/usr/ is in libjenkins-htmlunit-java 2.6-jenkins-6-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/java/
/usr/share/
/usr/share/java/jenkins-htmlunit-2.6-jenkins-6.jar
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/jenkins-ci/
/usr/share/maven-repo/org/jenkins-ci/htmlunit/
/usr/share/maven-repo/org/jenkins-ci/htmlunit/debian/
/usr/share/maven-repo/org/jenkins-ci/htmlunit/debian/htmlunit-debian.pom
/usr/share/maven-repo/org/jenkins-ci/htmlunit/2.6-jenkins-6/
/usr/share/maven-repo/org/jenkins-ci/htmlunit/2.6-jenkins-6/htmlunit-2.6-jenkins-6.pom
/usr/share/doc/
/usr/share/doc/libjenkins-htmlunit-java/
/usr/share/doc/libjenkins-htmlunit-java/changelog.Debian.gz
/usr/share/doc/libjenkins-htmlunit-java/copyright
/usr/share/java/jenkins-htmlunit.jar
/usr/share/maven-repo/org/jenkins-ci/htmlunit/debian/htmlunit-debian.jar
/usr/share/maven-repo/org/jenkins-ci/htmlunit/2.6-jenkins-6/htmlunit-2.6-jenkins-6.jar