Hi all, I have a problem on my
ejb application...
On runing the project, everytime i try to do a delete of a specifical record, i have this exception:
javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [ejb.Profili#26428513]
I found that the problem is dued to this part of code:
HttpSession session = request.getSession(true);
try{
ProfiliFacadeLocal profiliFacade = (ProfiliFacadeLocal) lookupProfiliFacade();
List profili = profiliFacade.findAll();
String key =(String)session.getAttribute("idProf");
try{
for (Iterator itProf = profili.iterator(); itProf.hasNext(); ) {
Profili elem = (Profili) itProf.next();
if(elem.getIdprof().equals(request.getParameter("idProf"))){
out.println("<h2>Rimozione esame : " +elem.getIdcorso()+ " riuscita</h2");
profiliFacade.destroy(elem); }
}
where the profiliFacade.destroy(profili) function is so defined:
public void destroy(Profili profili) {
em.merge(profili);
em.remove(profili);
}
//with em as "EntityManager em"
All the entitymanager operation like merge, create and so one give me no problem, it works, i have the problem only with the
EntityManager.remove(object)
function:
does someone know where is the bug and what i have to do?
tkx
