title: GWT Arrays.asList not working on interface types
body: <p>Working on a GWT project (2.7.0), i have experienced a very odd client code behaviour.</p>
  
  <p>The following code throws the error "SEVERE: (ReferenceError) : Ljava_io_Serializable_2_classLit_0_g$ is not definedcom.google.gwt.core.client.JavaScriptException: (ReferenceError) : Ljava_io_Serializable_2_classLit_0_g$ is not defined".</p>
  
  <p>The error occurs, when calling <code>Arrays.asList()</code> with a parameter, that has an interface type.
  Is this expected behaviour or a GWT bug?</p>
  
  <pre><code>// Working
  Integer n1 = 1;
  Arrays.asList(n1);
  // Not working
  Serializable n2 = 1;
  Arrays.asList(n2);
  </code></pre>