/usr/share/maven-repo/xalan/serializer/2.7.1/serializer-2.7.1.jar is in libxalan2-java 2.7.1-9.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/xalan/serializer/2.7.1/../../../../java/serializer-2.7.1.jar