/**
     * Get existing handle data for reconnection
     * @param path the file path
     * @return the file ID if available, null otherwise
     */
    public byte[] getExistingHandle(String path) {
        HandleInfo info = getHandleForReconnect(path);
        return info != null ? info.getFileId() : null;
    }

    /**
     * Store handle information after successful create
     * @param path the file path

   * {@code get(null)}, {@code keySet().contains(null)} or {@code remove(null)}.
   */
  ALLOWS_NULL_KEY_QUERIES,
  ALLOWS_NULL_KEYS(ALLOWS_NULL_KEY_QUERIES),
  /**
   * The map does not throw {@code NullPointerException} on calls such as {@code
   * containsValue(null)}, {@code values().contains(null)} or {@code values().remove(null)}.
   */
  ALLOWS_NULL_VALUE_QUERIES,

        setDomain(domain);
        setUser(user);

        if (password == null && passwordHash == null || !nonAnonymous && password != null && password.length() == 0) {
            setLMResponse(null);
            setNTResponse(null);
            return;
        }

        if (passwordHash == null) {
            passwordHash = NtlmUtil.getNTHash(password);
        }

        @Override
        public String getMimeType(String file) {
            return null;
        }

        @Override
        public java.util.Set<String> getResourcePaths(String path) {
            return null;
        }

        @Override
        public java.net.URL getResource(String path) {
            return null;
        }

        @Override

    }

    public void myspecifyPropertyCancel(String propertyName) {
        if (__specifiedProperties != null) {
            __specifiedProperties.remove(propertyName);
        }
    }

    public void clearSpecifiedInfo() {
        if (__specifiedProperties != null) {
            __specifiedProperties.clear();
        }
    }

    protected void checkSpecifiedProperty(String propertyName) {

    }

    public void myspecifyPropertyCancel(String propertyName) {
        if (__specifiedProperties != null) {
            __specifiedProperties.remove(propertyName);
        }
    }

    public void clearSpecifiedInfo() {
        if (__specifiedProperties != null) {
            __specifiedProperties.clear();
        }
    }

    protected void checkSpecifiedProperty(String propertyName) {

            checkStatus();
            this.ridx = 0;
            return advance();
        }
        return null;
    }

    private final boolean filter(final FileEntry fe) {
        final String name = fe.getName();
        if (this.nameFilter == null) {
            return true;
        }
        try {
            if (!this.nameFilter.accept(this.parent, name)) {

        if (s != null) {
            batchLimits[0] = Byte.parseByte(s);
        }
        if ((s = Config.getProperty("jcifs.smb1.smb.client.TreeConnectAndX.CreateDirectory")) != null) {
            batchLimits[2] = Byte.parseByte(s);
        }
        if ((s = Config.getProperty("jcifs.smb1.smb.client.TreeConnectAndX.Delete")) != null) {
            batchLimits[3] = Byte.parseByte(s);
        }

        assertSame(user, chain.updateCalls.get(0));
    }

    // Test update with null user
    public void test_update_nullUser() {
        TestAuthenticationChain chain = new TestAuthenticationChain();
        chain.updateThrowsException = false;

        chain.update(null);

        assertEquals(1, chain.updateCalls.size());
        assertNull(chain.updateCalls.get(0));
    }

    @DisplayName("Should handle context with null values")
    void testNullContext() {
        // When
        exception = new SmbOperationException(SmbOperationException.ErrorCode.UNKNOWN_ERROR, "Something went wrong", null, null, null);

        // Then
        assertNotNull(exception.getContext());
        assertTrue(exception.getContext().isEmpty());

        // Adding null context should be safe