crawlerContext.intervalController.delay(IntervalController.PRE_PROCESSING);
                        }

                        final boolean contentUpdated = isContentUpdated(client, urlQueue);

                        if (contentUpdated) {
                            log(logHelper, LogType.GET_CONTENT, crawlerContext, urlQueue);
                            // access an 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()) {

            final SystemHelper systemHelper = ComponentUtil.getSystemHelper();