Upstream issue: https://github.com/fedora-java/xmvn/issues/142

XMvn Javadoc MOJO should call javadoc from JDK toolchain, if enabled, but it does not.
As a result wrong Javadoc tool is used to generate javadoc for all Java packages that are built with toolchains.

Reproducer:

dnf install maven-javadoc
grep 'Generated by' /usr/share/javadoc/maven/index.html

Actual output:

<!-- Generated by javadoc (11.0.25) on Sat Nov 23 09:30:11 UTC 2024 --> 

Expected: javadoc was generated by OpenJDK 8, which is used to build Maven 3.6 in RHEL 9.