/usr/ is in libjt400-java 9.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/maven-repo/net/sf/jt400/jt400/
/usr/share/maven-repo/net/sf/jt400/jt400/9.0/
/usr/share/
/usr/share/doc/
/usr/share/doc/libjt400-java/
/usr/share/doc/libjt400-java/changelog.Debian.gz
/usr/share/doc/libjt400-java/copyright
/usr/share/java/
/usr/share/java/jt400-9.0.jar
/usr/share/maven-repo/
/usr/share/maven-repo/net/
/usr/share/maven-repo/net/sf/
/usr/share/maven-repo/net/sf/jt400/
/usr/share/maven-repo/net/sf/jt400/jt400/9.0/jt400-9.0.pom
/usr/share/maven-repo/net/sf/jt400/jt400/debian/
/usr/share/maven-repo/net/sf/jt400/jt400/debian/jt400-debian.pom
/usr/share/java/jt400.jar
/usr/share/maven-repo/net/sf/jt400/jt400/9.0/jt400-9.0.jar
/usr/share/maven-repo/net/sf/jt400/jt400/debian/jt400-debian.jar