[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMepStore.java b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMepStore.java
index c21166a..444ca9c 100644
--- a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMepStore.java
+++ b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/DistributedMepStore.java
@@ -15,12 +15,6 @@
  */
 package org.onosproject.incubator.net.l2monitoring.cfm.impl;
 
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onlab.packet.IpAddress;
 import org.onlab.packet.VlanId;
 import org.onlab.util.KryoNamespace;
@@ -52,6 +46,11 @@
 import org.onosproject.store.service.MapEventListener;
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -64,14 +63,13 @@
 /**
  * MEP Store implementation backed by consistent map.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = MepStore.class)
 public class DistributedMepStore extends AbstractStore<CfmMepEvent, MepStoreDelegate>
     implements MepStore {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private ConsistentMap<MepKeyId, Mep> mepConsistentMap;