if (dataStore == null) {
                logger.error("DataStore({}) is not found.", dataConfig.getHandlerName());
            } else {
                try {
                    dataStore.store(dataConfig, indexUpdateCallback, initParamMap);
                } catch (final Throwable e) {
                    logger.error("Failed to process a data crawling: {}", dataConfig.getName(), e);

            if (logger.isDebugEnabled()) {
                logger.error("IndexUpdater is terminated.", e);
            } else if (logger.isInfoEnabled()) {
                logger.info("IndexUpdater is terminated.");
            }
            forceStop();
        } catch (final Throwable t) {
            if (ComponentUtil.available()) {
                logger.error("IndexUpdater is terminated.", t);

    }

    protected void handleFileUploadException(final FileUploadException e) throws ServletException {
        // suppress logging because it can be caught by logging filter
        //log.error("Failed to parse multipart request", e);
        throw new ServletException("Failed to upload the file.", e);
    }

    // ===================================================================================

            crawlingInfoHelper.putToInfoMap(Constants.CRAWLER_STATUS, errors.isEmpty() ? Constants.T.toString() : Constants.F.toString());
            if (!errors.isEmpty()) {
                crawlingInfoHelper.putToInfoMap(Constants.CRAWLER_ERRORS,
                        errors.stream().map(s -> s.replace(" ", StringUtil.EMPTY)).collect(Collectors.joining(" ")));
            }

    protected static final String STATES = "aadStates";

    protected static final String STATE = "state";

    protected static final String ERROR = "error";

    protected static final String ERROR_DESCRIPTION = "error_description";

    protected static final String ERROR_URI = "error_uri";

    protected static final String ID_TOKEN = "id_token";

    protected static final String CODE = "code";

    public static final String DEFAULT_FROM_EMAIL = "Administrator <root@localhost>";

    // info map

    public static final String CRAWLER_STATUS = "CrawlerStatus";

    public static final String CRAWLER_ERRORS = "CrawlerErrors";

    public static final String CRAWLER_START_TIME = "CrawlerStartTime";

    public static final String CRAWLER_END_TIME = "CrawlerEndTime";

                        final List<String> errors = auth.getErrors();
                        if (!errors.isEmpty()) {
                            logger.warn("{}", errors.stream().collect(Collectors.joining(", ")));
                            if (auth.isDebugActive() && StringUtil.isNotBlank(auth.getLastErrorReason())) {
                                logger.warn("Authentication Failure: {} - Reason: {}", errors.stream().collect(Collectors.joining(", ")),

    /** The path of the HTML: /error/badRequest.jsp */
    HtmlNext path_Error_BadRequestJsp = new HtmlNext("/error/badRequest.jsp");

    /** The path of the HTML: /error/error.jsp */
    HtmlNext path_Error_ErrorJsp = new HtmlNext("/error/error.jsp");

    /** The path of the HTML: /error/notFound.jsp */
    HtmlNext path_Error_NotFoundJsp = new HtmlNext("/error/notFound.jsp");

                logger.info("SuggestCreator is stopped.");
            }
            exitCode = Constants.EXIT_FAIL;
        } catch (final Throwable t) {
            logger.error("Suggest creator does not work correctly.", t);
            exitCode = Constants.EXIT_FAIL;
        } finally {
            if (systemMonitorTask != null) {
                systemMonitorTask.cancel();
            }

            }

            char ch = s.charAt(pos);
            pos++;
            if (ch == '\\') {
                sb.append(ch);
                if (pos >= end) {
                    break; // ERROR, or let it go?
                }
                ch = s.charAt(pos);
                pos++;
            }

            sb.append(ch);
        }

        if (sb.length() > 0) {