Is the IRC channel still active? I have tried several times so far and no one was there. I would like to get in touch with one of the project maintainers to discuss possible contribution opportunities. We have HornetQ as support project for a course at university.
Our IRC channel is #hornetq on freenode and it is active. Unless you direct a message at one of the developers directly it may take awhile for you to get noticed because we tend to stay busy with our work.