public void test_crawlerList_initialization() {
        assertNotNull(webFsIndexHelper.crawlerList);
        assertEquals(0, webFsIndexHelper.crawlerList.size());
    }

    @Test
    public void test_crawlerList_synchronization() {
        // Test that the crawler list is synchronized
        List<org.codelibs.fess.crawler.Crawler> crawlerList = webFsIndexHelper.crawlerList;