Thanks for reply, but it doesn't work as expected (or I don't understand the JSR-220).

Suppose the relation listed in http://www.jboss.org/index.html?module=bb&op=viewtopic&t=64136 with optional=false. There is no cascade on Child.

This code fails with "deleted object would be re-saved by cascade (remove deleted object from associations)":

(on client)
familyDAO.remove(1L);

(server)
public void remove(Long id) {
 manager.remove(find(Child.class, id));
}

However this code works fine:

(on client)
familyDAO.remove(familyDAO.loadChild(1L));

(on server)
public Child loadChild(Long id) {
 return manager.find(Child.class, id);
}

public void remove(Object object) {
 manager.remove(object);
}

Where is the difference?

Thanks for any comment. Is there anything to read about cascading/associations of EJB3.0 besides the JSR-220?

Jan