How do I customize default error message from spring @Valid validation?

Question

DTO:

public class User {

    @NotNull
    private String name;

    @NotNull
    private String password;

    //..
}

Controller:

Answer 1

{
  "message": "string",
  "errors": [
    {
      "field": "string",
      "message": "string",
      "error_code": "string"
    }
  ],
  "resource": "string",
  "description": "string"
}