import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
-import org.opendaylight.controller.sal.utils.ServiceHelper;
+import org.opendaylight.ovsdb.utils.servicehelper.ServiceHelper;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
import org.opendaylight.ovsdb.lib.OvsdbClient;
import org.opendaylight.ovsdb.lib.OvsdbConnection;