ServerSocket accept throws nullpointerexception

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I am having a problem with a client server app I am working on, for some reason the ServerSocket class accept message is throwing a NullPointerException when a client attempts to connect to it.

Here is the class responsible for the server:

public class DeviceNameServer implements Runnable {
    @Override
    public void run() {
        try {
            ServerSocket serverSocket = new ServerSocket(Utils.SERVERPORTDEVICENAME);
            while (!Thread.currentThread().isInterrupted()) {
                Socket clientSocket = serverSocket.accept();
                Thread t = new Thread(new DeviceNameRunner(clientSocket, new DefaultDeviceIdentifier()));
                t.start();
            }
        } catch (IOException e) {
            Log.e("CalpolException", e.getLocalizedMessage());
        }
    }
}

This is called by an Activity

nameServerThread = new Thread(new DeviceNameServer());
nameServerThread.start();

nameServerThread is a member of the Activity

This is the code responsible for connecting to the server:

Socket socket = new Socket();

            try {
                socket.connect(new InetSocketAddress(serverIp, Utils.SERVERPORTDEVICENAME), 500);

                InputStream is = socket.getInputStream();
                while (socket.isConnected()) {
                    BufferedReader reader = new BufferedReader(new InputStreamReader(is));
                    StringBuilder out = new StringBuilder();

                    socket.close();
                    break;
                }

            } catch (IOException e) {
                e.printStackTrace();
            }

As soon as this executes the serverSocket.accept() message throws a NullPointerException

Has anyone seen this before?

asked 13 secs ago

Armand

1,843

ServerSocket accept throws nullpointerexception