*       identically to {@code Nullable}</a> as of version 0.9.9.
 *   <li><a href="https://developers.google.com/j2objc">J2ObjC</a>, maybe: It might no longer be
 *       necessary there, since we have stopped using the {@code @ParametersAreNonnullByDefault}
 *       annotations that {@code ParametricNullness} was counteracting.
 * </ul>
 *
 * <p>This annotation is a temporary hack. We will remove it after <a

 *       identically to {@code Nullable}</a> as of version 0.9.9.
 *   <li><a href="https://developers.google.com/j2objc">J2ObjC</a>, maybe: It might no longer be
 *       necessary there, since we have stopped using the {@code @ParametersAreNonnullByDefault}
 *       annotations that {@code ParametricNullness} was counteracting.
 * </ul>
 *
 * <p>This annotation is a temporary hack. We will remove it after <a

        } catch (final ContainerNotAvailableException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Crawler is stopped.", e);
            } else if (logger.isInfoEnabled()) {
                logger.info("Crawler is stopped.");
            }
            exitCode = Constants.EXIT_FAIL;
        } catch (final Throwable t) {
            logger.error("Crawler terminated unexpectedly.", t);

        }

        try {
            dataIndexHelper.crawl("test-session-force-stop");
            assertTrue("Should exit quickly when force stopped", true);
        } catch (Exception e) {
            assertTrue("Force stop should handle exceptions quickly", true);
        }
    }

    @Test
    public void test_crawl_with_short_intervals() {

            if (logger.isInfoEnabled()) {
                logger.info("Stopping process {}", sessionId);
            }
            if (destroyProcess(sessionId) == 0 && logger.isInfoEnabled()) {
                logger.info("Stopped process {}", sessionId);
            }
        }
    }

    /**
     * Starts a new process with the given session ID and command list.
     * Uses default buffer size and no output callback.
     *

                } finally {
                    if (systemHelper.isForceStop()) {
                        finishCrawling = true;
                        if (logger.isDebugEnabled()) {
                            logger.debug("Stopped indexUpdater.");
                        }
                    }
                }

                if (emptyListCount >= maxEmptyListCount) {
                    if (logger.isInfoEnabled()) {

        Executors.newSingleThreadScheduledExecutor(new ThreadFactoryImpl());
    // Add a listener to shut down the executor after the service is stopped. This ensures that the
    // JVM shutdown will not be prevented from exiting after this service has stopped or failed.
    // Technically this listener is added after start() was called so it is a little gross, but it

   * known as the XON code used for software flow control in serial communications. The main use is
   * restarting the transmission after the communication has been stopped by the XOFF control code.
   *
   * @since 8.0
   */
  public static final byte XON = 17; // aka DC1

  /**
   * Device Control 2. Characters for the control of ancillary devices associated with data

success.create_crawling_config_at_wizard = Created a crawling config {0}.
success.failure_url_delete_all = Deleted failure URLs.
success.delete_file = Deleted {0} file.
success.job_started = Started a job: {0}.
success.job_stopped = Stopped a job: {0}.
success.upload_synonym_file = Uploaded a synonym file.
success.upload_protwords_file = Uploaded a protwords file.
success.upload_stopwords_file = Uploaded a stopwords file.

success.create_crawling_config_at_wizard = Created a crawling config {0}.
success.failure_url_delete_all = Deleted failure URLs.
success.delete_file = Deleted {0} file.
success.job_started = Started a job: {0}.
success.job_stopped = Stopped a job: {0}.
success.upload_synonym_file = Uploaded a synonym file.
success.upload_protwords_file = Uploaded a protwords file.
success.upload_stopwords_file = Uploaded a stopwords file.