining list of ports; " +
-                    "default is 5 times")
+    //@Property(name = "maxRetries", intValue = DEFAULT_MAX_RETRIES,
+    //        label = "Configure maximum allowed number of retries for obtaining list of ports; " +
+    //                "default is 5 times")
     private int maxRetries = DEFAULT_MAX_RETRIES;
 
     protected ExecutorService executor =
diff --git a/providers/null/src/main/java/org/onosproject/provider/nil/NullProviders.java b/providers/null/src/main/java/org/onosproject/provider/nil/NullProviders.java
index 7c45df3..2258f44 100644
--- a/providers/null/src/main/java/org/onosproject/provider/nil/NullProviders.java
+++ b/providers/null/src/main/java/org/onosproject/provider/nil/NullProviders.java
@@ -15,14 +15,6 @@
  */
 package org.onosproject.provider.nil;
 
-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.osgi.DefaultServiceDirectory;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.cluster.ClusterService;
@@ -54,6 +46,12 @@
 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;
@@ -72,8 +70,7 @@
  * Provider of a fake network environment, i.e. devices, links, hosts, etc.
  * To be used for benchmarking only.
  */
-@Component(immediate = true)
-@Service(value = NullProviders.class)
+@Component(immediate = true, service = NullProviders.class)
 public class NullProviders {
 
     private static final Logger log = getLogger(NullProviders.class);
@@ -86,41 +83,41 @@
                     "hostCount={}, packetRate={}, mutationRate={}";
 
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipAdminService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceAdminService 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 DeviceProviderRegistry deviceProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostProviderRegistry hostProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkProviderRegistry linkProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleProviderRegistry flowRuleProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected GroupProviderRegistry groupProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketProviderRegistry packetProviderRegistry;
 
     private final NullDeviceProvider deviceProvider = new NullDeviceProvider();
@@ -140,38 +137,38 @@
 
     private TopologySimulator simulator;
 
-    @Property(name = "enabled", boolValue = false,
-            label = "Enables or disables the provider")
+    //@Property(name = "enabled", boolValue = false,
+    //        label = "Enables or disables the provider")
     private boolean enabled = false;
 
     private static final String DEFAULT_TOPO_SHAPE = "configured";
-    @Property(name = "topoShape", value = DEFAULT_TOPO_SHAPE,
-            label = "Topology shape: configured, linear, reroute, tree, spineleaf, mesh, grid")
+    //@Property(name = "topoShape", value = DEFAULT_TOPO_SHAPE,
+    //        label = "Topology shape: configured, linear, reroute, tree, spineleaf, mesh, grid")
     private String topoShape = DEFAULT_TOPO_SHAPE;
 
     private static final int DEFAULT_DEVICE_COUNT = 10;
-    @Property(name = "deviceCount", intValue = DEFAULT_DEVICE_COUNT,
-            label = "Number of devices to generate")
+    //@Property(name = "deviceCount", intValue = DEFAULT_DEVICE_COUNT,
+    //        label = "Number of devices to generate")
     private int deviceCount = DEFAULT_DEVICE_COUNT;
 
     private static final int DEFAULT_HOST_COUNT = 5;
-    @Property(name = "hostCount", intValue = DEFAULT_HOST_COUNT,
-            label = "Number of host to generate per device")
+    //@Property(name = "hostCount", intValue = DEFAULT_HOST_COUNT,
+    //        label = "Number of host to generate per device")
     private int hostCount = DEFAULT_HOST_COUNT;
 
     private static final int DEFAULT_PACKET_RATE = 0;
-    @Property(name = "packetRate", intValue = DEFAULT_PACKET_RATE,
-            label = "Packet-in/s rate; 0 for no packets")
+    //@Property(name = "packetRate", intValue = DEFAULT_PACKET_RATE,
+    //        label = "Packet-in/s rate; 0 for no packets")
     private int packetRate = DEFAULT_PACKET_RATE;
 
     private static final double DEFAULT_MUTATION_RATE = 0;
-    @Property(name = "mutationRate", doubleValue = DEFAULT_MUTATION_RATE,
-            label = "Link event/s topology mutation rate; 0 for no mutations")
+    //@Property(name = "mutationRate", doubleValue = DEFAULT_MUTATION_RATE,
+    //        label = "Link event/s topology mutation rate; 0 for no mutations")
     private double mutationRate = DEFAULT_MUTATION_RATE;
 
     private static final String DEFAULT_MASTERSHIP = "random";
-    @Property(name = "mastership", value = DEFAULT_MASTERSHIP,
-            label = "Mastership given as 'random' or 'node1=dpid,dpid/node2=dpid,...'")
+    //@Property(name = "mastership", value = DEFAULT_MASTERSHIP,
+    //        label = "Mastership given as 'random' or 'node1=dpid,dpid/node2=dpid,...'")
     private String mastership = DEFAULT_MASTERSHIP;
 
 
diff --git a/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/OpenFlowDeviceProvider.java b/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/OpenFlowDeviceProvider.java
index 8cd3870..130ad53 100644
--- a/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/OpenFlowDeviceProvider.java
+++ b/providers/openflow/device/src/main/java/org/onosproject/provider/of/device/impl/OpenFlowDeviceProvider.java
@@ -20,13 +20,6 @@
 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.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.ChassisId;
 import org.onlab.util.Frequency;
 import org.onlab.util.Spectrum;
@@ -73,6 +66,12 @@
 import org.onosproject.openflow.controller.PortDescPropertyType;
 import org.onosproject.openflow.controller.RoleState;
 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.projectfloodlight.openflow.protocol.OFCalientPortDescProp;
 import org.projectfloodlight.openflow.protocol.OFCalientPortDescPropOptical;
 import org.projectfloodlight.openflow.protocol.OFCalientPortDescStatsEntry;
@@ -430,19 +429,19 @@
     private static final long C = 299792458; // speed of light in m/s
     public static final String SCHEME = "of";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenFlowController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
     private DeviceProviderService providerService;
@@ -451,14 +450,14 @@
 
     private static final String POLL_PROP_NAME = "portStatsPollFrequency";
     private static final int POLL_INTERVAL = 5;
-    @Property(name = POLL_PROP_NAME, intValue = POLL_INTERVAL,
-    label = "Frequency (in seconds) for polling switch Port statistics")
+    //@Property(name = POLL_PROP_NAME, intValue = POLL_INTERVAL,
+    //label = "Frequency (in seconds) for polling switch Port statistics")
     private int portStatsPollFrequency = POLL_INTERVAL;
 
     private static final String PROP_FREQ = "propertyFrequency";
     private static final boolean DEFAULT_PROP_FREQ = true;
-    @Property(name = PROP_FREQ, boolValue = DEFAULT_PROP_FREQ,
-    label = "It indicates frequency must be used instead of wavelength for port tuning.")
+    //@Property(name = PROP_FREQ, boolValue = DEFAULT_PROP_FREQ,
+    //label = "It indicates frequency must be used instead of wavelength for port tuning.")
     private static boolean propFreq = DEFAULT_PROP_FREQ;
 
     private final Timer timer = new Timer("onos-openflow-portstats-collector");
diff --git a/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/OpenFlowRuleProvider.java b/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/OpenFlowRuleProvider.java
index a72c082..33ffdb6 100644
--- a/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/OpenFlowRuleProvider.java
+++ b/providers/openflow/flow/src/main/java/org/onosproject/provider/of/flow/impl/OpenFlowRuleProvider.java
@@ -26,13 +26,12 @@
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
-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.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.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.net.DeviceId;
@@ -115,16 +114,16 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenFlowController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
     private static final int DEFAULT_POLL_FREQUENCY = 5;
@@ -132,12 +131,12 @@
     private static final int SKIP_BYTES = 4;
     private static final boolean DEFAULT_ADAPTIVE_FLOW_SAMPLING = false;
 
-    @Property(name = "flowPollFrequency", intValue = DEFAULT_POLL_FREQUENCY,
-            label = "Frequency (in seconds) for polling flow statistics")
+    //@Property(name = "flowPollFrequency", intValue = DEFAULT_POLL_FREQUENCY,
+    //        label = "Frequency (in seconds) for polling flow statistics")
     private int flowPollFrequency = DEFAULT_POLL_FREQUENCY;
 
-    @Property(name = "adaptiveFlowSampling", boolValue = DEFAULT_ADAPTIVE_FLOW_SAMPLING,
-            label = "Adaptive Flow Sampling is on or off")
+    //@Property(name = "adaptiveFlowSampling", boolValue = DEFAULT_ADAPTIVE_FLOW_SAMPLING,
+    //        label = "Adaptive Flow Sampling is on or off")
     private boolean adaptiveFlowSampling = DEFAULT_ADAPTIVE_FLOW_SAMPLING;
 
     private FlowRuleProviderService providerService;
diff --git a/providers/openflow/group/src/main/java/org/onosproject/provider/of/group/impl/OpenFlowGroupProvider.java b/providers/openflow/group/src/main/java/org/onosproject/provider/of/group/impl/OpenFlowGroupProvider.java
index da8e694..a43c295 100644
--- a/providers/openflow/group/src/main/java/org/onosproject/provider/of/group/impl/OpenFlowGroupProvider.java
+++ b/providers/openflow/group/src/main/java/org/onosproject/provider/of/group/impl/OpenFlowGroupProvider.java
@@ -16,26 +16,7 @@
 
 package org.onosproject.provider.of.group.impl;
 
-import static org.onlab.util.Tools.getIntegerProperty;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Dictionary;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
-import java.util.Properties;
-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 com.google.common.collect.Maps;
 import org.onlab.util.ItemNotFoundException;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.GroupId;
@@ -66,6 +47,12 @@
 import org.onosproject.openflow.controller.OpenFlowSwitchListener;
 import org.onosproject.openflow.controller.RoleState;
 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.projectfloodlight.openflow.protocol.OFBucketCounter;
 import org.projectfloodlight.openflow.protocol.OFCapabilities;
 import org.projectfloodlight.openflow.protocol.OFErrorMsg;
@@ -86,7 +73,18 @@
 import org.projectfloodlight.openflow.protocol.errormsg.OFGroupModFailedErrorMsg;
 import org.slf4j.Logger;
 
-import com.google.common.collect.Maps;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Dictionary;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Properties;
+import java.util.concurrent.atomic.AtomicLong;
+
+import static org.onlab.util.Tools.getIntegerProperty;
+import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Provider which uses an OpenFlow controller to handle Group.
@@ -96,22 +94,22 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenFlowController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected GroupProviderRegistry providerRegistry;
 
-    @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 GroupService groupService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
     private GroupProviderService providerService;
@@ -120,8 +118,8 @@
     private static final String COMPONENT = "org.onosproject.provider.of.group.impl.OpenFlowGroupProvider";
     private static final String GROUP_POLL_INTERVAL_CONST = "groupPollInterval";
 
-    @Property(name = "groupPollInterval", intValue = DEFAULT_POLL_INTERVAL,
-            label = "Frequency (in seconds) for polling group statistics")
+    //@Property(name = "groupPollInterval", intValue = DEFAULT_POLL_INTERVAL,
+    //        label = "Frequency (in seconds) for polling group statistics")
     private int groupPollInterval = DEFAULT_POLL_INTERVAL;
 
     private final InternalGroupProvider listener = new InternalGroupProvider();
diff --git a/providers/openflow/message/src/main/java/org/onosproject/provider/of/message/impl/OpenFlowControlMessageProvider.java b/providers/openflow/message/src/main/java/org/onosproject/provider/of/message/impl/OpenFlowControlMessageProvider.java
index 9ad660b..fc60f74 100644
--- a/providers/openflow/message/src/main/java/org/onosproject/provider/of/message/impl/OpenFlowControlMessageProvider.java
+++ b/providers/openflow/message/src/main/java/org/onosproject/provider/of/message/impl/OpenFlowControlMessageProvider.java
@@ -16,11 +16,11 @@
 package org.onosproject.provider.of.message.impl;
 
 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.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.metrics.MetricsService;
 import org.onlab.util.SharedScheduledExecutorService;
 import org.onlab.util.SharedScheduledExecutors;
@@ -59,13 +59,13 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ControlMessageProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenFlowController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MetricsService metricsService;
 
     private ControlMessageProviderService providerService;
diff --git a/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
index 87abcd0..0767230 100644
--- a/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
+++ b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
@@ -23,11 +23,11 @@
 import com.google.common.cache.RemovalNotification;
 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.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.ItemNotFoundException;
 import org.onosproject.core.CoreService;
 import org.onosproject.net.driver.Driver;
@@ -92,16 +92,16 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenFlowController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MeterProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
     private MeterProviderService providerService;
diff --git a/providers/openflow/packet/src/main/java/org/onosproject/provider/of/packet/impl/OpenFlowPacketProvider.java b/providers/openflow/packet/src/main/java/org/onosproject/provider/of/packet/impl/OpenFlowPacketProvider.java
index c5e2a87..a363339 100644
--- a/providers/openflow/packet/src/main/java/org/onosproject/provider/of/packet/impl/OpenFlowPacketProvider.java
+++ b/providers/openflow/packet/src/main/java/org/onosproject/provider/of/packet/impl/OpenFlowPacketProvider.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.provider.of.packet.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.PortNumber;
@@ -62,10 +62,10 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OpenFlowController controller;
 
     private PacketProviderService providerService;
diff --git a/providers/ospf/cfg/src/main/java/org/onosproject/provider/ospf/cfg/impl/OspfAppConfig.java b/providers/ospf/cfg/src/main/java/org/onosproject/provider/ospf/cfg/impl/OspfAppConfig.java
index 23bb87a..ca1e461 100644
--- a/providers/ospf/cfg/src/main/java/org/onosproject/provider/ospf/cfg/impl/OspfAppConfig.java
+++ b/providers/ospf/cfg/src/main/java/org/onosproject/provider/ospf/cfg/impl/OspfAppConfig.java
@@ -17,8 +17,8 @@
 package org.onosproject.provider.ospf.cfg.impl;
 
 import com.fasterxml.jackson.databind.JsonNode;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.osgi.DefaultServiceDirectory;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.net.config.Config;
@@ -31,7 +31,7 @@
     public static final String METHOD = "method";
     public static final String ATTRIBUTE = "attribute";
     public static final String PROCESSES = "processes";
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     private OspfController ospfController;
 
     /**
diff --git a/providers/ospf/cfg/src/main/java/org/onosproject/provider/ospf/cfg/impl/OspfCfgProvider.java b/providers/ospf/cfg/src/main/java/org/onosproject/provider/ospf/cfg/impl/OspfCfgProvider.java
index e228d96..4e62d28 100644
--- a/providers/ospf/cfg/src/main/java/org/onosproject/provider/ospf/cfg/impl/OspfCfgProvider.java
+++ b/providers/ospf/cfg/src/main/java/org/onosproject/provider/ospf/cfg/impl/OspfCfgProvider.java
@@ -16,12 +16,11 @@
 package org.onosproject.provider.ospf.cfg.impl;
 
 import com.fasterxml.jackson.databind.JsonNode;
-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.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.config.ConfigFactory;
@@ -40,8 +39,7 @@
 /**
  * Provider which advertises device descriptions to the core.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = OspfCfgProvider.class)
 public class OspfCfgProvider extends AbstractProvider {
 
     static final String PROVIDER_ID = "org.onosproject.provider.ospf.cfg";
@@ -54,15 +52,15 @@
                 }
             };
     private final NetworkConfigListener configListener = new InternalConfigListener();
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OspfController ospfController;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry configRegistry;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService configService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OspfController controller;
     private ApplicationId appId;
 
diff --git a/providers/ospf/cli/src/main/java/org/onosproject/ospf/cli/ApplicationOspfCommand.java b/providers/ospf/cli/src/main/java/org/onosproject/ospf/cli/ApplicationOspfCommand.java
index 5ea0826..06b1042 100644
--- a/providers/ospf/cli/src/main/java/org/onosproject/ospf/cli/ApplicationOspfCommand.java
+++ b/providers/ospf/cli/src/main/java/org/onosproject/ospf/cli/ApplicationOspfCommand.java
@@ -15,11 +15,11 @@
 */
 package org.onosproject.ospf.cli;
 
-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.karaf.shell.commands.Argument;
 import org.apache.karaf.shell.commands.Command;
 import org.onosproject.cli.AbstractShellCommand;
@@ -57,7 +57,7 @@
     protected static final String DROTHER = "DROther";
     static final String DATABASE = "database";
     static final String NEIGHBORLIST = "neighbors";
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OspfController ospfController;
     @Argument(index = 0, name = "name",
             description = "database|neighborlist",
diff --git a/providers/ospf/topology/src/main/java/org/onosproject/provider/ospf/topology/impl/OspfTopologyProvider.java b/providers/ospf/topology/src/main/java/org/onosproject/provider/ospf/topology/impl/OspfTopologyProvider.java
index f77cb3e..702d61a 100644
--- a/providers/ospf/topology/src/main/java/org/onosproject/provider/ospf/topology/impl/OspfTopologyProvider.java
+++ b/providers/ospf/topology/src/main/java/org/onosproject/provider/ospf/topology/impl/OspfTopologyProvider.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.provider.ospf.topology.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.ChassisId;
 import org.onlab.packet.Ip4Address;
 import org.onosproject.net.AnnotationKeys;
@@ -69,13 +69,13 @@
     // Default values for tunable parameters
     private static final String UNKNOWN = "unknown";
     final InternalTopologyProvider listener = new InternalTopologyProvider();
-    @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)
     protected LinkService linkService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OspfController controller;
     //This Interface that defines how this provider can interact with the core.
     private LinkProviderService linkProviderService;
diff --git a/providers/ovsdb/device/src/main/java/org/onosproject/ovsdb/providers/device/OvsdbDeviceProvider.java b/providers/ovsdb/device/src/main/java/org/onosproject/ovsdb/providers/device/OvsdbDeviceProvider.java
index a520035..5fbf304 100644
--- a/providers/ovsdb/device/src/main/java/org/onosproject/ovsdb/providers/device/OvsdbDeviceProvider.java
+++ b/providers/ovsdb/device/src/main/java/org/onosproject/ovsdb/providers/device/OvsdbDeviceProvider.java
@@ -15,21 +15,6 @@
  */
 package org.onosproject.ovsdb.providers.device;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.onlab.util.Tools.groupedThreads;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.net.URI;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-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.onlab.packet.ChassisId;
 import org.onlab.packet.IpAddress;
 import org.onosproject.mastership.MastershipService;
@@ -54,27 +39,40 @@
 import org.onosproject.ovsdb.controller.OvsdbController;
 import org.onosproject.ovsdb.controller.OvsdbNodeId;
 import org.onosproject.ovsdb.controller.OvsdbNodeListener;
+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.net.URI;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.util.Tools.groupedThreads;
+import static org.slf4j.LoggerFactory.getLogger;
+
 /**
  * Provider which uses an ovsdb controller to detect device.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = DeviceProvider.class)
 public class OvsdbDeviceProvider extends AbstractProvider
         implements DeviceProvider {
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected OvsdbController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
     private DeviceProviderService providerService;
diff --git a/providers/ovsdb/host/src/main/java/org/onosproject/ovsdb/provider/host/OvsdbHostProvider.java b/providers/ovsdb/host/src/main/java/org/onosproject/ovsdb/provider/host/OvsdbHostProvider.java
index cacbd1a..9485e9f 100644
--- a/providers/ovsdb/host/src/main/java/org/onosproject/ovsdb/provider/host/OvsdbHostProvider.java
+++ b/providers/ovsdb/host/src/main/java/org/onosproject/ovsdb/provider/host/OvsdbHostProvider.java
@@ -15,19 +15,6 @@
  */
 package org.onosproject.ovsdb.provider.host;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-import static org.onlab.util.Tools.toHex;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.net.URI;
-import java.net.URISyntaxException;
-
-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.VlanId;
 import org.onosproject.core.CoreService;
 import org.onosproject.net.DefaultAnnotations;
@@ -49,22 +36,33 @@
 import org.onosproject.ovsdb.controller.OvsdbEvent;
 import org.onosproject.ovsdb.controller.OvsdbEventListener;
 import org.onosproject.ovsdb.controller.OvsdbEventSubject;
+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.net.URI;
+import java.net.URISyntaxException;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.util.Tools.toHex;
+import static org.slf4j.LoggerFactory.getLogger;
+
 /**
  * Provider which uses an ovsdb controller to detect host.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = HostProvider.class)
 public class OvsdbHostProvider extends AbstractProvider implements HostProvider {
     private final Logger log = getLogger(getClass());
 
-    @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 OvsdbController controller;
 
     private HostProviderService providerService;
diff --git a/providers/ovsdb/tunnel/src/main/java/org/onosproject/ovsdb/provider/tunnel/OvsdbTunnelProvider.java b/providers/ovsdb/tunnel/src/main/java/org/onosproject/ovsdb/provider/tunnel/OvsdbTunnelProvider.java
index 264e05b..af919b1 100644
--- a/providers/ovsdb/tunnel/src/main/java/org/onosproject/ovsdb/provider/tunnel/OvsdbTunnelProvider.java
+++ b/providers/ovsdb/tunnel/src/main/java/org/onosproject/ovsdb/provider/tunnel/OvsdbTunnelProvider.java
@@ -15,14 +15,6 @@
  */
 package org.onosproject.ovsdb.provider.tunnel;
 
-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 org.onosproject.incubator.net.tunnel.Tunnel;
 import org.onosproject.incubator.net.tunnel.TunnelDescription;
 import org.onosproject.incubator.net.tunnel.TunnelId;
@@ -33,18 +25,24 @@
 import org.onosproject.net.Path;
 import org.onosproject.net.provider.AbstractProvider;
 import org.onosproject.net.provider.ProviderId;
+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;
+
 /**
  * Provider which uses when tunnel added/removed.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = TunnelProvider.class)
 public class OvsdbTunnelProvider extends AbstractProvider
         implements TunnelProvider {
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TunnelProviderRegistry providerRegistry;
 
     private TunnelProviderService providerService;
diff --git a/providers/p4runtime/packet/src/main/java/org/onosproject/provider/p4runtime/packet/impl/P4RuntimePacketProvider.java b/providers/p4runtime/packet/src/main/java/org/onosproject/provider/p4runtime/packet/impl/P4RuntimePacketProvider.java
index 8693eff..22cfc02 100644
--- a/providers/p4runtime/packet/src/main/java/org/onosproject/provider/p4runtime/packet/impl/P4RuntimePacketProvider.java
+++ b/providers/p4runtime/packet/src/main/java/org/onosproject/provider/p4runtime/packet/impl/P4RuntimePacketProvider.java
@@ -17,11 +17,11 @@
 package org.onosproject.provider.p4runtime.packet.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.mastership.MastershipService;
 import org.onosproject.net.Device;
 import org.onosproject.net.DeviceId;
@@ -59,16 +59,16 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected P4RuntimeController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PacketProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
     private PacketProviderService providerService;
diff --git a/providers/pcep/topology/src/main/java/org/onosproject/provider/pcep/topology/impl/PcepTopologyProvider.java b/providers/pcep/topology/src/main/java/org/onosproject/provider/pcep/topology/impl/PcepTopologyProvider.java
index c4f6a50..d0f8c1b 100644
--- a/providers/pcep/topology/src/main/java/org/onosproject/provider/pcep/topology/impl/PcepTopologyProvider.java
+++ b/providers/pcep/topology/src/main/java/org/onosproject/provider/pcep/topology/impl/PcepTopologyProvider.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.provider.pcep.topology.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.ChassisId;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.DefaultAnnotations;
@@ -92,25 +92,25 @@
     private static final Logger log = LoggerFactory
             .getLogger(PcepTopologyProvider.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkProviderRegistry linkProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceProviderRegistry deviceProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PcepController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PcepClientController pcepClientController;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry netConfigRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService netConfigService;
 
     private DeviceProviderService deviceProviderService;
diff --git a/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java b/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java
index 4b7b605..41215ba 100644
--- a/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java
+++ b/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/PcepTunnelProvider.java
@@ -16,14 +16,6 @@
 package org.onosproject.provider.pcep.tunnel.impl;
 
 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.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.graph.ScalarWeight;
 import org.onlab.packet.Ip4Address;
 import org.onlab.packet.IpAddress;
@@ -88,8 +80,8 @@
 import org.onosproject.pcep.server.PcepEventListener;
 import org.onosproject.pcep.server.PcepLspStatus;
 import org.onosproject.pcep.server.PcepLspSyncAction;
-import org.onosproject.pcep.server.SrpIdGenerators;
 import org.onosproject.pcep.server.PcepSyncStatus;
+import org.onosproject.pcep.server.SrpIdGenerators;
 import org.onosproject.pcepio.exceptions.PcepParseException;
 import org.onosproject.pcepio.protocol.PcInitiatedLspRequest;
 import org.onosproject.pcepio.protocol.PcepAttribute;
@@ -114,7 +106,12 @@
 import org.onosproject.pcepio.types.StatefulIPv4LspIdentifiersTlv;
 import org.onosproject.pcepio.types.SymbolicPathNameTlv;
 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.ArrayList;
@@ -136,39 +133,38 @@
 import static com.google.common.base.Strings.isNullOrEmpty;
 import static org.onlab.util.Tools.get;
 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.net.DefaultAnnotations.EMPTY;
 import static org.onosproject.net.DeviceId.deviceId;
 import static org.onosproject.net.PortNumber.portNumber;
 import static org.onosproject.pcep.api.PcepDpid.uri;
-import static org.onosproject.pcep.server.LspType.WITH_SIGNALLING;
 import static org.onosproject.pcep.server.LspType.SR_WITHOUT_SIGNALLING;
 import static org.onosproject.pcep.server.LspType.WITHOUT_SIGNALLING_AND_WITHOUT_SR;
+import static org.onosproject.pcep.server.LspType.WITH_SIGNALLING;
 import static org.onosproject.pcep.server.PcepAnnotationKeys.BANDWIDTH;
+import static org.onosproject.pcep.server.PcepAnnotationKeys.COST_TYPE;
+import static org.onosproject.pcep.server.PcepAnnotationKeys.DELEGATE;
 import static org.onosproject.pcep.server.PcepAnnotationKeys.LOCAL_LSP_ID;
 import static org.onosproject.pcep.server.PcepAnnotationKeys.LSP_SIG_TYPE;
 import static org.onosproject.pcep.server.PcepAnnotationKeys.PCC_TUNNEL_ID;
 import static org.onosproject.pcep.server.PcepAnnotationKeys.PCE_INIT;
 import static org.onosproject.pcep.server.PcepAnnotationKeys.PLSP_ID;
-import static org.onosproject.pcep.server.PcepAnnotationKeys.DELEGATE;
-import static org.onosproject.pcep.server.PcepAnnotationKeys.COST_TYPE;
-import static org.onosproject.provider.pcep.tunnel.impl.RequestType.CREATE;
-import static org.onosproject.provider.pcep.tunnel.impl.RequestType.DELETE;
-import static org.onosproject.provider.pcep.tunnel.impl.RequestType.LSP_STATE_RPT;
-import static org.onosproject.provider.pcep.tunnel.impl.RequestType.UPDATE;
-import static org.onosproject.incubator.net.tunnel.Tunnel.State.UNSTABLE;
 import static org.onosproject.pcep.server.PcepLspSyncAction.REMOVE;
 import static org.onosproject.pcep.server.PcepLspSyncAction.SEND_UPDATE;
 import static org.onosproject.pcepio.protocol.ver1.PcepMetricObjectVer1.IGP_METRIC;
 import static org.onosproject.pcepio.protocol.ver1.PcepMetricObjectVer1.TE_METRIC;
+import static org.onosproject.provider.pcep.tunnel.impl.RequestType.CREATE;
+import static org.onosproject.provider.pcep.tunnel.impl.RequestType.DELETE;
+import static org.onosproject.provider.pcep.tunnel.impl.RequestType.LSP_STATE_RPT;
+import static org.onosproject.provider.pcep.tunnel.impl.RequestType.UPDATE;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
  * Provider which uses an PCEP controller to detect, update, create network
  * tunnels.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = TunnelProvider.class)
 public class PcepTunnelProvider extends AbstractProvider implements TunnelProvider {
 
     private static final Logger log = getLogger(PcepTunnelProvider.class);
@@ -183,37 +179,37 @@
     public static final String LSRID = "lsrId";
 
     static final int POLL_INTERVAL = 10;
-    @Property(name = "tunnelStatsPollFrequency", intValue = POLL_INTERVAL,
-            label = "Frequency (in seconds) for polling tunnel statistics")
+    //@Property(name = "tunnelStatsPollFrequency", intValue = POLL_INTERVAL,
+    //        label = "Frequency (in seconds) for polling tunnel statistics")
     private int tunnelStatsPollFrequency = POLL_INTERVAL;
 
     private static final String TUNNLE_NOT_NULL = "Create failed,The given port may be wrong or has been occupied.";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TunnelProviderRegistry tunnelProviderRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PcepController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PcepClientController pcepClientController;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TunnelService tunnelService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected TunnelAdminService tunnelAdminService;
 
-    @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;
 
     TunnelProviderService service;
diff --git a/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/TunnelStatsCollector.java b/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/TunnelStatsCollector.java
index c629f61..bae93fc 100644
--- a/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/TunnelStatsCollector.java
+++ b/providers/pcep/tunnel/src/main/java/org/onosproject/provider/pcep/tunnel/impl/TunnelStatsCollector.java
@@ -17,8 +17,8 @@
 package org.onosproject.provider.pcep.tunnel.impl;
 
 
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.util.Timer;
 import org.onosproject.pcep.api.PcepController;
 import org.slf4j.Logger;
@@ -35,7 +35,7 @@
 public class TunnelStatsCollector implements TimerTask {
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected PcepController controller;
 
     private int refreshInterval;
diff --git a/providers/rest/device/src/main/java/org/onosproject/provider/rest/device/impl/RestDeviceProvider.java b/providers/rest/device/src/main/java/org/onosproject/provider/rest/device/impl/RestDeviceProvider.java
index e6d8b7b..e63e6e0 100644
--- a/providers/rest/device/src/main/java/org/onosproject/provider/rest/device/impl/RestDeviceProvider.java
+++ b/providers/rest/device/src/main/java/org/onosproject/provider/rest/device/impl/RestDeviceProvider.java
@@ -18,13 +18,6 @@
 
 import com.google.common.base.Objects;
 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.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.ChassisId;
 import org.onlab.util.SharedExecutors;
 import org.onlab.util.SharedScheduledExecutorService;
@@ -68,6 +61,12 @@
 import org.onosproject.protocol.rest.RestSBController;
 import org.onosproject.protocol.rest.RestSBDevice;
 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 javax.ws.rs.ProcessingException;
@@ -98,7 +97,7 @@
 /**
  * Provider for devices that use REST as means of configuration communication.
  */
-@Component(immediate = true)
+@Component(immediate = true, service = DeviceProvider.class)
 public class RestDeviceProvider extends AbstractProvider
         implements DeviceProvider {
     private static final String APP_NAME = "org.onosproject.restsb";
@@ -112,31 +111,31 @@
     private static final int EXECUTOR_THREAD_POOL_SIZE = 8;
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RestSBController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry netCfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService compCfgService;
 
-    @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 DriverService driverService;
 
     private static final int DEFAULT_POLL_FREQUENCY_SECONDS = 30;
-    @Property(name = POLL_FREQUENCY, intValue = DEFAULT_POLL_FREQUENCY_SECONDS,
-            label = "Configure poll frequency for port status and statistics; " +
-                    "default is 30 seconds")
+    //@Property(name = POLL_FREQUENCY, intValue = DEFAULT_POLL_FREQUENCY_SECONDS,
+    //        label = "Configure poll frequency for port status and statistics; " +
+    //                "default is 30 seconds")
     private int pollFrequency = DEFAULT_POLL_FREQUENCY_SECONDS;
 
     private DeviceProviderService providerService;
diff --git a/providers/snmp/alarm/src/main/java/org/onosproject/provider/snmp/alarm/impl/SnmpAlarmProvider.java b/providers/snmp/alarm/src/main/java/org/onosproject/provider/snmp/alarm/impl/SnmpAlarmProvider.java
index 49874dd..1b29e00 100644
--- a/providers/snmp/alarm/src/main/java/org/onosproject/provider/snmp/alarm/impl/SnmpAlarmProvider.java
+++ b/providers/snmp/alarm/src/main/java/org/onosproject/provider/snmp/alarm/impl/SnmpAlarmProvider.java
@@ -17,12 +17,12 @@
 package org.onosproject.provider.snmp.alarm.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.Modified;
-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.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.IpAddress;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.core.ApplicationId;
@@ -80,25 +80,25 @@
     public static final String COLON = ":";
     private final Logger log = getLogger(SnmpAlarmProvider.class);
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SnmpController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected AlarmProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @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 CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
     private static final String APP_NAME = "org.onosproject.snmp";
diff --git a/providers/snmp/device/src/main/java/org/onosproject/provider/snmp/device/impl/SnmpDeviceProvider.java b/providers/snmp/device/src/main/java/org/onosproject/provider/snmp/device/impl/SnmpDeviceProvider.java
index 66ee7c5..ddd81c7 100644
--- a/providers/snmp/device/src/main/java/org/onosproject/provider/snmp/device/impl/SnmpDeviceProvider.java
+++ b/providers/snmp/device/src/main/java/org/onosproject/provider/snmp/device/impl/SnmpDeviceProvider.java
@@ -15,12 +15,12 @@
  */
 package org.onosproject.provider.snmp.device.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.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.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.onlab.packet.ChassisId;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -75,22 +75,22 @@
     private static final String APP_NAME = "org.onosproject.snmp";
     protected static final String SCHEME = "snmp";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected SnmpController controller;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceStore deviceStore;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry netCfgService;
 
     protected DeviceProviderService providerService;
diff --git a/providers/tl1/device/src/main/java/org/onosproject/provider/tl1/device/impl/Tl1DeviceProvider.java b/providers/tl1/device/src/main/java/org/onosproject/provider/tl1/device/impl/Tl1DeviceProvider.java
index b9a6237..23f7ad2 100644
--- a/providers/tl1/device/src/main/java/org/onosproject/provider/tl1/device/impl/Tl1DeviceProvider.java
+++ b/providers/tl1/device/src/main/java/org/onosproject/provider/tl1/device/impl/Tl1DeviceProvider.java
@@ -15,11 +15,11 @@
  */
 package org.onosproject.provider.tl1.device.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.ChassisId;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -77,22 +77,22 @@
 
     private final Logger log = getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigRegistry cfgRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceProviderRegistry providerRegistry;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceAdminService deviceAdminService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected Tl1Controller controller;
 
     private ApplicationId appId;
diff --git a/providers/xmpp/device/src/main/java/org/onosproject/provider/xmpp/device/impl/XmppDeviceProvider.java b/providers/xmpp/device/src/main/java/org/onosproject/provider/xmpp/device/impl/XmppDeviceProvider.java
index 069fc05..6d9967e 100644
--- a/providers/xmpp/device/src/main/java/org/onosproject/provider/xmpp/device/impl/XmppDeviceProvider.java
+++ b/providers/xmpp/device/src/main/java/org/onosproject/provider/xmpp/device/impl/XmppDeviceProvider.java
@@ -17,11 +17,11 @@
 package org.onosproject.provider.xmpp.device.impl;
 
 import com.google.common.base.Preconditions;
-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.ChassisId;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -68,16 +68,16 @@
     private static final String SERIAL_NUMBER = "unknown";
     private static final String IS_NULL_MSG = "XMPP device info is null";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceProviderRegistry providerRegistry;
 
-    @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 XmppController controller;
 
     protected DeviceProviderService providerService;