title: Is there a way to make @ModelAttribute dynamic?
body: <p>For example, in this controller:</p>
  
  <pre><code>@RequestMapping(value = "/save", method = RequestMethod.POST)
      public @ResponseBody String save(
              @ModelAttribute("newInstance") MyClass newInstance) { . . . }
  </code></pre>
  
  <p>Is it possible to make the <code>@ModelAttribute</code> annotated parameter dynamic? I want to be able to use it for multiple objects, regardless of type. </p>