import static org.opendaylight.netconf.sal.connect.netconf.util.NetconfMessageTransformUtil.NETCONF_DATA_NODEID;
import static org.opendaylight.netconf.sal.connect.netconf.util.NetconfMessageTransformUtil.NETCONF_DATA_QNAME;
-import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
+import java.util.Optional;
import javax.xml.transform.dom.DOMSource;
import org.opendaylight.netconf.api.DocumentedException;
import org.opendaylight.netconf.api.xml.XmlElement;