Combining problem with Rest ,

[Jyrg]

I have started to study new functionallity in Spring 3.1 and created an small example, but I need an helping hand here.

The following is from my controller class.
Saving an person can throw an SavePersonException (which then is rollbacked in the service, DAO layer)

    @RequestMapping(value = "/savePerson", method = RequestMethod.POST, produces = {
            MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_XML_VALUE }, consumes = {
            MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_XML_VALUE })
    @ResponseBody
    public void savePerson(@RequestBody Person person) throws SavePersonException {
        personService.save(person);
    }
.
.
    @ExceptionHandler(SavePersonException.class)
    @ResponseBody
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    public Error handleException(SavePersonException e, HttpServletResponse response) {
        return new Error(e.getMessage());
    }

I'm here using the resttemplate, and setting firstname to more than 20 chars, results in an SavePersonException.
But how can I get the Error object (entity object, just like Person), which have detailed information about the error?

    @Test
    public void savePerson2() {
        Person person = TestData.getNilsHult();
        person.setFirstName("0123456789012345678901234");

        try {
            template.postForObject(BASE_URL + "/savePerson", person, Person.class);        
        } catch (RestClientException e) {
            System.out.println("--> " + e.getMessage());
        }        
    }

An workaround could be to always return some general responseobject and in that put info about the operation (succeded and failures), but the code will be filled with more clutter...

MyResponseObject response = template.postForObject(BASE_URL + "/savePerson", person, MyResponseObject.class);
response.getDetailErrorInfo() and so on 
.
.
   @RequestMapping(value = "/savePerson", method = RequestMethod.POST, produces = {
            MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_XML_VALUE }, consumes = {
            MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_XML_VALUE })
    @ResponseBody
    public MyResponseObject savePerson(@RequestBody Person person) throws SavePersonException {
        personService.save(person);
        return new MyResponseObject(aaa, bbb, ccc);
    }