Question

Possible Duplicate:
java.net.SocketException: Software caused connection abort: recv failed

I’m trying to write a client server pair where the connection is live all day and the client waits for the server to send a message. The steps are:

1. Server opens port and listens for connection
2. Client connects in and waits for data
3. Some time later (maybe hours) the server sends data to the client
4. Client processes data and returns it to the server
5. Repeat steps 3 and 4

I can get steps 1-4 working, however if I try to repeat step 3 I get the error in the title.

This is my method on the client side:

private static void waitForInput(SSLSocket sslsocket) throws IOException {
        do {
            try {
                ObjectInputStream ois = new ObjectInputStream(sslsocket.getInputStream());
                ObjectOutputStream oos = new ObjectOutputStream(sslsocket.getOutputStream());

                Object o = (Object) (ois.readObject());
                // excluded code to process data     

                oos.flush();
                oos.writeObject(o);
                oos.reset();
            }
            catch(ClassNotFoundException e){
                System.err.println(e.getMessage());
            }
        } while ( true );
    }

The code fails on the 4th line, The first time around it blocks and waits until I get the next bit of data, but it doesn’t work twice. What am I doing wrong?

Answer 1

Connection abort IOException is thrown when you are waiting to read from a socket that has been closed at the other end, check to see your server side code , if you are not accidentally closing the socket.
Also the server side code could be uploaded for deeper analysis, also try posting the stack trace, it will help analyzing.