Why can't I catch EJB exceptions? - exception

Question

I can't seem to catch exceptions such as NoResultException or EJBException in my java ee 6 project. Is there something I am doing wrong? I have caught exceptions outside the EJB container but this is my first time using EJB. Thanks.
#Stateless
public class UserEJB {
#PersistenceContext
EntityManager em;
public String getUserName(User user) {
return user.getName();
}
public User fetchUserByEmail(String email) {
User user = em.createNamedQuery("User.findByEmail", User.class).setParameter("email", email).getSingleResult();
return user;
}
public User fetchUserById(int id) {
return em.createNamedQuery("User.findByUserId", User.class).setParameter("userId", id).getSingleResult();
}
public List<User> fetchAllUsers() {
return em.createNamedQuery("User.findAll", User.class).getResultList();
}
}
#Named(value = "userController")
#RequestScoped
public class UserController {
private User user = new User();
#EJB
UserEJB userEJB;
#Inject
SecurityController securityController;
public UserController() {
}
public void login(ActionEvent event) {
try {
User userLogin = userEJB.fetchUserByEmail(user.getEmail());
} catch (Exception e) {
}
if (userLogin.getPassword().equals(user.getPassword())) {
securityController.setIsLoggedIn(true);
securityController.setIsAdmin(true);
securityController.setUser(user);
}
}
/**
* #return the user
*/
public User getUser() {
return user;
}
/**
* #param user the user to set
*/
public void setUser(User user) {
this.user = user;
}

Answer 1

What if you put two System.out.printlns in the code? One in the exception handler and one right before the if statement. What do you get?
Looking at the code I would say you would be able to catch the exception, which should be a JPA exception wrapped in an EJB one.