}, null);
subscriber.asyncSubscribe(topic, subid, CreateOrAttach.ATTACH, new Callback<Void>() {
@Override
public void operationFinished(Object ctx, Void resultOfOperation) {
try {
subscriber.startDelivery(topic, subid, new MessageHandler() {
@Override
public void deliver(ByteString topic, ByteString subid, Message msg,
Callback<Void> callback, Object context) {
deliverLatch.countDown();
}