[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/protocols/pcep/server/ctl/src/main/java/org/onosproject/pcelabelstore/DistributedPceLabelStore.java b/protocols/pcep/server/ctl/src/main/java/org/onosproject/pcelabelstore/DistributedPceLabelStore.java
index 4c6a3cf..6288134 100644
--- a/protocols/pcep/server/ctl/src/main/java/org/onosproject/pcelabelstore/DistributedPceLabelStore.java
+++ b/protocols/pcep/server/ctl/src/main/java/org/onosproject/pcelabelstore/DistributedPceLabelStore.java
@@ -15,25 +15,10 @@
  */
 package org.onosproject.pcelabelstore;
 
-import static com.google.common.base.Preconditions.checkNotNull;
-
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.stream.Collectors;
-
-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.util.KryoNamespace;
-import org.onosproject.incubator.net.tunnel.TunnelId;
 import org.onosproject.incubator.net.resource.label.LabelResource;
 import org.onosproject.incubator.net.resource.label.LabelResourceId;
+import org.onosproject.incubator.net.tunnel.TunnelId;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.Link;
 import org.onosproject.pcelabelstore.api.LspLocalLabelInfo;
@@ -42,15 +27,26 @@
 import org.onosproject.store.service.ConsistentMap;
 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;
 
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
 /**
  * Manages the pool of available labels to devices, links and tunnels.
  */
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = PceLabelStore.class)
 public class DistributedPceLabelStore implements PceLabelStore {
 
     private static final String DEVICE_ID_NULL = "Device ID cannot be null";
@@ -61,7 +57,7 @@
 
     private final Logger log = LoggerFactory.getLogger(getClass());
 
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     // Mapping device with global node label