@ExceptionHandler(MethodArgumentNotValidException.class)
public Map<String, String> handleValidationExceptions(final MethodArgumentNotValidException ex) {
final Map<String, String> errors = new HashMap<>();
@ExceptionHandler(MethodArgumentNotValidException.class)
public Map<String, String> handleValidationExceptions(final MethodArgumentNotValidException ex) {
final Map<String, String> errors = new HashMap<>();