/usr/ is in libcommons-math-java 2.2-4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/libcommons-math-java/
/usr/share/doc/libcommons-math-java/copyright
/usr/share/doc/libcommons-math-java/changelog.Debian.gz
/usr/share/doc/libcommons-math-java/RELEASE-NOTES.txt.gz
/usr/share/java/
/usr/share/java/commons-math-2.2.jar
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/apache/
/usr/share/maven-repo/org/apache/commons/
/usr/share/maven-repo/org/apache/commons/commons-math/
/usr/share/maven-repo/org/apache/commons/commons-math/2.2/
/usr/share/maven-repo/org/apache/commons/commons-math/2.2/commons-math-2.2.pom
/usr/share/maven-repo/org/apache/commons/commons-math/debian/
/usr/share/maven-repo/org/apache/commons/commons-math/debian/commons-math-debian.pom
/usr/share/java/commons-math.jar
/usr/share/maven-repo/org/apache/commons/commons-math/2.2/commons-math-2.2.jar
/usr/share/maven-repo/org/apache/commons/commons-math/debian/commons-math-debian.jar