org.springframework.security.core.userdetails.User cannot be cast to MyUser

Question

This is a spring security question.

I want to be able to retrieve my custom User object object using

SecurityContextHolder.getContext().getAuthentic         


        

Answer 1

You've overriden wrong method, additionally override createUserDetails which creates final User object from these fetched via loadUsersByUsername:

@Override
protected UserDetails createUserDetails(final String username,
    final UserDetails userFromUserQuery,
    final List combinedAuthorities) {
  String returnUsername = userFromUserQuery.getUsername();

  if (!isUsernameBasedPrimaryKey()) {
    returnUsername = username;
  }

  final MyUser userToReturn = new MyUser(returnUsername,
      userFromUserQuery.getPassword(), userFromUserQuery.isEnabled(), true,
      true, true, combinedAuthorities);
  userToReturn.setId(((MyUser) userFromUserQuery).getId());
  return userToReturn;
}

userToReturn.setId(((MyUser) userFromUserQuery).getId()); will work if you used your code, or you can remove loadUsersByUsername and fetch id right inside createUserDetails which doc's says:

Can be overridden to customize the creation of the final UserDetailsObject which is returned by the loadUserByUsername method.