listenObs.subscribe(new Action1<RxNetServer>() {
@Override
public void call(RxNetServer rxNs) {
assertTrue(rxNetServer == rxNs);
RxNetClient rxNetClient = new RxNetClient(vertx.createNetClient());
Observable<RxNetSocket> connectObs = rxNetClient.connect(1234);
connectObs.subscribe(new Action1<RxNetSocket>() {
@Override
public void call(RxNetSocket rxNetSocket) {
rxNetSocket.coreSocket().write("somedata");
rxNetSocket.asObservable().subscribe(new Action1<Buffer>() {