// no callbacks
Artist a1 = context.newObject(Artist.class);
assertNotNull(a1);
assertFalse(a1.isPostAdded());
registry.addListener(LifecycleEvent.POST_ADD, Artist.class, "postAddCallback");
Artist a2 = context.newObject(Artist.class);
assertNotNull(a2);
assertTrue(a2.isPostAdded());