[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/CfmMepManager.java b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/CfmMepManager.java
index e58a570..e641f3c 100644
--- a/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/CfmMepManager.java
+++ b/apps/cfm/app/src/main/java/org/onosproject/incubator/net/l2monitoring/cfm/impl/CfmMepManager.java
@@ -15,28 +15,6 @@
  */
 package org.onosproject.incubator.net.l2monitoring.cfm.impl;
 
-import static org.onlab.util.Tools.groupedThreads;
-import static org.slf4j.LoggerFactory.getLogger;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Optional;
-import java.util.Set;
-import java.util.concurrent.ConcurrentLinkedQueue;
-import java.util.concurrent.Executors;
-import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.ScheduledFuture;
-import java.util.concurrent.TimeUnit;
-
-import org.apache.felix.scr.annotations.Activate;
-import org.apache.felix.scr.annotations.Component;
-import org.apache.felix.scr.annotations.Deactivate;
-import org.apache.felix.scr.annotations.Reference;
-import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.apache.felix.scr.annotations.Service;
 import org.onosproject.core.CoreService;
 import org.onosproject.core.IdGenerator;
 import org.onosproject.event.AbstractListenerManager;
@@ -66,13 +44,33 @@
 import org.onosproject.net.device.DeviceEvent;
 import org.onosproject.net.device.DeviceListener;
 import org.onosproject.net.device.DeviceService;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Optional;
+import java.util.Set;
+import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledFuture;
+import java.util.concurrent.TimeUnit;
+
+import static org.onlab.util.Tools.groupedThreads;
+import static org.slf4j.LoggerFactory.getLogger;
+
 /**
  * Provides implementation of the CFM North and South Bound Interfaces.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = CfmMepService.class)
 public class CfmMepManager
     extends AbstractListenerManager<CfmMepEvent, CfmMepListener>
     implements CfmMepService {
@@ -82,16 +80,16 @@
     private InternalDeviceListener deviceListener = null;
     private InternalMdListener mdListener = null;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CoreService coreService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected CfmMdService cfmMdService;
 
     private static final int DEFAULT_POLL_FREQUENCY = 30;
@@ -116,7 +114,7 @@
 
     private IdGenerator idGenerator;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MepStore mepStore;
 
     protected final MepStoreDelegate delegate = new InternalStoreDelegate();