title: Spring MVC populate @RequestParam Map<String, String>
body: <p>I have the following method in my Spring MVC @Controller :</p>
  
  <pre><code>@RequestMapping(method = RequestMethod.GET)
  public String testUrl(@RequestParam(value="test") Map&lt;String, String&gt; test) {   
      (...)
  }
  </code></pre>
  
  <p>I call it like this :</p>
  
  <pre><code>http://myUrl?test[A]=ABC&amp;test[B]=DEF
  </code></pre>
  
  <p>However the "test" RequestParam variable is always null</p>
  
  <p>What do I have to do in order to populate "test" variable ?</p>