Bug#981967: maven-javadoc-plugin: Adjust the source level automatically

[Emmanuel Bourg]

Package: libmaven-javadoc-plugin-java
Version: 3.0.1-4
Severity: normal
User: debian-java at lists.debian.org
Usertags: default-java17

Similarly to ant [1] and plexus-compiler [2], maven-javadoc-plugin should
automatically adjust the source parameter for the current JDK.

This could fix some build failures with OpenJDK 17 (junit4 for example).


[1] https://salsa.debian.org/java-team/ant/-/blob/master/debian/patches/0013-auto-adjust-target.patch
[2] https://salsa.debian.org/java-team/plexus-compiler/-/blob/master/debian/patches/auto-adjust-language-level.patch