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

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

            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.
     *

type healStatusSummary string

// healStatusSummary constants
const (
	healNotStartedStatus healStatusSummary = "not started"
	healRunningStatus                      = "running"
	healStoppedStatus                      = "stopped"
	healFinishedStatus                     = "finished"
)

const (
	// a heal sequence with this many un-consumed heal result
	// items blocks until heal-status consumption resumes or is
	// aborted due to timeout.

        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

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.

     */
    public void stopProactiveHealthChecking() {
        if (healthCheckTask != null) {
            healthCheckTask.cancel(false);
            healthCheckTask = null;
            log.info("Stopped proactive health checking");
        }
    }

    /**
     * Perform proactive health check on all connections
     */
    private void performProactiveHealthCheck() {

   * 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

    /** A map of design JSP file names. */
    protected final Map<String, String> designJspFileNameMap = new LinkedHashMap<>();

    /** A flag to indicate if the system should be forcefully stopped. */
    protected final AtomicBoolean forceStop = new AtomicBoolean(false);

    /** A cache for language items. */
    protected LoadingCache<String, List<Map<String, String>>> langItemsCache;

    public static final String OK = "ok";

    /** Status constant representing failed operation. */
    public static final String FAIL = "fail";

    /** Status constant representing stopped state. */
    public static final String STOP = "stop";

    /** Constant representing automatic mode. */
    public static final String AUTO = "auto";

    /** Constant representing no value or empty state. */