Very good point. It appears Maven doesn't pick it up. I can see org.junit.tests.AllTests as the seemingly appropriate place to put this. 

I also noticed org.junit.tests.experimental.rules.TimeoutRuleTest when I wrote this latest pull request. Do you think it's okay to have two unit tests classes for this? The one I've written is leverage package private methods (but they could be promoted to protected I suppose). What do you think?