System.out.println("stateless checked"); return i;
em.remove(e);
AllEntity e = new AllEntity(); e.val = "x"; em.persist(e); return e;
SomeEntity e = new SomeEntity(); e.val = "x"; em.persist(e); return e;
StarEntity e = new StarEntity(); e.val = "x"; em.persist(e); return e;
AllEntity e = em.find(AllEntity.class, key); return e;
SomeEntity e = em.find(SomeEntity.class, key); return e;
StarEntity e = em.find(StarEntity.class, key); return e;
System.out.println("stateless unchecked"); return i;
em.merge(e);