@Test
public void testIssue439() {

  TopicMapIF tm = new InMemoryTopicMapStore().getTopicMap();
  TopicIF topic = tm.getBuilder().makeTopic();
  TopicNameIF name1 = tm.getBuilder().makeTopicName(topic, topic, "value1");
  TopicNameIF name2 = tm.getBuilder().makeTopicName(topic, topic, "value2");
  Assert.assertEquals(-1, new TopicNameComparator(Collections.EMPTY_LIST).compare(name1, name2));
}