Message Title

In the two listed affects versions, a regression has been discovered which was not present in versions in the 4.3.x stream previous to these. The problem affects an entity domain with a three tier type hierarchy where the middle tier has a treated property and we are expecting to get back all of the root super-type in the from. Here is the test case to illustrate this:

public class Main
{
	@Entity
	public static abstract class Animal
	{
		@Id
		@GeneratedValue
		private Long id;
	}
	
	@Entity
	public static abstract class Dog extends Animal
	{
		private boolean fast;

		protected Dog(boolean fast)
		{
			this.fast = fast;
		}

		public final boolean isFast()
		{
			return fast;
		}
	}
	
	@Entity
	public static class Dachshund extends Dog
	{
		public Dachshund()
		{
			super(false);
		}
	}
	
	@Entity
	public static class Greyhound extends Dog
	{
		public Greyhound()
		{
			super(true);
		}
	}

	@Test
	public void treatAsSuperclassUsingCriteriaApi() {
		
		EntityManager entityManager = getEntityManager();
		EntityTransaction entityTransaction = entityManager.getTransaction();
		entityTransaction.begin();
		
		Greyhound greyhound = new Greyhound();
		Dachshund dachshund = new Dachshund();
		
		entityManager.persist(greyhound);
		entityManager.persist(dachshund);
		
		CriteriaBuilder cb = entityManager.getCriteriaBuilder();
		CriteriaQuery<Animal> criteriaQuery = cb.createQuery(Animal.class);
		Root<Animal> animal = criteriaQuery.from(Animal.class);
		Root<Dog> dog = cb.treat(animal, Dog.class);
		
		criteriaQuery.where(cb.isTrue(dog.<Boolean>get("fast")));
		
		List<Animal> results = entityManager.createQuery(
			criteriaQuery).getResultList();
		
		assertEquals(asList(greyhound), results);
		
		entityTransaction.commit();
	}	
}

This results in no records found due to the query generated containing an odd addition restriction (1=2):

select main_anima0_.id as id2_0_, main_anima0_.fast as fast3_0_, main_anima0_.DTYPE as DTYPE1_0_ from Main$Animal main_anima0_ where 1=2 and main_anima0_.fast=1

On previous versions (e.g. 4.3.4), this same code generates the following correct query: