/usr/share/ is in libplexus-archiver-java 1.2-1+deb8u1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/java/
/usr/share/java/plexus-archiver-1.2.jar
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/codehaus/
/usr/share/maven-repo/org/codehaus/plexus/
/usr/share/maven-repo/org/codehaus/plexus/plexus-archiver/
/usr/share/maven-repo/org/codehaus/plexus/plexus-archiver/1.2/
/usr/share/maven-repo/org/codehaus/plexus/plexus-archiver/1.2/plexus-archiver-1.2.pom
/usr/share/maven-repo/org/codehaus/plexus/plexus-archiver/debian/
/usr/share/maven-repo/org/codehaus/plexus/plexus-archiver/debian/plexus-archiver-debian.pom
/usr/share/doc/
/usr/share/doc/libplexus-archiver-java/
/usr/share/doc/libplexus-archiver-java/copyright
/usr/share/doc/libplexus-archiver-java/changelog.Debian.gz
/usr/share/java/plexus-archiver.jar
/usr/share/maven-repo/org/codehaus/plexus/plexus-archiver/1.2/plexus-archiver-1.2.jar
/usr/share/maven-repo/org/codehaus/plexus/plexus-archiver/debian/plexus-archiver-debian.jar