*     argument. These are matched by position - the first {@code %s} gets {@code
   *     errorMessageArgs[0]}, etc. Unmatched arguments will be appended to the formatted message in
   *     square braces. Unmatched placeholders will be left as-is.
   * @param errorMessageArgs the arguments to be substituted into the message template. Arguments

        try (OutputStream out = file.openOutputStream(false)) {
            out.write(initial.getBytes("UTF-8"));
        }

        // Append additional content
        String append = "Appended content\n";
        try (OutputStream out = file.openOutputStream(true)) { // true = append mode
            out.write(append.getBytes("UTF-8"));
        }

        // Verify combined content

     * Adds search highlighting for HTML and PDF documents.
     *
     * @param document the document data map
     * @param url the base URL
     * @return the URL with appended query parameters
     */
    protected String appendQueryParameter(final Map<String, Object> document, final String url) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();