* </p>
 *
 */
public class HtmlXpathExtractor extends AbstractXmlExtractor {
    /**
     * Regular expression pattern to match the charset attribute in the meta tag of HTML documents.
     * The pattern captures the charset value specified in the content attribute of the meta tag.
     * Example: &lt;meta http-equiv="Content-Type" content="text/html; charset=UTF-8"&gt;
     */

        String[] emptyArray = crawlerContext.removeSitemaps();
        assertNotNull(emptyArray);
        assertEquals(0, emptyArray.length);
    }

    /**
     * Test thread-local nature of sitemaps
     */
    public void test_sitemaps_threadLocal() throws Exception {
        final String[] thread1Sitemaps = new String[] { "http://thread1.com/sitemap.xml" };