Ian Darwin had a port for this in 2006, but it looks like it never got committed: http://marc.info/?l=openbsd-ports&m=114886005130181&w=2 Here's a new port of groovy-1.6.6 for anyone who needs it. I can commit it, too, if I get OKs and there is demand.
Stefan
groovy.tar.gz
Description: application/tar-gz
