crawler2.getCrawlerContext().setNumOfThread(numOfThread);

            final String sessionId1 = crawler1.execute();
            final String sessionId2 = crawler2.execute();

            assertNotSame(sessionId1, sessionId2);
            assertNotSame(crawler1.crawlerContext, crawler2.crawlerContext);

            for (int i = 0; i < 10; i++) {

        if (StringUtil.isBlank(options.sessionId)) {
            // use a default session id
            final SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
            options.sessionId = sdf.format(new Date());
        } else {
            options.sessionId = options.sessionId.replace('-', '_');
        }

        final JobProcess jobProcess = runningProcessMap.remove(sessionId);
        return destroyProcess(sessionId, jobProcess);
    }

    public boolean isProcessRunning() {
        return !runningProcessMap.isEmpty();
    }

    public boolean isProcessRunning(final String sessionId) {
        final JobProcess jobProcess = runningProcessMap.get(sessionId);

    public void setId(final String id) {
        this.id = id;
    }

    public String getSessionId() {
        return sessionId;
    }

    public void setSessionId(final String sessionId) {
        this.sessionId = sessionId;
    }

    public String getFilterType() {
        return filterType;
    }

    public void setFilterType(final String filterType) {
        this.filterType = filterType;
    }

        final Object sessionId = sessionIdProp.getValue(target);
        return sessionId == null ? null : sessionId.toString();
    }

    private String getSessionId(final Object target) {
        final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(target.getClass());
        final PropertyDesc sessionIdProp = beanDesc.getPropertyDesc(SESSION_ID);
        final Object sessionId = sessionIdProp.getValue(target);

        }
    }

    @Override
    public void delete(final String sessionId) {
        deleteBySessionId(sessionId);
    }

    @Override
    public void offerAll(final String sessionId, final List<OpenSearchUrlQueue> urlQueueList) {
        if (logger.isDebugEnabled()) {
            logger.debug("Offering URL: Session ID: {}, UrlQueue: {}", sessionId, urlQueueList);
        }

        urlQueue.setSessionId("sessionId");
        urlQueue.setUrl("http://www.example.com/");

        urlQueueService.insert(urlQueue);
        assertTrue(fesenClient.prepareSearch("fess_crawler.queue").setQuery(QueryBuilders.termQuery("sessionId", "sessionId")).setSize(0)
                .execute().actionGet().getHits().getTotalHits().value > 0);

        urlQueueService.delete("sessionId");

        excludeFilterCache.invalidate(sessionId);
    }

    @Override
    public List<Pattern> getIncludeUrlPatternList(final String sessionId) {
        try {
            return includeFilterCache.get(sessionId);
        } catch (final ExecutionException e) {
            throw new CrawlerSystemException(e);
        }
    }

    @Override

        }
        try {
            urlQueueService.delete(sessionId);
        } catch (final Exception e) {
            logger.warn("Failed to delete url queues: {}", sessionId, e);
        }
        try {
            dataService.delete(sessionId);
        } catch (final Exception e) {
            logger.warn("Failed to delete data: {}", sessionId, e);
        }
    }

    @Override

        if (sessionId == null) { // create session id
            final SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
            sessionId = sdf.format(new Date());
        }
        resultBuf.append("Session Id: ").append(sessionId).append("\n");
        resultBuf.append("Web  Config Id:");
        if (webConfigIds == null) {