Co-authored-by: mizdebsk@redhat.com
1)
Javadoc generation is disabled temporarily, because xmvn javadoc is not
able to exclude packages from generating the javadocs. Because of this
the javadoc build is failing.
The javadoc build can be reenabled when this feature is implemented:
https://github.com/fedora-java/xmvn/issues/161
2)
Add patch for changing compileSourceRoot for Java9.
Resolves: #2049625
