spring default exception handler

private static final Logger logger = LoggerFactory.getLogger(DefaultExceptionHandler.class);

    @ExceptionHandler(value = {EntityNotFoundException.class})
    public ResponseEntity<Object> employeeNotFoundExceptionHandler(
            HttpServletRequest request, EntityNotFoundException ex) {
        logger.warn(ex.toString());
        return new ResponseEntity<>("{\"message\": \"" + ex.getMessage() + "\"}",
                                    HttpStatus.NOT_FOUND);
    }