-import akka.actor.UntypedActor;
-import akka.event.Logging;
-import akka.event.LoggingAdapter;
-import org.opendaylight.controller.cluster.datastore.messages.Monitor;
+import akka.actor.UntypedAbstractActor;
+import org.opendaylight.controller.cluster.common.actor.Monitor;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;