@SuppressWarnings("unchecked")
@Test
public void testExecute()
{
final EntityManager entityManager = context.mock(EntityManager.class);
final PersistenceListRequest req = context.mock(PersistenceListRequest.class);
final Session session = context.mock(Session.class);
final EntityTransaction transaction = context.mock(EntityTransaction.class);
final List<Activity> activities = new LinkedList<Activity>();