JEE5 Applications Development

While persisting (Transaction) the state of entity in custom JEE5 Application error appears: The class >>******<< is not a valid entity. The application is is based on EJB Java Dictionary Entity for backend, Stateless session Beans for middle tier along with JSF / ManagedBean / JSP front end. Code used to persist the entity is as follows:

private String Error1;

@PersistenceContext

  EntityManager em;

@Resource

private UserTransaction utx;

public String Save() throws Exception{

  try

  {

  utx.begin();

  Audits ad  = new Audits();

  ad.setDept("HR");

  ad.setRemarks("Remarks");

  ad.setPurpose("Purpose");

  ad.setAuditno(11);

  ad.setCostcenter(172);

  ad.setPhase(3);

  em.persist(ad);

  utx.commit();

  return "saved";

  }

  catch (Exception ex) {

  Error1=ex.getMessage();

  return "error";

  }