/usr/ is in libjffi-java 1.0.2-11.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/libjffi-java/
/usr/share/doc/libjffi-java/changelog.Debian.gz
/usr/share/doc/libjffi-java/copyright
/usr/share/java/
/usr/share/java/jffi-1.0.2.jar
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/jruby/
/usr/share/maven-repo/org/jruby/extras/
/usr/share/maven-repo/org/jruby/extras/jffi/
/usr/share/maven-repo/org/jruby/extras/jffi/debian/
/usr/share/maven-repo/org/jruby/extras/jffi/debian/jffi-debian.pom
/usr/share/maven-repo/org/jruby/extras/jffi/1.0.2/
/usr/share/maven-repo/org/jruby/extras/jffi/1.0.2/jffi-1.0.2.pom
/usr/share/java/jffi.jar
/usr/share/maven-repo/org/jruby/extras/jffi/debian/jffi-debian.jar
/usr/share/maven-repo/org/jruby/extras/jffi/1.0.2/jffi-1.0.2.jar