void testNullProperties() throws CIFSException {
        // PropertyConfiguration doesn't handle null properties
        // It should throw NullPointerException
        assertThrows(NullPointerException.class, () -> {
            new PropertyConfiguration(null);
        });
    }

    @Test
    @DisplayName("Should handle empty properties")
    void testEmptyProperties() throws CIFSException {
        // Given

     * @see jcifs.SmbWatchHandle#call()
     */
    @Override
    public List<FileNotifyInformation> call() throws CIFSException {
        return watch();
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.SmbWatchHandle#close()
     */
    @Override
    public void close() throws CIFSException {
        if (this.handle.isValid()) {
            this.handle.close(0L);
        }
    }

    void testReadPacketTypeSpecialStream() throws IOException {
        // Create a mock stream that returns exactly -1 on first read (special case)
        when(mockInputStream.read(any(byte[].class), anyInt(), anyInt())).thenReturn(-1); // Immediate EOF

        byte[] buffer = new byte[10];

        // The readn method will return 0 when stream returns -1
        // So this should still throw IOException, not return -1

   *
   * <p><b>Java 8+ users:</b> use {@link Long#parseUnsignedLong(String)} instead.
   *
   * @throws NumberFormatException if the string does not contain a valid unsigned {@code long}
   *     value
   * @throws NullPointerException if {@code string} is null (in contrast to {@link
   *     Long#parseLong(String)})
   */
  @CanIgnoreReturnValue

    @Override
    public Object getContent() throws IOException {
        handshake();
        return this.connection.getContent();
    }

    @Override
    public Object getContent(final Class[] classes) throws IOException {
        handshake();
        return this.connection.getContent(classes);
    }

    @Override
    public Permission getPermission() throws IOException {

    void ensureDFSResolved_throws() throws Exception {
        // Arrange: configure the mock to throw
        doThrow(new CIFSException("DFS resolution failed")).when(handle).ensureDFSResolved();

        // Act + Assert: exception is propagated with message
        CIFSException ex = assertThrows(CIFSException.class, () -> handle.ensureDFSResolved());

    }

    @Test
    @DisplayName("remove() throws UnsupportedOperationException with 'remove' message")
    void removeUnsupported() throws Exception {
        // Arrange
        stubAcquireReturnsSelf();
        TestIterator it = TestIterator.create(tree, parent, "*", null, 0, entry("a"), List.of(new FileEntry[][] { new FileEntry[] {} }));

     *
     * @param macSigningKey the MAC signing key for message authentication
     * @param bypass whether to bypass MAC signing
     * @throws SmbException if MD5 algorithm is not available
     */
    public SigningDigest(final byte[] macSigningKey, final boolean bypass) throws SmbException {
        try {
            digest = MessageDigest.getInstance("MD5");
        } catch (final NoSuchAlgorithmException ex) {

    }

    @Override
    public InputStream openStream() throws IOException {
      return sliceStream(ByteSource.this.openStream());
    }

    @Override
    public InputStream openBufferedStream() throws IOException {
      return sliceStream(ByteSource.this.openBufferedStream());
    }

    private InputStream sliceStream(InputStream in) throws IOException {
      if (offset > 0) {
        long skipped;

            // Assert - should not throw exception when file exists
        }
    }

    @Nested
    class WhenHandlingConnections {

        @Test
        void testConnect() throws IOException {
            // Arrange
            doNothing().when(smbFile).connect();

            // Act
            smbFile.connect();

            // Assert - should not throw exception
        }