* @param sessionId the session ID
     * @return the URL queue for the session
     */
    public synchronized Queue<UrlQueueImpl<Long>> getUrlQueueList(final String sessionId) {
        Queue<UrlQueueImpl<Long>> urlQueueList = urlQueueMap.get(sessionId);
        if (urlQueueList == null) {
            urlQueueList = new LinkedList<>();
            urlQueueMap.put(sessionId, urlQueueList);
        }

     *
     * @param parentUrl the parent URL to get encoding for
     * @param sessionId the session ID for the crawling session
     * @return the character encoding, or null if not found
     */
    default String getParentEncoding(final String parentUrl, final String sessionId) {
        final String key = sessionId + ":" + parentUrl;
        String enc = parentEncodingMap.get(key);
        if (enc != null) {

    }

    /**
     * Deletes all URL filters for the specified session.
     *
     * @param sessionId The session ID.
     */
    @Override
    public void delete(final String sessionId) {
        deleteBySessionId(sessionId);
        includeFilterCache.invalidate(sessionId);
        excludeFilterCache.invalidate(sessionId);
    }

    /**
     * Gets the list of include URL patterns for the specified session.

        sessionContexts.put(sessionId, context);

        log.debug("Initialized preauth integrity context for session {}", sessionId);
        return context;
    }

    /**
     * Updates the preauth integrity hash with a new message.
     *
     * @param sessionId the session identifier
     * @param messageData the message data to include in hash

        String result = crawlJob.execute();

        assertNotNull(crawlJob.sessionId);
        // Check format: yyyyMMddHHmmss
        assertEquals(14, crawlJob.sessionId.length());
        assertTrue(crawlJob.sessionId.matches("\\d{14}"));
        assertTrue(result.contains("Session Id: " + crawlJob.sessionId));
    }

    // Test with negative max crawler processes

     *
     * @param sessionId the ID of the session for which the URL filter is being added
     * @param url the URL to be included in the filter list
     */
    void addIncludeUrlFilter(String sessionId, String url);

    /**
     * Adds a list of URLs to the include filter for a given session.
     *
     * @param sessionId the ID of the session for which the URLs should be included

        // invalid cases
        url = "http://hoge/index.html;jsessionid";
        assertEquals("http://hoge/index.html;jsessionid", htmlTransformer.normalizeUrl(url));

        url = "http://hoge/index.html;jsessionid?a=1#HOGE";
        assertEquals("http://hoge/index.html;jsessionid?a=1", htmlTransformer.normalizeUrl(url));

        url = "http://hoge/aaa/../index.html";

     */
    public static class ChannelGroup {
        private final String sessionId;
        private final List<ChannelInfo> channels = new CopyOnWriteArrayList<>();
        private final AtomicInteger roundRobinIndex = new AtomicInteger(0);
        private volatile ChannelInfo primaryChannel;

        public ChannelGroup(String sessionId) {
            this.sessionId = sessionId;
        }

        public String getSessionId() {

      } else {
        // With TLSv1.2 it is really JDK specific.
        // assertEquals(sessionIds[0], sessionIds[1])
        // assertThat(directSessionIds).contains(sessionIds[0], sessionIds[1])
      }
      assertThat(sessionIds[0]).isNotEmpty()
    }
  }

  private fun enableTls() {
    client =
      client
        .newBuilder()
        .sslSocketFactory(

     */
    protected static class Options {
        /**
         * Session ID for filtering thumbnail generation.
         */
        @Option(name = "-s", aliases = "--sessionId", metaVar = "sessionId", usage = "Session ID")
        protected String sessionId;

        /**
         * Name identifier for the thumbnail generation task.
         */
        @Option(name = "-n", aliases = "--name", metaVar = "name", usage = "Name")