import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;
-import org.opendaylight.openflowplugin.api.statistics.MessageObservatory;
+import org.opendaylight.openflowplugin.api.openflow.statistics.MessageObservatory;
import org.opendaylight.yangtools.yang.binding.DataContainer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;