/usr/ is in librobust-http-client-java 1.2-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/java/
/usr/share/java/robust-http-client.jar
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/jvnet/
/usr/share/maven-repo/org/jvnet/robust-http-client/
/usr/share/maven-repo/org/jvnet/robust-http-client/robust-http-client/
/usr/share/maven-repo/org/jvnet/robust-http-client/robust-http-client/debian/
/usr/share/maven-repo/org/jvnet/robust-http-client/robust-http-client/debian/robust-http-client-debian.pom
/usr/share/maven-repo/org/jvnet/robust-http-client/robust-http-client/1.2/
/usr/share/maven-repo/org/jvnet/robust-http-client/robust-http-client/1.2/robust-http-client-1.2.pom
/usr/share/doc/
/usr/share/doc/librobust-http-client-java/
/usr/share/doc/librobust-http-client-java/copyright
/usr/share/doc/librobust-http-client-java/changelog.Debian.gz
/usr/share/java/robust-http-client-1.2.jar
/usr/share/maven-repo/org/jvnet/robust-http-client/robust-http-client/debian/robust-http-client-debian.jar
/usr/share/maven-repo/org/jvnet/robust-http-client/robust-http-client/1.2/robust-http-client-1.2.jar