title: Get List<GraphUser> from executeAndWait() for Facebook integration on Android
body: <p>I know how to asynchronously do a <code>Request.newMyFriendsRequest(session,Request.GraphUserListCallback)</code> and in the callback method you have access to the <code>List&lt;GraphUser&gt;</code> element. The question is how do you do this in a background thread.</p>
  
  <p>What I have so far is</p>
  
  <pre><code>Request friendsRequest = new Request(session,"/me/friends");
  Response response = friendsRequest.executeAndWait();
  GraphObject obj = response.getGraphObject();
  </code></pre>
  
  <p>How do I convert <code>obj</code> to a <code>List&lt;GraphUser&gt;</code> or is there a better way and I'm just missing something?</p>