/**
* Helper class to keep connection status of netconf node and event source registration object.
*/
-public class NetconfEventSourceRegistration implements AutoCloseable {
+public final class NetconfEventSourceRegistration implements AutoCloseable {
private static final Logger LOG = LoggerFactory.getLogger(NetconfEventSourceRegistration.class);
private static final YangInstanceIdentifier NETCONF_DEVICE_DOM_PATH = YangInstanceIdentifier.builder()