[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/app/src/main/java/org/onosproject/t3/impl/TroubleshootManager.java b/app/src/main/java/org/onosproject/t3/impl/TroubleshootManager.java
index 018f6ac..df73a61 100644
--- a/app/src/main/java/org/onosproject/t3/impl/TroubleshootManager.java
+++ b/app/src/main/java/org/onosproject/t3/impl/TroubleshootManager.java
@@ -22,10 +22,6 @@
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
 import org.apache.commons.lang3.tuple.Pair;
-import org.apache.felix.scr.annotations.Component;
-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.onosproject.cluster.NodeId;
@@ -74,6 +70,9 @@
 import org.onosproject.t3.api.GroupsInDevice;
 import org.onosproject.t3.api.StaticPacketTrace;
 import org.onosproject.t3.api.TroubleshootService;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferenceCardinality;
 import org.slf4j.Logger;
 
 import java.net.UnknownHostException;
@@ -103,45 +102,44 @@
  * Given a representation of a packet follows it's path in the network according to the existing flows and groups in
  * the devices.
  */
-@Service
-@Component(immediate = true)
+@Component(immediate = true, service = TroubleshootService.class)
 public class TroubleshootManager implements TroubleshootService {
 
     private static final Logger log = getLogger(TroubleshootManager.class);
 
     static final String PACKET_TO_CONTROLLER = "Packet goes to the controller";
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected FlowRuleService flowRuleService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected GroupService groupService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected LinkService linkService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected HostService hostService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DriverService driverService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected DeviceService deviceService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MastershipService mastershipService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected NetworkConfigService networkConfigService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected EdgePortService edgePortService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected RouteService routeService;
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected MulticastRouteService mcastService;
 
     @Override