pathMappingMap.put(sessionId, pathMappingList);
            } else {
                removePathMappingList(sessionId);
            }
        }
    }

    /**
     * Removes the path mapping list for a session.
     *
     * @param sessionId the session ID
     */
    public void removePathMappingList(final String sessionId) {
        pathMappingMap.remove(sessionId);
    }

    /**

        } catch (final Throwable t) {
            logger.warn("Crawl task failed with an exception.", 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()) {