Even if the dependencies are just libraries, and not renamed, and not shaded in, it does mean consumers have to use compatible versions to have a classpath that works. But perhaps that's obvious.

that's true of all libraries

Indeed. Just when it's the core language it's a bit more pervasive perhaps?

Either way. Sounds better than shading in. So just an aside.

I guess its official now https://github.com/google/closure-library/commit/a22e75ebf7a10cc3acb3bbf0a23898301cf961f2

> RELNOTES[INC]: Closure Compiler now requires OpenJDK 11.

as far as I can tell it doesn't actually yet (apart from some tests) but safe to assume it'll over time