/usr/ is in libfindbugs-java 3.1.0~preview2-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/libfindbugs-java/
/usr/share/doc/libfindbugs-java/changelog.Debian.gz
/usr/share/doc/libfindbugs-java/copyright
/usr/share/java/
/usr/share/java/findbugs-3.0.1.jar
/usr/share/maven-repo/
/usr/share/maven-repo/com/
/usr/share/maven-repo/com/google/
/usr/share/maven-repo/com/google/code/
/usr/share/maven-repo/com/google/code/findbugs/
/usr/share/maven-repo/com/google/code/findbugs/findbugs/
/usr/share/maven-repo/com/google/code/findbugs/findbugs/3.0.1/
/usr/share/maven-repo/com/google/code/findbugs/findbugs/3.0.1/findbugs-3.0.1.pom
/usr/share/maven-repo/com/google/code/findbugs/findbugs/debian/
/usr/share/maven-repo/com/google/code/findbugs/findbugs/debian/findbugs-debian.pom
/usr/share/java/findbugs.jar
/usr/share/maven-repo/com/google/code/findbugs/findbugs/3.0.1/findbugs-3.0.1.jar
/usr/share/maven-repo/com/google/code/findbugs/findbugs/debian/findbugs-debian.jar