Groovy's version 1.7.2 is available. Portage version currently is at 1.6.5 / 1.6.8.
Steps to Reproduce:
Please bear with me: My first report.
Created attachment 244133 [details]
Here's one I came up with for 1.7.4, just a couple of extra depends / lines added to the compile stage for included libraries
Commited 1.7.5 to tree today. Closing.