Need help debugging Groovy project

I am currently working on a project where I need to debug Groovy code, including some of its dependencies (Spring, etc.)

I am used to using Maven where I can just download sources and start stepping into dependency source code.  The Groovy project that I am working on uses Spring and I want to bring in that source to see how the bootstrapping process works in this project.  Does anyone know how to do this in a Groovy project?  I have already imported the project and I can debug it, now I just need to be able to import dependency source.

Any help would be greatly appreciated.

Thanks,

Casey