assertEquals(10, crawlerContext.getNumOfThread());

        crawlerContext.setNumOfThread(5);
        assertEquals(5, crawlerContext.getNumOfThread());

        crawlerContext.setNumOfThread(0);
        assertEquals(0, crawlerContext.getNumOfThread());

        crawlerContext.setNumOfThread(-1);
        assertEquals(-1, crawlerContext.getNumOfThread());

        crawlerThreadGroup = new ThreadGroup("Crawler-" + crawlerContext.sessionId);
        final Thread[] threads = new Thread[crawlerContext.getNumOfThread()];
        for (int i = 0; i < crawlerContext.getNumOfThread(); i++) {
            final CrawlerThread crawlerThread = crawlerContainer.getComponent("crawlerThread");
            crawlerThread.setCrawlerContext(crawlerContext);

    public Object getActiveThreadCountLock() {
        return activeThreadCountLock;
    }

    /**
     * Returns the number of threads.
     * @return The number of threads.
     */
    public int getNumOfThread() {
        return numOfThread;
    }

    /**
     * Sets the number of threads.
     * @param numOfThread The number of threads.
     */
    public void setNumOfThread(final int numOfThread) {