/usr/ is in libjxgrabkey-java 0.3.2-7.
This file is owned by root:root, with mode 0o755.
..
/usr/share/java/
/usr/share/java/JXGrabKey-0.3.2.jar
/usr/share/maven-repo/
/usr/share/maven-repo/jxgrabkey/
/usr/share/maven-repo/jxgrabkey/jxgrabkey/
/usr/share/maven-repo/jxgrabkey/jxgrabkey/3.2/
/usr/share/
/usr/share/doc/
/usr/share/doc/libjxgrabkey-java/
/usr/share/doc/libjxgrabkey-java/copyright
/usr/share/maven-repo/jxgrabkey/jxgrabkey/3.2/jxgrabkey-3.2.pom
/usr/share/maven-repo/jxgrabkey/jxgrabkey/debian/
/usr/share/maven-repo/jxgrabkey/jxgrabkey/debian/jxgrabkey-debian.pom
/usr/share/doc/libjxgrabkey-java/CHANGELOG.txt.gz
/usr/share/doc/libjxgrabkey-java/changelog.Debian.gz
/usr/share/java/JXGrabKey.jar
/usr/share/maven-repo/jxgrabkey/jxgrabkey/3.2/jxgrabkey-3.2.jar
/usr/share/maven-repo/jxgrabkey/jxgrabkey/debian/jxgrabkey-debian.jar