[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3069) ObjectNotFoundException when proxy exists for super class of non existant joined subclass

[dan oxlade (JIRA)]

ObjectNotFoundException when proxy exists for super class of non existant joined subclass
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                 Key: HHH-3069
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3069
             Project: Hibernate3
          Issue Type: Bug
          Components: core
    Affects Versions: 3.2.5
            Reporter: dan oxlade


A proxy of an entity which has a joined subclass is loaded into the session.

If the proxy resolves to null, i.e the id of the proxy has no matching row in the database then future queries (in the same hibernate session) for any of the joined subclass entities will fail with ObjectNotFoundExceptions from the returnNarrowedProxy method of the DefaultLoadEventListener.

the following test method in JoinedSubclassTest demonstrates the failing test:

	
	public void testProxyLoadedWhichDoesNotExist() throws Exception {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		
		Long id = Long.valueOf(0L);
		Employee employee = (Employee) s.get(Employee.class,id);
		assertNull(employee);
		
		Person proxy = (Person) s.load(Person.class,id);
		assertNotNull(proxy);
		
		employee = (Employee) s.get(Employee.class,id);
		assertNull(employee);
		
		t.commit();
		s.close();
	}

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