ExceptionHandler.java

package com.ita.provapp.server.provappcommon;

import com.ita.provapp.server.provappcommon.json.ErrorMessage;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.context.request.WebRequest;
import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;

@Order(Ordered.HIGHEST_PRECEDENCE)
@ControllerAdvice
public class ExceptionHandler extends ResponseEntityExceptionHandler {
    @Override
    protected ResponseEntity<Object> handleMethodArgumentNotValid(MethodArgumentNotValidException ex,
                                                                  HttpHeaders headers,
                                                                  HttpStatus status, WebRequest request) {
        ErrorMessage error = new ErrorMessage(ex, headers, status, request);

        return new ResponseEntity<>(error, headers, status);
    }
}