List<?> objects = context.performQuery(q);
assertEquals(1, objects.size());
CayenneDataObject fk1 = (CayenneDataObject) objects.get(0);
Object toOnePrefetch = fk1.readNestedProperty("toCompoundPk");
assertNotNull(toOnePrefetch);
assertTrue(
"Expected DataObject, got: " + toOnePrefetch.getClass().getName(),
toOnePrefetch instanceof DataObject);