title: Error: Class declares multiple JSON fields named serialVersionUid
body: <p>I have class A, that extends class B, that implements Serializable. </p>
  
  <p>When i try to transform it in a JSON, using GSON lib, it says that "class declares multiple JSON fields named serialVersionUid".</p>
  
  <p>As long as i know, if i don't explicit declare serialVersionUid, it is generated by GSON.</p>
  
  <p>I also tried to put serialVersionUid statically, but doesn't work.</p>
  
  <p>I can fix the error by implementing Serialization in class A, but i have many classes that extends B, and i don't think exclude B from them will be a good ideia...</p>
  
  <p>Does anyone know why this error occurs?</p>
  
  <pre><code>Class A extends B {
      private c;
      private d;
      private e;
  }
  
  Class B extends Serializable{
      private f;
      private g;
  }
  </code></pre>