/usr/ is in libjama-java 1.0.3-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/maven-repo/
/usr/share/maven-repo/gov/
/usr/share/maven-repo/gov/nist/
/usr/share/maven-repo/gov/nist/math/
/usr/share/maven-repo/gov/nist/math/jama/
/usr/share/maven-repo/gov/nist/math/jama/debian/
/usr/share/maven-repo/gov/nist/math/jama/debian/jama-debian.pom
/usr/share/maven-repo/gov/nist/math/jama/1.0.3/
/usr/share/maven-repo/gov/nist/math/jama/1.0.3/jama-1.0.3.pom
/usr/share/java/
/usr/share/java/jama-1.0.3.jar
/usr/share/doc/
/usr/share/doc/libjama-java/
/usr/share/doc/libjama-java/changelog.gz
/usr/share/doc/libjama-java/copyright
/usr/share/doc/libjama-java/changelog.Debian.gz
/usr/share/maven-repo/gov/nist/math/jama/debian/jama-debian.jar
/usr/share/maven-repo/gov/nist/math/jama/1.0.3/jama-1.0.3.jar
/usr/share/java/jama.jar