code: private void readObject(java.io.ObjectInputStream s) throws java.io.IOException, ClassNotFoundException {
          s.defaultReadObject();
          mRequestHandler =  new DownloadRequestHandler(this);
      }
docs: Deserialize object.
  
  @param s the stream
  @throws java.io.IOException thrown if there is an issue deserializing object.
  @throws ClassNotFoundException java.io.Cl thrown if a class cannot be found when deserializing.