protected User createAuthenticatedUser() {
    if (authenticatedUser == null) {
      User user = new User(4);
      user.setUsername("thies");
      user.setPassword("secret");

      Set<UserRole> userRoles = new HashSet<UserRole>();
      userRoles.addAll(UserRole.ROLES.values());

      user.setUserRoles(userRoles);

      authenticatedUser = user;
    }

    return authenticatedUser;
  }