void return type in Spring `@ExceptionHandler` should work without a @ResponseStatus annotation

[hantsy]

I played more examples of exception handling except the ones mentioned in #4042 .

The following exception handling should work.

 @ExceptionHandler(Exception2.class)
 public void handleException2(Exception2 e, HttpServletResponse response) throws IOException {
        response.setHeader("Content-Type", "application/json");
        response.getWriter().write(e.getMessage());
        response.sendError(HttpServletResponse.SC_BAD_REQUEST);
 }

But in the startup stage, Quarkus will complain it should be used with a @ResponseStatus.

[hantsy]

I have added more exception handlers in my example codes, hope they work when building a real-world Spring application with Quarkus.

[geoand]

I'll fix this (hopefully) for 1.0.0.Final.

[geoand]

#5395 should take care of this