No, that's generated also, but is highly reusable whereas some people get along completely fine without Java (unless you make them pull it in for Bazel for Firefox).

So a matter of opinion and language religion.

Well, no. Reproducible builds are a security concern and a source base distro is highly optimizable and configurable. Just because you do not see the purpose does not mean one is absent.

But you can still do reproducible builds with Java. GP refers to wanting to avoid Java for no good reason, not reproducible builds themselves.

Unless you happen to use certified compilers, reproducible builds are a best hope kind of thing.