title: GWT + ArrayList + Server Side
body: <p>I am developing an application in GWT.
  In server side had a method that returns an arraylist. In client side, when i invoke the method, gets onFailure. </p>
  
  <blockquote>
  <pre><code>public void onFailure(Throwable caught){
  label.setText("ERROR");
  }
  public void onSuccess(ArrayList&lt;partner&gt; result){
  // do something
  }
  </code></pre>
  </blockquote>
  
  <p>The label gets "ERROR"!</p>
  
  <p>Anyone knows why?</p>
  
  <p>Cumps!</p>