title: How do I clear ModelMap session?
body: <p>I have this annotation at the top of my controller:</p>
  
  <pre><code>@SessionAttributes("user")
  </code></pre>
  
  <p>And this mapping:</p>
  
  <pre><code>@RequestMapping(value="/logout", method = RequestMethod.GET)
  public String logout(ModelMap model){
      model.clear();
  </code></pre>
  
  <p>But when I navigate to that URL it's still able to retrieve the User session attributes..
  How do I properly clear the ModelMap value?</p>