I'm trying to (eagerly) load user object (with all its internal collections & paramerts), modify it, save it to DB, and then refresh the object - so I can return an updated user object to the client.
The problem: in the code below both load() & refresh() return user object with all user's internal data as null (See the code below)

Any ideas why the user object is not loaded?

SessionFactory sf = ((HibernateEntityManagerFactory) HibernateUtil.getProfoundEMFactory()).getSessionFactory();
Session session = sf.getCurrentSession();
session.beginTransaction();
User user = (User) session.load(User.class, user_id);
if( user != null )
{
// modify user...
session.merge(user);
session.flush();
session.refresh(user);
session.getTransaction().commit();
}

Comment: all my internal collections are setup to eagerly load.
Context for the problem: By now, I have being working with EntityManagerFactory (loaded with name query select, and use merge() to save); However, now I need to use the refresh() method which is available only in SessionFactory to do the practice described above.