/usr/share/java/plexus-digest-1.1.jar is in libplexus-digest-java 1.1-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/../maven-repo/org/codehaus/plexus/plexus-digest/1.1/plexus-digest-1.1.jar