title: Implementing RealmModel interface while extending another object
body: <p>I want to use the new feature of realm-java, where I can just implement RealmModel interface and add @RealmClass annotation to define a table. Everything works fine, until I try to extend some class. I get this error during compile time:</p>
  
  <pre><code>Realm model classes must either extend RealmObject or implement RealmModel to be considered a valid model class
  </code></pre>
  
  <p>I tried to add the annotation and implement RealmModel on the super class, but no effect.</p>
  
  <p>Am I missing something ? </p>