final DummyConceptEntity keyInfoBackNull = pfDao.get(DummyConceptEntity.class, PfConceptKey.getNullKey());
assertNull(keyInfoBackNull);
final DummyConceptEntity keyInfoBack1 = pfDao.getConcept(DummyConceptEntity.class, aKey0);
final DummyConceptEntity keyInfoBackNull = pfDao.get(DummyConceptEntity.class, PfConceptKey.getNullKey());
assertNull(keyInfoBackNull);
final DummyConceptEntity keyInfoBack1 = pfDao.getConcept(DummyConceptEntity.class, aKey0);