*
     * @param protocols the protocols to use, in order of preference. If the list contains
     *     [Protocol.H2_PRIOR_KNOWLEDGE] then that must be the only protocol and HTTPS URLs will not
     *     be supported. Otherwise the list must contain [Protocol.HTTP_1_1]. The list must
     *     not contain null or [Protocol.HTTP_1_0].
     */
    fun protocols(protocols: List<Protocol>) =
      apply {

 *   <li>keys automatically wrapped in {@code WeakReference}
 *   <li>values automatically wrapped in {@code WeakReference} or {@code SoftReference}
 *   <li>notification of evicted (or otherwise removed) entries
 *   <li>accumulation of cache access statistics
 * </ul>
 *
 * <p>These features are all optional; caches can be created using all or none of them. By default,

    }

    /**
     * Validates if the given URL string is a valid URL.
     *
     * @param urlStr the URL string to validate
     * @return true if the URL is valid, false otherwise
     */
    protected boolean isValidUrl(final String urlStr) {
        if (StringUtil.isBlank(urlStr)) {
            return false;
        }
        final String value;
        if (urlStr.startsWith("://")) {

     */
    public void updateConfig() {
        isBind = false;
    }

    /**
     * Validates the LDAP connection.
     *
     * @return True if the LDAP connection is valid, otherwise false.
     */
    protected boolean validate() {
        if (!isBind) {
            if (fessConfig.getLdapAdminSecurityPrincipal() == null || fessConfig.getLdapAdminSecurityCredentials() == null) {

   *
   * <p><b>Note:</b> if mutability is not required, use {@link ImmutableSet#of()} instead. If {@code
   * E} is an {@link Enum} type, use {@link EnumSet#noneOf} instead. Otherwise, strongly consider
   * using a {@code LinkedHashSet} instead, at the cost of increased memory footprint, to get
   * deterministic iteration behavior.
   *

 * Iterator}. Except as noted, each method has a corresponding {@link Iterable}-based method in the
 * {@link Iterables} class.
 *
 * <p><i>Performance notes:</i> Unless otherwise noted, all of the iterators produced in this class
 * are <i>lazy</i>, which means that they only advance the backing iteration when absolutely
 * necessary.
 *
 * <p>See the Guava User Guide section on <a href=

        return buf.toString();
    }

    /**
     * Checks if a page file exists at the given path.
     *
     * @param path the page path to check
     * @return true if the page exists, false otherwise
     */
    private boolean existsPage(final String path) {
        final String realPath = LaServletContextUtil.getServletContext().getRealPath(path);
        final File file = new File(realPath);

    }
    throw new AssertionError();
  }

  /**
   * Returns a fresh {@link MapMakerInternalMap} with {@link MapMaker.Dummy} values but otherwise as
   * specified by the given {@code builder}. The returned {@link MapMakerInternalMap} will be
   * optimized to saved memory. Since {@link MapMaker.Dummy} is a singleton, we don't need to store

 * characters that need to be encoded is different for each component. For example, the path
 * component must escape all of its `?` characters, otherwise it could be interpreted as the
 * start of the URL's query. But within the query and fragment components, the `?` character
 * doesn't delimit anything and doesn't need to be escaped.
 *
 * ```java

        }
    }

    /**
     * Accepts the HTTP method.
     * @param request The HTTP request.
     * @param methods The accepted methods.
     * @return true if the method is accepted, false otherwise.
     */
    protected boolean acceptHttpMethod(final HttpServletRequest request, final String... methods) {
        final String method = request.getMethod();
        for (final String m : methods) {