Accepted answer creates a new POJO to pass things around, but the same behaviour can be achieved without creating additional objects by reusing the http request.
Example code for Controller mapping:
public ResponseEntity savePerson(@RequestBody Person person, WebRequest webRequest) {
webRequest.setAttribute("person", person, RequestAttributes.SCOPE_REQUEST);
And later in the ExceptionHandler class / method you can use:
@ExceptionHandler(Exception.class)
public ResponseEntity exceptionHandling(WebRequest request,Exception thrown) {
Person person = (Person) request.getAttribute("person", RequestAttributes.SCOPE_REQUEST);