Handling Spring MVC exceptions using @ExceptionHandler annotation

@Controller
@RequestMapping(value="/example")
public class ExampleController {
@RequestMapping(value = "", method = RequestMethod.POST)
@ResponseBody
public void example() throws Exception{
System.out.println("in the example function");
throw new Exception("a new Exception");
}
@ExceptionHandler(Exception.class)
@ResponseBody
public Map<String,String> errorResponse(Exception ex, HttpServletResponse response){
Map<String,String> errorMap = new HashMap<String,String>();
errorMap.put("errorMessage",ex.getMessage());
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
ex.printStackTrace(pw);
String stackTrace = sw.toString();
errorMap.put("errorStackTrace", stackTrace);
response.setStatus(HttpStatus.INTERNAL_SERVER_ERROR.value());
return errorMap;
}
}