ZeroMQServer.java

import android.os.Handler;

import org.jeromq.ZMQ;

public class ZeroMQServer implements Runnable {
    private final Handler uiThreadHandler;

    public ZeroMQServer(Handler uiThreadHandler) {
        this.uiThreadHandler = uiThreadHandler;
    }

    @Override
    public void run() {
        ZMQ.Context context = ZMQ.context(1);
        ZMQ.Socket socket = context.socket(ZMQ.REP);
        socket.bind("tcp://127.0.0.1:5555");

        while(!Thread.currentThread().isInterrupted()) {
            byte[] msg = socket.recv(0);
            uiThreadHandler.sendMessage(
                    Util.bundledMessage(uiThreadHandler, new String(msg)));
            socket.send(Util.reverseInPlace(msg), 0);
        }
        socket.close();
        context.term();
    }
}

I know this is quite dated but any idea what the Util class would be called now? Android seems to have no documentation on it.