return con.executeQuery(user, xpath);
return con.executeQuery(user, xpath, namespaces);
	public int executeQuery(User user, String xpath)		throws EXistException, PermissionDeniedException {		RpcConnection con = pool.get();		try {			return con.executeQuery(user, xpath);		} catch (Exception e) {			handleException(e);			return -1;		} finally {			pool.release(con);		}	}