/usr/share/java/stax.jar is in libstax-java 1.2.0-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/../maven-repo/stax/stax/1.2.0/stax-1.2.0.jar
/usr/share/java/../maven-repo/stax/stax/1.2.0/stax-1.2.0.jar