/usr/share/java/maven-antrun-extended-plugin.jar is in libmaven-antrun-extended-plugin-java 1.42-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/../maven-repo/org/jvnet/maven-antrun-extended-plugin/maven-antrun-extended-plugin/1.42/maven-antrun-extended-plugin-1.42.jar