josn 변환 안됩니다.

ResponseEntity로 보냈는데 postman은 josn으로 반환되지 않고 postman에는 html으로 오류가 뜹니다

 //Json반환
    @RequestMapping(value = "/error-page/500", produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<Map<String, Object>> errorPage500Api(
            HttpServletRequest request, HttpServletResponse response) {

        log.info("API errorPage 500");

        Map<String, Object> result = new HashMap<>();
        Exception ex = (Exception) request.getAttribute(ERROR_EXCEPTION);
        result.put("status", request.getAttribute(ERROR_STATUS_CODE));
        result.put("message", ex.getMessage());

        Integer statusCode = (Integer) request.getAttribute(RequestDispatcher.ERROR_STATUS_CODE);
        return new ResponseEntity<>(result, HttpStatus.valueOf(statusCode));
    }