java/eclipse: fix build consumer devel/subversive, commit files ignored with .gitignore
- Return file Makefile.plugins required for consumer devel/subversive.
- Update java version in Makefile.plugins from 8 to 17 - eclipse require at least 17.
- Thanks to .gitignore with line "*.sw[p-z]": $ git add java/eclipse/files/addons/eclipse.platform.swt The following paths are ignored by one of your .gitignore files: java/eclipse/files/addons/eclipse.platform.swt hint: Use -f if you really want to add them. hint: Disable this message with "git config advice.addIgnoredFile false" Force add this directory.
PR: 281123
Reported by: yasu (email), antoine (email), Norbert Grundmann
Approved by: Norbert Grundmann <ngrundmann@gmx.de> (maintainer)
Fixes: 27eb99fc4755 (Update 4.24 → 4.32, take maintainership)