Hello, I have a class called User which has 2 properties : login/password. I am trying to authenticate a user in my application using hibernate criteria but my request doesn't work.

[EDIT] The returned value is NULL. I have two users in my database for testing.

Here is my code :

@Override
public User authenticate(String login, String password)
    throws NullPointerException {
    Session session = this.getSession();
    User user = (User) session
        .createCriteria(User.class)
        .add(
                        Restrictions.and(
                            Property.forName("login").eq(login),
                            Property.forName("password").eq(password)
                    )).uniqueResult();

    if (user == null){
        throw new NullPointerException("User not found");
    }

    return user;
}

Can someone tells me what is wrong with my code?

Happy new Year 2011 !!