How to pass error message in http request?

Question

Spring

Hey!
I have an exception I created:

@ResponseStatus(HttpStatus.CONFLICT)
public class UserAlreadyExistException extends RuntimeException{

    public UserAlreadyExistException(String message) {
        super(message);
    }
}

But when I throw it inside the request:

if (userService.findByEmail(email) != null) {
    throw new UserAlreadyExistException("User with this email already exist!");
}

The message doesn't appear to be saved, because it's null inside response:

MockHttpServletResponse:
           Status = 409
    Error message = null

Tell me how to fix it? Or, how can I better pass the exception along with the message? This is important because The response of the client depends on the content of the message.

Answer 1

Vanya Petilo use
https : //docs.spring.io/spring/docs/5.0.1.RELEASE/j...