return this.getCause();
    }

    /**
     * @param e
     * @return a CIFS exception wrapped in an SmbException
     */
    static SmbException wrap(final CIFSException e) {
        if (e instanceof SmbException) {
            return (SmbException) e;
        }
        return new SmbException(e.getMessage(), e);
    }

    /** The root cause exception */
    private Throwable rootCause;

    SmbException() {
    }

    SmbException(final int errcode, final Throwable rootCause) {
        super(getMessageByCode(errcode));
        status = getStatusByCode(errcode);
        this.rootCause = rootCause;
    }

    SmbException(final String msg) {
        super(msg);
        status = NT_STATUS_UNSUCCESSFUL;
    }

     */
    public SmbException(String message, int errorCode, Category category) {
        this(message, errorCode, Severity.PERMANENT, category);
    }

    /**
     * Adds context information to the exception
     *
     * @param key the context key
     * @param value the context value
     * @return this exception for chaining
     */
    public SmbException withContext(String key, Object value) {

    void testRetriableExceptions() {
        // Test non-retriable errors
        SmbException accessDenied = new SmbException(NtStatus.NT_STATUS_ACCESS_DENIED, false);
        // Note: isRetriable() method does not exist in SmbException
        assertNotNull(accessDenied);

        SmbException notFound = new SmbException(NtStatus.NT_STATUS_OBJECT_NAME_NOT_FOUND, false);
        assertNotNull(notFound);

        SmbException ex = new SmbException(0, root);
        assertSame(root, ex.getRootCause());
    }

    /**
     * Verify that the string-ctor sets status to {@code NT_STATUS_UNSUCCESSFUL}.
     */
    @Test
    @DisplayName("String constructor sets NT_STATUS_UNSUCCESSFUL status")
    void testStringConstructor() {
        SmbException ex = new SmbException("custom message");

    }

    @Test
    void testConstructor() throws SmbException {
        assertNotNull(smbRandomAccessFile);
        assertEquals(0, smbRandomAccessFile.getFilePointer());
    }

    @Test
    void testGetFilePointer() throws SmbException {
        assertEquals(0, smbRandomAccessFile.getFilePointer());
    }

    @Test
    void testSeek() throws SmbException {
        long newPosition = 100L;

        SmbException expectedException = new SmbException("Failed to get attributes");
        when(mockFile.getAttributes()).thenThrow(expectedException);

        // When calling accept
        // Then an SmbException should be thrown
        SmbException thrown = assertThrows(SmbException.class, () -> {
            dosFileFilter.accept(mockFile);
        });

        assertEquals(SmbException.getStatusByCode(code), e.getNtStatus(), "status for code " + Integer.toHexString(code));
    }

    @Test
    void negativeCodeDefaultsToUnsuccessful() {
        SmbAuthException e = new SmbAuthException(-1);
        assertEquals(SmbException.getStatusByCode(-1), e.getNtStatus());
        assertEquals(SmbException.getMessageByCode(-1), e.getMessage());
    }

    @Test

     * @return array of SmbFile objects representing the directory contents
     * @throws SmbException if an error occurs
     */
    public static SmbFile[] listFilesWithLeasing(SmbFile smbFile) throws SmbException {
        if (!smbFile.isDirectory()) {
            throw new SmbException("Not a directory: " + smbFile.getPath());
        }

        try (SmbTreeHandleImpl th = smbFile.ensureTreeConnected()) {

     * @return whether signatures are supported but not required
     * @throws SmbException if an error occurs checking signing status
     */
    boolean isSigningOptional() throws SmbException;

    /**
     * Checks if message signing is mandatory for this connection.
     *
     * @return whether signatures are enforced from either side
     * @throws SmbException if an error occurs checking signing status
     */