This is not really a JBoss related question. There are several ANT tasks to build some archives. Take the one you prefer. You can use the JAR task or even the EAR task. But ANT won't help you much with deployment descriptors.
> This is not really a JBoss related question.
Ok... I will rephrase it slightly. I am trying to deploy this EJB into JBoss and am curious if anyone has had a similar issue deploying to JBoss and might have come up with some way to automate the process of incorporating third-party jar files into their EJB deployment into JBoss.
You're right. That makes it way more clear. :)
Well, same answer again ;-)
What is so bad using the ant tasks instead of "doing it by hand"?
What would you expect to use? There is no easy and generic way of doing the assembly, since the deployment is very specific and depends on your special needs for your special application.