[Slartie]

Neat idea! As a mostly-Java coder (by choice), I love both the approach to testing your own tool as well as the slight side blow into the Java community regarding long stack traces full of framework-contributed delegation classes and virtual proxies.

But...not more than 20k classes? That doesn't really count as "massive Java application" these days, more like an average-sized enterprise app when including all its dependencies. You would at least triple that to reach "massive" scale ;-)