this.provider = Crypto.getProvider();
            break;
        default:
            throw new IllegalArgumentException("Unknown dialect");
        }

        // Initialize the digest once to validate configuration
        this.digest = createMacInstance();
    }

    /**
     * Create a new Mac instance for thread-safe operations
     * @return initialized Mac instance

     * Show the edit page.
     * @param form The edit form.
     * @return The HTML response.
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse edit(final EditForm form) {
        validate(form, messages -> {}, this::asListHtml);
        final String id = form.id;
        accessTokenService.getAccessToken(id).ifPresent(entity -> {
            copyBeanToBean(entity, form,

     *
     * @param form the edit form
     * @return HTML response for the edit page
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse edit(final EditForm form) {
        validate(form, messages -> {}, this::asListHtml);
        final PermissionHelper permissionHelper = ComponentUtil.getPermissionHelper();
        final String id = form.id;
        fileConfigService.getFileConfig(id).ifPresent(entity -> {

     *
     * @param form the login form containing username and password
     * @return the HTML response after login attempt
     */
    @Execute
    public HtmlResponse login(final LoginForm form) {
        validate(form, messages -> {}, () -> asIndexPage(form));
        verifyToken(() -> asIndexPage(form));
        final String username = form.username;
        final String password = form.password;
        form.clearSecurityInfo();

    window.navigator.userLanguage ||
    window.navigator.browserLanguage;

  if (browserLang) {
    langCode = browserLang.split(SEP_CHAR)[0];
  } else {
    langCode = "en";
  }

  $.validate({
    modules: "html5",
    lang: langCode
  });

        entry.updateChild("file1.txt", 1024L, 1000L, false, 0x20, 500L, 800L);
        entry.updateChild("file2.txt", 2048L, 2000L, false, 0x20, 600L, 900L);
        entry.markComplete();

        // Invalidate the cache
        entry.invalidate();

        assertFalse(entry.isComplete());
        assertTrue(entry.hasChanges());
        assertTrue(entry.getChildren().isEmpty());
    }

    @Test

            assertEquals(0, flag & (flag - 1), "Flag should be power of 2: " + Integer.toHexString(flag));
        }

        @Test
        @DisplayName("Should validate all constants are unique")
        void shouldHaveUniqueConstants() {
            int[] accessConstants = { ACE.FILE_READ_DATA, ACE.FILE_WRITE_DATA, ACE.FILE_APPEND_DATA, ACE.FILE_READ_EA, ACE.FILE_WRITE_EA,

        assertEquals("Cp850", SmbConstants.DEFAULT_OEM_ENCODING);
        assertEquals(-1, SmbConstants.FOREVER);
    }

    @Test
    @DisplayName("Should validate flag combinations work correctly")
    void testFlagCombinations() {
        // Test that flags can be combined with bitwise OR
        int combinedShareAccess = SmbConstants.FILE_SHARE_READ | SmbConstants.FILE_SHARE_WRITE;

     * @return HTML response for the web config edit form
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse edit(final EditForm form) {
        validate(form, messages -> {}, this::asListHtml);
        final String id = form.id;
        webConfigService.getWebConfig(id).ifPresent(entity -> {
            copyBeanToBean(entity, form, copyOp -> {

        // Try to get from cache first - O(1) operation
        byte[] buf = bufferQueue.poll();
        if (buf != null) {
            queueSize.decrementAndGet();
            return buf;
        }

        // Validate buffer size to prevent overflow
        int bufferSize = SmbComTransaction.TRANSACTION_BUF_SIZE;
        if (bufferSize < 0 || bufferSize > MAX_BUFFER_SIZE) {