[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/apps/intentsync/src/main/java/org/onosproject/intentsync/IntentSynchronizer.java b/apps/intentsync/src/main/java/org/onosproject/intentsync/IntentSynchronizer.java
index c15ea3c..1f33976 100644
--- a/apps/intentsync/src/main/java/org/onosproject/intentsync/IntentSynchronizer.java
+++ b/apps/intentsync/src/main/java/org/onosproject/intentsync/IntentSynchronizer.java
@@ -16,12 +16,6 @@
 
 package org.onosproject.intentsync;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.LeadershipEvent;
 import org.onosproject.cluster.LeadershipEventListener;
@@ -34,6 +28,11 @@
 import org.onosproject.net.intent.IntentState;
 import org.onosproject.net.intent.IntentUtils;
 import org.onosproject.net.intent.Key;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -51,8 +50,8 @@
 /**
  * Synchronizes intents between an in-memory intent store and the IntentService.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = { IntentSynchronizationService.class,
+        IntentSynchronizationAdminService.class })
 public class IntentSynchronizer implements IntentSynchronizationService,
         IntentSynchronizationAdminService {
 
@@ -60,16 +59,16 @@
 
     private static final String APP_NAME = "org.onosproject.intentsynchronizer";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LeadershipService leadershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
     private NodeId localNodeId;