Broker broker = _factory.newBroker();
Query q = broker.newQuery(JPQLParser.LANG_JPQL, "select a.o FROM " +
SelfReferencingCacheTestObject.class.getSimpleName() +
" a where a.o IS NOT NULL");
List l = (List) q.execute();
assertEquals(SelfReferencingCacheTestObject.class,
l.get(0).getClass());
assertEquals("bar",
((SelfReferencingCacheTestObject) l.get(0)).getStr());
CacheTestHelper.iterate(l);