} catch (final Throwable t) {
            logger.warn("An exception occurs on the crawl task.", t);
            return Constants.EXIT_FAIL;
        } finally {
            pathMappingHelper.removePathMappingList(options.sessionId);
            crawlingInfoHelper.putToInfoMap(Constants.CRAWLER_STATUS, errors.isEmpty() ? Constants.T.toString() : Constants.F.toString());
            if (!errors.isEmpty()) {