* any one time. If this method throws an exception or the connect timeout
     * expires an encapsulating TransportException will be thrown from connect
     * and the transport will be in error.
     */

    /**
     * Establish the transport connection
     *
     * @throws Exception if the connection fails
     */
    protected abstract void doConnect() throws Exception;

    /*

    @Test
    void testNoArgsConstructor() {
        // Test the constructor with no arguments
        RequestTimeoutException exception = new RequestTimeoutException();
        assertNull(exception.getMessage(), "Message should be null for no-arg constructor");
        assertNull(exception.getCause(), "Cause should be null for no-arg constructor");
    }

    @Test
    void testMessageConstructor() {

    }

    /**
     * Test exception handling during cleanup
     */
    @Test
    @Timeout(5)
    public void testExceptionHandling() throws Exception {
        SmbSessionImpl session = new SmbSessionImpl(mockContext, "testhost", "testdomain", mockTransport);

        // Configure transport to throw exception on release
        Mockito.doThrow(new RuntimeException("Test exception")).when(mockTransport).release();

    @Test
    void testNoArgsConstructor() {
        // Test the no-argument constructor
        ConnectionTimeoutException exception = new ConnectionTimeoutException();
        assertNull(exception.getMessage(), "Message should be null for no-arg constructor");
        assertNull(exception.getCause(), "Cause should be null for no-arg constructor");
    }

    @Test
    void testStringConstructor() {

    @Test
    @DisplayName("Default constructor should create exception with null message and cause")
    void testDefaultConstructor() {
        // Given & When
        CIFSUnsupportedCryptoException exception = new CIFSUnsupportedCryptoException();

        // Then
        assertNull(exception.getMessage(), "Default constructor should have null message");
        assertNull(exception.getCause(), "Default constructor should have null cause");

                assertTrue(e.getMessage() != null, "Exception should have a message");
            }

            try {
                digest.verify(data, 0, data.length, 0, response);
                // If no exception is thrown, accept graceful handling
                assertTrue(true, "Verify operation after wipe should either throw exception or handle gracefully");

        assertThrows(SmbException.class, () -> {
            strictValidator.validatePath("\\share\\file<script>.txt");
        });
    }

    @Test
    public void testTrailingSpace() throws Exception {
        assertThrows(SmbException.class, () -> {
            validator.validatePath("\\share\\file ");
        });
    }

    @Test
    public void testTrailingPeriod() throws Exception {

            throw new IOException("Witness unregister RPC failed", e);
        }
    }
    
    public WitnessHeartbeatResponse heartbeat(WitnessHeartbeatRequest request) throws IOException {
        try {
            WitnessHeartbeatStub stub = new WitnessHeartbeatStub(request);
            handle.sendrecv(stub);
            return stub.getResponse();
        } catch (Exception e) {

        void testNullConfigurationThrowsException() throws Exception {
            // Given
            Constructor<SmbComNtCancel> constructor = SmbComNtCancel.class.getDeclaredConstructor(Configuration.class, int.class);
            constructor.setAccessible(true);

            // When & Then
            InvocationTargetException exception = assertThrows(InvocationTargetException.class, () -> constructor.newInstance(null, 1));

     * Tests the constructor with a null byte array, which should throw an exception.
     */
    @Test
    void testConstructorWithNullData() {
        // A null byte array should cause a PACDecodingException.
        PACDecodingException exception = assertThrows(PACDecodingException.class, () -> new PacCredentialType(null));
        assertEquals("Invalid PAC credential type", exception.getMessage());
    }

    /**