* Client implementation for the SMB Witness RPC protocol (MS-SWN).
 * Provides communication with witness servers for monitoring SMB resource availability.
 */
public class WitnessRpcClient implements AutoCloseable {
    private static final Logger log = LoggerFactory.getLogger(WitnessRpcClient.class);

    private final InetAddress serverAddress;
    private final CIFSContext context;
    private volatile boolean connected = false;

        lenient().when(mockResponse.isSuccess()).thenReturn(true);
        lenient().when(mockResponse.getRegistrationId()).thenReturn("test-reg-123");

        WitnessRpcClient mockRpc = mock(WitnessRpcClient.class);
        lenient().when(mockRpc.register(any(WitnessRegisterRequest.class))).thenReturn(mockResponse);

        // Create a test witness client that uses our mock RPC client

    private final ConcurrentHashMap<String, CompletableFuture<Void>> asyncNotifyTasks;
    private final ScheduledExecutorService scheduler;
    private final WitnessRpcClient rpcClient;

    // Witness service endpoint
    private static final String WITNESS_SERVICE_UUID = "ccd8c074-d0e5-4a40-92b4-d074faa6ba28";
    private static final int DEFAULT_WITNESS_PORT = 135; // RPC endpoint mapper

    private final ConcurrentHashMap<String, WitnessNotificationListener> listeners;
    private final ScheduledExecutorService scheduler;
    private final WitnessRpcClient rpcClient;
    
    // Witness service endpoint
    private static final String WITNESS_SERVICE_UUID = "ccd8c074-d0e5-4a40-92b4-d074faa6ba28";