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

    /**
     * Creates a {@link Writer} to output to a stream with the specified encoding.
     *
     * @param os the stream (must not be {@literal null})
     * @param encoding the encoding (must not be {@literal null} or empty)
     * @return a {@link Writer} to output to the stream
     */

     * @param user The user to update.
     */
    void update(User user);

    /**
     * Deletes a user from the authentication chain.
     * @param user The user to delete.
     */
    void delete(User user);

    /**
     * Changes the password for the specified user.
     * @param username The username for which to change the password.
     * @param password The new password.

    private static final String KUROMOJI = "kuromoji";

    List<KuromojiItem> kuromojiItemList;

    /**
     * Constructs a new Kuromoji file.
     *
     * @param id The ID of the dictionary file.
     * @param path The path of the dictionary file.
     * @param timestamp The timestamp of the dictionary file.
     */
    public KuromojiFile(final String id, final String path, final Date timestamp) {
        super(id, path, timestamp);

            throw new ServletException("Failed to initialize CIFS context", ex);
        }
    }

    /**
     * Handles file download requests for SMB files.
     * @param req the HTTP servlet request
     * @param resp the HTTP servlet response
     * @param file the SMB file to download
     * @throws IOException if an I/O error occurs
     */

    /**
     * Retrieve all addresses of a host by it's name.
     *
     * @param host
     *            hostname to lookup all addresses for
     * @param type
     *            the hexcode of the name
     * @param scope
     *            the scope of the name
     * @param svr
     *            server to query
     *
     * @return the resolved addresses

     *
     * @param request The index request.
     * @return Future for the index response.
     */
    @Override
    public ActionFuture<IndexResponse> index(final IndexRequest request) {
        return client.index(request);
    }

    /**
     * Executes an index request asynchronously.
     *
     * @param request The index request.
     * @param listener The response listener.
     */

     * Constructor for SuggestIndexer.
     * @param client The OpenSearch client.
     * @param index The index name.
     * @param readingConverter The reading converter.
     * @param contentsReadingConverter The contents reading converter.
     * @param normalizer The normalizer.
     * @param analyzer The suggest analyzer.
     * @param settings The suggest settings.
     * @param threadPool The thread pool.
     */

        thumbnailQueueBhv.batchInsert(list);
    }

    /**
     * Generates thumbnails using the provided executor service.
     *
     * @param executorService the executor service for parallel processing
     * @param cleanup whether to run in cleanup mode
     * @return the number of tasks processed
     */
    public int generate(final ExecutorService executorService, final boolean cleanup) {

    }

    /**
     * Sets up the list condition for querying web authentications.
     *
     * @param cb The condition bean for the query
     * @param webAuthenticationPager The pager containing search criteria
     */
    protected void setupListCondition(final WebAuthenticationCB cb, final WebAuthPager webAuthenticationPager) {
        if (webAuthenticationPager.id != null) {

     *
     * @param id the unique identifier of the user
     * @return an OptionalEntity containing the user if found
     */
    public OptionalEntity<User> getUser(final String id) {
        return userBhv.selectByPK(id).map(u -> ComponentUtil.getAuthenticationManager().load(u));
    }

    /**
     * Retrieves a user by their username.
     *
     * @param username the username to search for