Going to attempt to fix a bug (and submit a patch)

I'd like to try and fix the bug I just submitted: (http://jira.codehaus.org/browse/GRAILS-4714), but could use a little help getting pointed in the right direction. My first concern would be that I can't successfully run the all unit tests from the lastest source from git. However, I do see that the continuous builds are fine, so I assume it's some configuration error on my end (although I have no idea what)


Here's what I get for test output:

Failures: http://pastebin.com/feea5781

Errors: http://pastebin.com/f37937318

Full result: http://pastebin.com/f7525e3e


My second concern is I'm for the most part trying to familiarize myself with the source, with the help of (I'm assuming) relatively out of date documentation (http://www.grails.org/Developer+-+Hibernate+Integration). Perhaps someone could tell me where to start trying to fix this bug, as well as how to efficiently test?