import org.opendaylight.netconf.api.xml.XmlNetconfConstants;
import org.opendaylight.netconf.api.xml.XmlUtil;
import org.opendaylight.netconf.server.NetconfServerSession;
-import org.opendaylight.netconf.util.mapping.AbstractSingletonNetconfOperation;
+import org.opendaylight.netconf.server.api.operations.AbstractSingletonNetconfOperation;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Document;