[fedora-java] Macros controlling the source/target/release level flags for javac

[Jiri Vanek]

Hi!

I had risen this topic during jdk11 bump. but it somehow get lost.

The idea is, to provide rpm macros, keeping the default source/target eventually - for
jdk11 and up -the release - numbers for javac to use.
Then to provide tooling, which will help packagers to use them - for ant and maven it
should be simple. For others, probably nothing to do on our side, each packager will be
able to patch/sed theirs builds as necessary (Still it will help  a lot for future).
I do not know how to provide them as default (except hardcoding in xmvn, and only allow to
disable them on demand).

This will smooth the bump to jdk17 in f36 really a lot.


Thoughts?
  J.
-- 
Jiri Vanek
Senior QE engineer, OpenJDK QE lead, Mgr.
Red Hat Czech
jvanek(a)redhat.com    M: [phone]