[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/apps/acl/src/main/java/org/onosproject/acl/impl/AclManager.java b/apps/acl/src/main/java/org/onosproject/acl/impl/AclManager.java
index d7e7748..8b39661 100644
--- a/apps/acl/src/main/java/org/onosproject/acl/impl/AclManager.java
+++ b/apps/acl/src/main/java/org/onosproject/acl/impl/AclManager.java
@@ -29,12 +29,6 @@
 import org.onosproject.acl.AclRule;
 import org.onosproject.acl.AclService;
 import org.onosproject.acl.AclStore;
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.acl.RuleId;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
@@ -56,6 +50,11 @@
 import org.onosproject.net.host.HostEvent;
 import org.onosproject.net.host.HostListener;
 import org.onosproject.net.host.HostService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.HashSet;
@@ -67,20 +66,19 @@
 /**
  * Implementation of the ACL service.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = AclService.class)
 public class AclManager implements AclService {
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected AclStore aclStore;
 
     private final Logger log = getLogger(getClass());