/usr/ is in libjenkins-winstone-java 0.9.10-jenkins-47+dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/jenkins-ci/
/usr/share/maven-repo/org/jenkins-ci/winstone/
/usr/share/maven-repo/org/jenkins-ci/winstone/debian/
/usr/share/maven-repo/org/jenkins-ci/winstone/debian/winstone-debian.pom
/usr/share/maven-repo/org/jenkins-ci/winstone/0.9.10-jenkins-47/
/usr/share/maven-repo/org/jenkins-ci/winstone/0.9.10-jenkins-47/winstone-0.9.10-jenkins-47.pom
/usr/share/doc/
/usr/share/doc/libjenkins-winstone-java/
/usr/share/doc/libjenkins-winstone-java/copyright
/usr/share/doc/libjenkins-winstone-java/changelog.Debian.gz
/usr/share/java/
/usr/share/java/jenkins-winstone-0.9.10-jenkins-47.jar
/usr/share/maven-repo/org/jenkins-ci/winstone/debian/winstone-debian.jar
/usr/share/maven-repo/org/jenkins-ci/winstone/0.9.10-jenkins-47/winstone-0.9.10-jenkins-47.jar
/usr/share/java/jenkins-winstone.jar