@Test
public void testSameACLGivesSameID() {

    List<ACL> testACL = createACL("myid");
    ReferenceCountedACLCache cache = new ReferenceCountedACLCache();
    Long aclId = cache.convertAcls(testACL);
    List<ACL> testACL2 = createACL("myid");
    assertEquals(aclId, cache.convertAcls(testACL2));
}