import com.google.common.base.Optional;
import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
import org.opendaylight.controller.netconf.api.xml.XmlNetconfConstants;
-import org.opendaylight.controller.netconf.util.mapping.AbstractLastNetconfOperation;
+import org.opendaylight.controller.netconf.util.mapping.AbstractSingletonNetconfOperation;
import org.opendaylight.controller.netconf.util.xml.XmlElement;
import org.opendaylight.controller.netconf.util.xml.XmlUtil;
import org.slf4j.Logger;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
-public class Unlock extends AbstractLastNetconfOperation{
+public class Unlock extends AbstractSingletonNetconfOperation {
private static final Logger LOG = LoggerFactory.getLogger(Unlock.class);