title: Best solution for Java HTTP push (messaging)
body: <p>We want to push data from a server to clients but can only use HTTP (port 80). What is the best solution for messaging? One idea is <a href="http://en.wikipedia.org/wiki/Comet_(programming)" rel="noreferrer">Comet</a>. Are there other ideas or frameworks which offer lets say JMS over HTTP. (Yes, ActiveMQ supports it too, but waggly IMHO. And JXTA supports it too but the configuration is complicated. Something simple is preferred.)</p>