/usr/ is in libzmq-java 3.1.0-10.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/zeromq/
/usr/share/maven-repo/org/zeromq/jzmq/
/usr/share/maven-repo/org/zeromq/jzmq/debian/
/usr/share/maven-repo/org/zeromq/jzmq/debian/jzmq-debian.pom
/usr/share/maven-repo/org/zeromq/jzmq/3.1.0/
/usr/share/maven-repo/org/zeromq/jzmq/3.1.0/jzmq-3.1.0.pom
/usr/share/java/
/usr/share/java/zmq-3.1.0.jar
/usr/share/lintian/
/usr/share/lintian/overrides/
/usr/share/lintian/overrides/libzmq-java
/usr/share/doc/
/usr/share/doc/libzmq-java/
/usr/share/doc/libzmq-java/changelog.Debian.gz
/usr/share/doc/libzmq-java/changelog.gz
/usr/share/doc/libzmq-java/copyright
/usr/share/doc/libzmq-java/README.md
/usr/share/doc/libzmq-java/AUTHORS
/usr/share/maven-repo/org/zeromq/jzmq/debian/jzmq-debian.jar
/usr/share/maven-repo/org/zeromq/jzmq/3.1.0/jzmq-3.1.0.jar
/usr/share/java/jzmq.jar
/usr/share/java/jzmq-3.1.0.jar
/usr/share/java/zmq.jar