public WebApiFilter() {
        // Default constructor
    }

    /**
     * Initializes the web API filter.
     *
     * @param filterConfig The filter configuration
     * @throws ServletException If initialization fails
     */
    @Override
    public void init(final FilterConfig filterConfig) throws ServletException {
        // nothing
    }

    /**
     * Destroys the web API filter and cleans up resources.

  /** Table of cells. When non-null, size is a power of 2. */
  transient volatile Cell @Nullable [] cells;

  /**
   * Base value, used mainly when there is no contention, but also as a fallback during table
   * initialization races. Updated via CAS.
   */
  transient volatile long base;

  /** Spinlock (locked via CAS) used when resizing and/or creating Cells. */
  transient volatile int busy;

     * Sets up encoding mappings and default encoding from filter configuration.
     *
     * @param config the filter configuration containing initialization parameters
     * @throws ServletException if an error occurs during initialization
     */
    @Override
    public void init(final FilterConfig config) throws ServletException {
        servletContext = config.getServletContext();

    protected static final int CODE_NUMBER_LENGTH = 4;

    /** Suffix of the resource bundle name corresponding to the message code */
    protected static final String MESSAGES = "Messages";

    /** Flag indicating initialization */
    protected static volatile boolean initialized;

    /**
     * Returns the message.
     *
     * @param messageCode
     *            Message code
     * @param args
     *            Arguments

    /**
     * Do not instantiate.
     */
    protected ConstructorUtil() {
    }

    /**
     * Creates and initializes a new instance of the class declared by the specified constructor with the given initialization parameters.
     *
     * @param <T> the type of the object
     * @param constructor the constructor (must not be {@literal null})

     * and ending with ".txt".
     */
    public SynonymCreator() {
        super("synonym.*\\.txt");
    }

    /**
     * Registers this creator with the dictionary manager upon initialization.
     * This method is annotated with {@link PostConstruct} to be executed after
     * dependency injection is complete.
     */
    @PostConstruct
    public void register() {
        if (logger.isInfoEnabled()) {

     */
    public DefaultCorsHandler() {
        super();
    }

    /**
     * Registers this CORS handler with the factory for configured allowed origins.
     * This method is automatically called after bean initialization.
     */
    @PostConstruct
    public void register() {
        final CorsHandlerFactory factory = ComponentUtil.getCorsHandlerFactory();
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

   * up the necessary in-memory cache information.
   *
   * The initialization time may vary depending on the journal file size and the current actual
   * cache size. The application needs to be aware of calling this function during the
   * initialization phase and preferably in a background worker thread.
   *

    public void tearDown() throws Exception {
        if (originalFessConfig != null) {
            ComponentUtil.setFessConfig(originalFessConfig);
        }
        super.tearDown();
    }

    // Test creator initialization
    public void test_creatorInitialization() {
        assertNotNull(creator);
    }

    // Test with different mail configurations
    public void test_mailConfiguration() {

    }

    public void test_initialize_withValidParameters() {
        final CustomSize annotation = createBasicAnnotation();
        validator.initialize(annotation);
        // Test that initialization completes without exception
    }

    public void test_classStructure() {
        // Test that the class exists and has the expected structure