UTF8Buffer topic = new UTF8Buffer(destination);
for( int i=1; i <= messages; i ++) {
// Send the publish without waiting for it to complete. This allows us
// to send multiple message without blocking..
queue.add(connection.publish(topic, msg, QoS.AT_LEAST_ONCE, false));
// Eventually we start waiting for old publish futures to complete
// so that we don't create a large in memory buffer of outgoing message.s
if( queue.size() >= 1000 ) {
queue.removeFirst().await();