import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
-import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
+import org.opendaylight.mdsal.binding.api.DataTreeModification;
import org.opendaylight.ovsdb.hwvtepsouthbound.HwvtepSouthboundConstants;
import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;