I just committed the checkstyle patch (KAFKA-1915). This will do the checkstyle evaluation when you run the unit tests and error on style inconsistencies. It can be hard to say which checks are more trouble than they are worth or are two pedantic. Let's give this a try and see if it is annoying or helpful. If annoying let's tune our config to try to fix it.
The hope is this will help keep things pretty as we continue to expand the set of contributors. -Jay
