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  AddressModel md = (AddressModel) getModel(AddressModel.class, request);
  ByteArrayOutputStream byteOut = new ByteArrayOutputStream(); 
  ObjectOutputStream out = new ObjectOutputStream(byteOut); 
  out.writeObject(md); 
  ByteArrayInputStream byteIn = new ByteArrayInputStream(byteOut.toByteArray()); 
  ObjectInputStream in =new ObjectInputStream(byteIn); 
  AddressModel md1 = (AddressModel)in.readObject();


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