/usr/ is in libjets3t-java 0.8.1+dfsg-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/maven-repo/
/usr/share/maven-repo/net/
/usr/share/maven-repo/net/java/
/usr/share/maven-repo/net/java/dev/
/usr/share/maven-repo/net/java/dev/jets3t/
/usr/share/maven-repo/net/java/dev/jets3t/jets3t/
/usr/share/maven-repo/net/java/dev/jets3t/jets3t/0.x/
/usr/share/maven-repo/net/java/dev/jets3t/jets3t/0.x/jets3t-0.x.pom
/usr/share/maven-repo/net/java/dev/jets3t/jets3t/0.8.1/
/usr/share/maven-repo/net/java/dev/jets3t/jets3t/0.8.1/jets3t-0.8.1.pom
/usr/share/java/
/usr/share/java/jets3t-0.8.1.jar
/usr/share/doc/
/usr/share/doc/libjets3t-java/
/usr/share/doc/libjets3t-java/changelog.Debian.gz
/usr/share/doc/libjets3t-java/copyright
/usr/share/doc/libjets3t-java/NOTICE.txt
/usr/share/maven-repo/net/java/dev/jets3t/jets3t/0.x/jets3t-0.x.jar
/usr/share/maven-repo/net/java/dev/jets3t/jets3t/0.8.1/jets3t-0.8.1.jar
/usr/share/java/jets3t.jar