Well, I'm trying to move forward with using/learning Groovy.
But, I need to use it with JPA and EJB3 session beans.
In case you were wondering... There aren't any good ('realistic') examples of how to do this. At least not that I was able to find on the web.
It may be, that there are books that demonstrate how to use them - I don't know yet.
So, instead of being able to jump in and run -