@PersistenceContext(unitName="MY_PU")
EntityManager entityManager;

@Inject
UserTransaction ut;

public void action() throws NotSupportedException, SystemException{
        ut.begin();
        Person p = new Person();
         
        p.setIdPerson(1L);
        //Will force a errors because this field has only 5 characters on database
        p.setName("abcdef");
         
        try{
                entityManager.persist(p);
                entityManager.flush();
        }catch (Exception e) {
                System.out.println("Here a persistence exception, but i need to continue my transaction");
                e.printStackTrace();
        }
         
        p.setName("abc");
         
        try{
                entityManager.persist(p);
                //This flush will throw a exception accusing no transaction active!
                entityManager.flush();
                ut.commit();
        }catch (Exception e) {
                e.printStackTrace();
                System.out.println("Another error, because my transaction is no more active");
                System.out.println("Status:" + ut.getStatus());
        }
}