"CrawlerClient is null for URL: " + url + ". Unable to access the document without a crawler client.");
        }

        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final long startTime = systemHelper.getCurrentTimeAsLong();
        try (final ResponseData responseData = client.execute(RequestDataBuilder.newRequestData().get().url(url).build())) {

        if (docList.isEmpty()) {
            return;
        }
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final long execTime = systemHelper.getCurrentTimeAsLong();
        if (logger.isDebugEnabled()) {
            logger.debug("Sending {} documents to a server.", docList.size());
        }
        try {

    protected boolean isContentUpdated(final CrawlerClient client, final UrlQueue<?> urlQueue) {
        if (ComponentUtil.getFessConfig().isIncrementalCrawling()) {

            final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
            final long startTime = systemHelper.getCurrentTimeAsLong();

            final FessConfig fessConfig = ComponentUtil.getFessConfig();

     * @return an optional WebConfig entity with updated metadata
     */
    public static OptionalEntity<WebConfig> getWebConfig(final CreateForm form) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final String username = systemHelper.getUsername();
        final long currentTime = systemHelper.getCurrentTimeAsLong();
        return getEntity(form, username, currentTime).map(entity -> {

        tempDir = Files.createTempDirectory("execjob_test").toFile();

        // Store original helpers
        originalSystemHelper = ComponentUtil.hasComponent("systemHelper") ? ComponentUtil.getSystemHelper() : null;
        originalProcessHelper = ComponentUtil.hasComponent("processHelper") ? ComponentUtil.getProcessHelper() : null;

    }

    default String getUserAgentName() {
        return getSystemProperty(Constants.CRAWLING_USER_AGENT_PROPERTY, Constants.CRAWLING_USER_AGENT_PREFIX
                + ComponentUtil.getSystemHelper().getProductVersion() + Constants.CRAWLING_USER_AGENT_SUFFIX);
    }

    default void setLtrModelName(final String value) {
        setSystemProperty(Constants.LTR_MODEL_NAME_PROPERTY, value);
    }

        if (stateMap == null) {
            stateMap = new HashMap<>();
            session.setAttribute(STATES, stateMap);
        }
        final StateData stateData = new StateData(nonce, ComponentUtil.getSystemHelper().getCurrentTimeAsLong());
        if (logger.isDebugEnabled()) {
            logger.debug("Storing state in session: {}", stateData);
        }
        stateMap.put(state, stateData);
    }

    /**

    }

    /**
     * Represents the base API response structure.
     */
    public static class ApiResponse {
        /** The version of the product. */
        protected String version = ComponentUtil.getSystemHelper().getProductVersion();
        /** The status code of the response. */
        protected int status;

        /**
         * Default constructor for ApiResponse.
         */
        public ApiResponse() {

     * @return the user ID, or null if the user is a guest
     */
    protected String getUserId(final HttpServletRequest request) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final String username = systemHelper.getUsername();
        if (!org.codelibs.fess.Constants.GUEST_USER.equals(username)) {
            return username;
        }

     */
    protected UserInfo storeUserInfo(final String userCode) {
        final UserInfoBhv userInfoBhv = ComponentUtil.getComponent(UserInfoBhv.class);

        final LocalDateTime now = ComponentUtil.getSystemHelper().getCurrentTimeAsLocalDateTime();
        final UserInfo userInfo = userInfoBhv.selectByPK(userCode).map(e -> {
            e.setUpdatedAt(now);
            return e;
        }).orElseGet(() -> {