*/
private Conf getConf () throws IllegalAccessException, NoSuchFieldException {
Field confLastLoadedField = UrlRewriteFilter.class.getDeclaredField( "confLastLoaded" );
confLastLoadedField.setAccessible( true );
Conf confLastLoaded = (Conf) confLastLoadedField.get( urlRewriteFilter );
confLastLoadedField.setAccessible( false );
return confLastLoaded;
}