[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/apps/events/src/main/java/org/onosproject/events/EventHistoryManager.java b/apps/events/src/main/java/org/onosproject/events/EventHistoryManager.java
index 0bdd94b..549b358 100644
--- a/apps/events/src/main/java/org/onosproject/events/EventHistoryManager.java
+++ b/apps/events/src/main/java/org/onosproject/events/EventHistoryManager.java
@@ -15,22 +15,6 @@
  */
 package org.onosproject.events;
 
-import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor;
-import static org.onlab.util.Tools.groupedThreads;
-import static org.onlab.util.Tools.minPriority;
-
-import java.util.Deque;
-import java.util.concurrent.ConcurrentLinkedDeque;
-import java.util.concurrent.ScheduledExecutorService;
-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.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.util.UnmodifiableDeque;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.core.ApplicationId;
@@ -47,55 +31,68 @@
 import org.onosproject.net.intent.IntentService;
 import org.onosproject.net.link.LinkService;
 import org.onosproject.net.topology.TopologyService;
+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.Deque;
+import java.util.concurrent.ConcurrentLinkedDeque;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+
+import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor;
+import static org.onlab.util.Tools.groupedThreads;
+import static org.onlab.util.Tools.minPriority;
+
 /**
  * Application to store history of instance local ONOS Events.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = EventHistoryManager.class)
 public class EventHistoryManager
     implements EventHistoryService {
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @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 DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @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 ClusterService clusterService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EdgePortService edgeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected IntentService intentService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService netcfgService;
 
-    @Property(name = "excludeStatsEvent", boolValue = true,
-              label = "Exclude stats related events")
+    //@Property(name = "excludeStatsEvent", boolValue = true,
+    //          label = "Exclude stats related events")
     private boolean excludeStatsEvent = true;
 
-    @Property(name = "sizeLimit", intValue = 10_000,
-              label = "Number of event history to store")
+    //@Property(name = "sizeLimit", intValue = 10_000,
+    //          label = "Number of event history to store")
     private int sizeLimit = 10_000;
 
     private ApplicationId appId;