@Test
public void testFilter6()
                        throws XMLStreamException, FactoryConfigurationError, IOException {

    Filter result = parse( "v100/testfilter6.xml" );
    IdFilter idFilter = (IdFilter) result;
    Set<String> matchingIds = idFilter.getMatchingIds();
    assertTrue( matchingIds.contains( "TREESA_1M.1234" ) );
}