@Test
public void testSetClientIdsIfSpecified_empty() throws Exception {

  String[] empty = {};
  annotationConfig.setClientIdsIfSpecified(empty);
  assertEquals(Collections.emptyList(), config.getClientIds());
  String[] clientIds = {"bleh", "more bleh"};
  annotationConfig.setClientIdsIfSpecified(clientIds);
  annotationConfig.setClientIdsIfSpecified(empty);
  assertEquals(Collections.emptyList(), config.getClientIds());
}