/usr/share/ is in libplexus-io-java 1.0~alpha5-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/java/
/usr/share/java/plexus-io-1.0-alpha-5.jar
/usr/share/doc/
/usr/share/doc/libplexus-io-java/
/usr/share/doc/libplexus-io-java/copyright
/usr/share/doc/libplexus-io-java/changelog.Debian.gz
/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-io/
/usr/share/maven-repo/org/codehaus/plexus/plexus-io/1.0-alpha-5/
/usr/share/maven-repo/org/codehaus/plexus/plexus-io/1.0-alpha-5/plexus-io-1.0-alpha-5.pom
/usr/share/maven-repo/org/codehaus/plexus/plexus-io/debian/
/usr/share/maven-repo/org/codehaus/plexus/plexus-io/debian/plexus-io-debian.pom
/usr/share/java/plexus-io.jar
/usr/share/maven-repo/org/codehaus/plexus/plexus-io/1.0-alpha-5/plexus-io-1.0-alpha-5.jar
/usr/share/maven-repo/org/codehaus/plexus/plexus-io/debian/plexus-io-debian.jar