//q.setUnique(true);
pc = (MappedByMapPC) q.getSingleResult();
assertEquals(3, pc.getHelpers().size());
assertEquals(h2, pc.getHelpers().get("h2"));
q = pm.createNativeQuery("helpers.containsValue (:h2)",pc.getClass());
//FIXME jthomas
//q.setUnique(true);
pc = (MappedByMapPC) q.getSingleResult();
assertEquals(3, pc.getHelpers().size());
assertEquals(h2, pc.getHelpers().get("h2"));