JRuby on Rails and Java dependency management

I've been searching online for a good way to manage Java dependencies in a JRuby on Rails app. I am interested in a way to structure the initial setup. I will have to use quite a lot of machine learning and natural language processing jars in this project.

Any help would be much appreciated

I actually haven't used JRuby much at all personally, but I'm really curious about how this works as well. JRuby is a really fantastic project especially when you need to integrate with existing Java libraries.