queue.scheduleAndDecide(task, delayNanos, recurrence = true)
    }

    if (queue.futureTasks.isNotEmpty()) {
      readyQueues.add(queue)

      // If the task crashed, start another thread to run the next task.
      if (!completedNormally) {
        startAnotherThread()
      }
    }
  }

  /**

      } catch (e: IOException) {
        logger.fine("$this connection from ${raw.inetAddress} failed: $e")
      } catch (e: Exception) {
        logger.log(Level.SEVERE, "$this connection from ${raw.inetAddress} crashed", e)
      }
    }
  }

  internal inner class SocketHandler(
    private val connectionIndex: Int,
    private val raw: Socket,
    private val firstExchangePeek: MockResponse,
  ) {

    lookup for the local hostname, but we really just wanted the `Host` header.
 *  Fix: Don't crash with a `InaccessibleObjectException` when detecting the platform trust manager
    on Java 17+.
 *  Fix: Don't crash if a cookie's value is a lone double quote character.
 *  Fix: Don't crash when canceling an event source created by `EventSources.processResponse()`.

    whether an HTTP request permits a body.
 *  Fix: `HttpUrl` now uses the canonical form for IPv6 addresses.
 *  Fix: Use `HttpUrl` internally.
 *  Fix: Recover from Android 4.2.2 EBADF crashes.
 *  Fix: Don't crash with an `IllegalStateException` if an HTTP/2 or SPDY
    write fails, leaving the connection in an inconsistent state.
 *  Fix: Make sure the default user agent is ASCII.


## Version 2.4.0

 *  Fix: Don't crash in `HttpUrl.topPrivateDomain()` when the hostname is malformed.

 *  Fix: Don't attempt Brotli decompression if the response body is empty.


## Version 4.7.2

_2020-05-20_

 *  Fix: Don't crash inspecting whether the host platform is JVM or Android. With 4.7.0 and 4.7.1 we

            assertSame(cachedOrig, copySubj, "Clone should share the cached Subject reference");

            // Refreshing the original must not clear the clone's cached subject
            orig.refresh();
            // Clone should retain its cached Subject
            assertSame(copySubj, copy.getSubject(), "Clone should retain its cached Subject");
        } else {

     *
     * @param client the crawler client to use for accessing the URL
     * @param urlQueue the URL queue item containing the URL to check
     * @return true if the content has been updated and should be crawled, false otherwise
     */
    @Override
    protected boolean isContentUpdated(final CrawlerClient client, final UrlQueue<?> urlQueue) {
        if (ComponentUtil.getFessConfig().isIncrementalCrawling()) {

        try {
            // Try cached listing first
            if (directoryLeaseManager != null) {
                List<SmbFile> cached = directoryLeaseManager.getCachedDirectoryListing(
                    directory.getPath());
                if (cached != null) {
                    return cached.toArray(new SmbFile[0]);
                }
            }

 *   <li>Thread Creation: Creates a group of crawler threads to perform the actual crawling.</li>
 *   <li>Execution: Starts the crawler threads and waits for them to complete.</li>
 *   <li>Cleanup: Deletes the crawled data and clears the URL filter.</li>
 * </ol>
 *
 * <p>The crawler can be configured with various parameters, such as the number of threads,
 * the maximum depth of crawling, and URL filters.
 *
 * <p>Example usage:

        }

        /**
         * Gets the name of this cached file or directory
         * @return the file name
         */
        public String getName() {
            return name;
        }

        /**
         * Gets the size of this cached file in bytes
         * @return the file size
         */
        public long getSize() {