Issue: 1. In client, I deliver object variable user: client.invoke(user); 2. In server, when server get above client request, it begin to process this request, but exception happened, in order to describe this exception, it record some information in msg property of user, such as: user.setMsg("the reason of this exception: xxx"); 3. In client, I get the exception of server, and when I want to view the information of property msg in user(user.getMsg()), nothing found. Could you please tell me why I could not get msg value in user? Thank you!