/usr/share/java/plexus-classworlds-2.5.2.jar is in libplexus-classworlds-java 2.5.2-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/plexus-classworlds.jar
/usr/share/java/plexus-classworlds.jar