public int executeQuery(User user, String xpath) throws Exception {
public int executeQuery(User user, String xpath, Hashtable namespaces) throws Exception {
	public int executeQuery(User user, String xpath) throws Exception {		long startTime = System.currentTimeMillis();		LOG.debug("query: " + xpath);		Value resultValue = doQuery(user, xpath, null, null);		QueryResult qr = new QueryResult(resultValue, (System.currentTimeMillis() - startTime));		connectionPool.resultSets.put(qr.hashCode(), qr);		return qr.hashCode();	}