title: GWT Arraylist<object> serialization
body: <p>I have two different model class,</p>
  
  <pre><code>public class ModelDto implements IsSerializable{
       public ModelDto {}
       private Integer id;
       private String name;
       private ArrayList&lt;Test&gt; name;
  }
  
  public class Test implements IsSerializable{
       public Test {}
       private Integer id;
       private String name;
       private ArrayList&lt;Test&gt; name;
  }
  </code></pre>
  
  <p>I want to make a RPC call like</p>
  
  <pre><code>ModelDto getModel();
  </code></pre>
  
  <p>How to achieve this? I know that the issue is basic serialization. but I want to know that how to pass a ArrayList in RPC If not posible any alternatives?.</p>