[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/core/net/src/main/java/org/onosproject/net/group/impl/GroupManager.java b/core/net/src/main/java/org/onosproject/net/group/impl/GroupManager.java
index 4a0e409..fa9ba8e 100644
--- a/core/net/src/main/java/org/onosproject/net/group/impl/GroupManager.java
+++ b/core/net/src/main/java/org/onosproject/net/group/impl/GroupManager.java
@@ -15,14 +15,6 @@
  */
 package org.onosproject.net.group.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.Modified;
-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.Tools;
 import org.onosproject.cfg.ComponentConfigService;
 import org.onosproject.core.ApplicationId;
@@ -50,6 +42,12 @@
 import org.onosproject.net.provider.AbstractListenerProviderRegistry;
 import org.onosproject.net.provider.AbstractProviderService;
 import org.osgi.service.component.ComponentContext;
+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.Modified;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.util.Collection;
@@ -69,8 +67,7 @@
 /**
  * Provides implementation of the group service APIs.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true,service = { GroupService.class, GroupProviderRegistry.class })
 public class GroupManager
         extends AbstractListenerProviderRegistry<GroupEvent, GroupListener,
         GroupProvider, GroupProviderService>
@@ -85,29 +82,29 @@
 
     private ExecutorService eventExecutor;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected GroupStore store;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
     // Reference the DriverService to ensure the service is bound prior to initialization of the GroupDriverProvider
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected ComponentConfigService cfgService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
     private static final int DEFAULT_POLL_FREQUENCY = 30;
-    @Property(name = "fallbackGroupPollFrequency", intValue = DEFAULT_POLL_FREQUENCY,
-            label = "Frequency (in seconds) for polling groups via fallback provider")
+    //@Property(name = "fallbackGroupPollFrequency", intValue = DEFAULT_POLL_FREQUENCY,
+    //        label = "Frequency (in seconds) for polling groups via fallback provider")
     private int fallbackGroupPollFrequency = DEFAULT_POLL_FREQUENCY;
 
-    @Property(name = "purgeOnDisconnection", boolValue = false,
-            label = "Purge entries associated with a device when the device goes offline")
+    //@Property(name = "purgeOnDisconnection", boolValue = false,
+    //        label = "Purge entries associated with a device when the device goes offline")
     private boolean purgeOnDisconnection = false;