Socket program to send and receive user defined objects not working

Question

I have a user defined class Message, whose object I would like to pass between the client and the server.

The Message class is as follows:

import jav         


        

Answer 1

You need to create the ObjectOutputStream before the ObjectInputStream at both ends.

The reason is that, as described in the Javadoc, the respective constructors write and read a stream header. So the input stream constructor can't return until the output stream constructor at the peer has executed. So if you construct both input streams first there is a deadlock.