/usr/ is in libcastor-anttasks-java 1.3.2-6.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/libcastor-anttasks-java/
/usr/share/doc/libcastor-anttasks-java/copyright
/usr/share/java/
/usr/share/java/castor-anttasks-1.3.2.jar
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/codehaus/
/usr/share/maven-repo/org/codehaus/castor/
/usr/share/maven-repo/org/codehaus/castor/castor-anttasks/
/usr/share/maven-repo/org/codehaus/castor/castor-anttasks/1.3.2/
/usr/share/maven-repo/org/codehaus/castor/castor-anttasks/1.3.2/castor-anttasks-1.3.2.pom
/usr/share/maven-repo/org/codehaus/castor/castor-anttasks/debian/
/usr/share/maven-repo/org/codehaus/castor/castor-anttasks/debian/castor-anttasks-debian.pom
/usr/share/doc/libcastor-anttasks-java/changelog.Debian.gz
/usr/share/java/castor-anttasks.jar
/usr/share/maven-repo/org/codehaus/castor/castor-anttasks/1.3.2/castor-anttasks-1.3.2.jar
/usr/share/maven-repo/org/codehaus/castor/castor-anttasks/debian/castor-anttasks-debian.jar