}

  private void drainQueue() throws Exception {
    for (HttpUrl url; (url = queue.take()) != null; ) {
      if (!fetchedUrls.add(url)) {
        continue;
      }

      Thread currentThread = Thread.currentThread();
      String originalName = currentThread.getName();
      currentThread.setName("Crawler " + url);
      try {
        fetch(url);
      } catch (IOException e) {

 * invoke methods, they invoke methods on the {@code ForwardingBlockingDeque}.
 *
 * <p>The {@code standard} methods are not guaranteed to be thread-safe, even when all of the
 * methods that they depend on are thread-safe.
 *
 * @author Emily Soldal
 * @since 14.0
 * @deprecated This class has moved to {@code com.google.common.util.concurrent}. Please use {@link

  }

  public void testLegacyAsyncDispatcher() {
    dispatcher = Dispatcher.legacyAsync();

    CyclicBarrier barrier = new CyclicBarrier(2);
    CountDownLatch latch = new CountDownLatch(2);

    new Thread(
            new Runnable() {
              @Override
              public void run() {
                try {
                  barrier.await();
                } catch (Exception e) {

                org.codelibs.core.timer.TimeoutTask accessTimeoutTask = null;
                if (accessTimeout != null) {
                    accessTimeoutTarget = new org.codelibs.fess.crawler.client.AccessTimeoutTarget(Thread.currentThread());
                    accessTimeoutTask = org.codelibs.core.timer.TimeoutManager.getInstance()
                            .addTimeoutTarget(accessTimeoutTarget, accessTimeout, false);
                }

                    throw new IllegalArgumentException("Invalid threads core multiplier value: '" + threadConfiguration
                            + "'. Value must be positive.");
                }

                int procs = Runtime.getRuntime().availableProcessors();
                int threads = (int) (coreMultiplier * procs);
                return threads == 0 ? 1 : threads;
            } else {

                    break;
                }
                Thread.sleep(50);
            }
            assertEquals(CrawlerStatus.RUNNING, crawler1.crawlerContext.getStatus());
            for (int i = 0; i < 100; i++) {
                if (crawler2.crawlerContext.getStatus() == CrawlerStatus.RUNNING) {
                    break;
                }
                Thread.sleep(50);
            }

            try {
                QueryLog queryLog = queryLogReader.read();
                while (queryLog != null) {
                    if (Thread.currentThread().isInterrupted()) {
                        break;
                    }
                    queryLogs.add(queryLog);
                    queryLog = queryLogReader.read();

errors.invalid_header_for_request_file=Ongeldige headerregel: {0}
errors.could_not_delete_logged_in_user=Kan ingelogde gebruiker niet verwijderen.
errors.unauthorized_request=Ongeautoriseerd verzoek.
errors.failed_to_print_thread_dump=Kan thread-dump niet afdrukken.
errors.file_is_not_supported={0} wordt niet ondersteund.
errors.plugin_file_is_not_found={0} niet gevonden.
errors.failed_to_install_plugin=Kan {0} niet installeren.

        this.cleanupInterval = cleanupInterval;

        // Start cleanup scheduler
        this.cleanupScheduler = Executors.newSingleThreadScheduledExecutor(r -> {
            Thread t = new Thread(r, "AuthRateLimiter-Cleanup");
            t.setDaemon(true);
            return t;
        });

     * -2: use system default, -1: never expire, 0 or positive: expire after specified days.
     */
    protected int documentExpires = -2;

    /**
     * Hot thread monitoring interval in seconds.
     * -1: disabled, positive value: enable hot thread monitoring with specified interval.
     * Used for performance analysis and debugging of the crawler process.
     */
    protected int hotThreadInterval = -1;

    /**