code is like this: @Controller public class TestController { @RequestMapping(value = /testerror, method =

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Asked: May 21, 20262026-05-21T21:13:44+00:00 2026-05-21T21:13:44+00:00

code is like this: @Controller public class TestController { @RequestMapping(value = /testerror, method =

0

code is like this:

   @Controller
    public class TestController {

        @RequestMapping(value = "/testerror", method = RequestMethod.GET)
        public @ResponseBody ErrorTO testerror(HttpServletRequest request,HttpServletResponse response) {
           throw new ABCException("serious error!");
        }


        @ExceptionHandler(ABCException.class)
        public  @ResponseBody ErrorTO handleException(ABCException ex,
                HttpServletRequest request, HttpServletResponse response) {
            response.setStatus(response.SC_BAD_REQUEST);
            return new ErrorTO(ex.getMessage());
        }


     @RequestMapping(value = "/test", method = RequestMethod.GET)
    public @ResponseBody ErrorTO test(HttpServletRequest request, 
                                      HttpServletResponse response) {
        ErrorTO error = new ErrorTO();
        error.setCode(-12345);
        error.setMessage("this is a test error.");
        return error;
    }

}

when I tried curl -H “Accept:application/json” -v “http://localhost.com:8080/testerror”
I got this error:
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerExceptionResolver – Could not find HttpMessageConverter that supports return type [class com.kibboko.poprocks.appservices.dtos.ErrorTO] and [application/json]

but if I try curl -H “Accept:application/json” -v “http://localhost.com:8080/test”, worked and returned json response. “application/xml” worked too.

Is there anything special about exception handler I need to take care of so it can work with json or xml? Thanks!