[WIP] Upgrade ONOS to karaf version 4.2.1

Change-Id: I7cd40c995bdf1c80f94b1895fb3344e32404c7fa
diff --git a/core/store/dist/src/main/java/org/onosproject/store/host/impl/DefaultHostProbeStore.java b/core/store/dist/src/main/java/org/onosproject/store/host/impl/DefaultHostProbeStore.java
index 33cb7ad..4aac3a3 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/host/impl/DefaultHostProbeStore.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/host/impl/DefaultHostProbeStore.java
@@ -18,12 +18,6 @@
 import com.google.common.cache.Cache;
 import com.google.common.cache.CacheBuilder;
 import com.google.common.cache.RemovalNotification;
-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.packet.MacAddress;
 import org.onlab.util.KryoNamespace;
 import org.onosproject.net.ConnectPoint;
@@ -31,8 +25,8 @@
 import org.onosproject.net.host.HostProbe;
 import org.onosproject.net.host.HostProbeStore;
 import org.onosproject.net.host.HostProbingEvent;
-import org.onosproject.net.host.ProbeMode;
 import org.onosproject.net.host.HostProbingStoreDelegate;
+import org.onosproject.net.host.ProbeMode;
 import org.onosproject.store.AbstractStore;
 import org.onosproject.store.serializers.KryoNamespaces;
 import org.onosproject.store.service.AtomicCounter;
@@ -42,6 +36,11 @@
 import org.onosproject.store.service.Serializer;
 import org.onosproject.store.service.StorageService;
 import org.onosproject.store.service.Versioned;
+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.Map;
@@ -52,11 +51,10 @@
 import static org.onlab.util.Tools.groupedThreads;
 import static org.slf4j.LoggerFactory.getLogger;
 
-@Component(immediate = true)
-@Service
+@Component(immediate = true, service = HostProbeStore.class)
 public class DefaultHostProbeStore extends AbstractStore<HostProbingEvent, HostProbingStoreDelegate>
         implements HostProbeStore {
-    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    @Reference(cardinality = ReferenceCardinality.MANDATORY)
     protected StorageService storageService;
 
     private final Logger log = getLogger(getClass());