/usr/ is in liblog4j1.2-java 1.2.16-3ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/java/
/usr/share/java/log4j-1.2-1.2.16.jar
/usr/share/doc/
/usr/share/doc/liblog4j1.2-java/
/usr/share/doc/liblog4j1.2-java/copyright
/usr/share/doc/liblog4j1.2-java/README.Debian
/usr/share/doc/liblog4j1.2-java/changelog.Debian.gz
/usr/share/maven-repo/
/usr/share/maven-repo/log4j/
/usr/share/maven-repo/log4j/log4j/
/usr/share/maven-repo/log4j/log4j/1.2.x/
/usr/share/maven-repo/log4j/log4j/1.2.x/log4j-1.2.x.pom
/usr/share/maven-repo/log4j/log4j/1.2.16/
/usr/share/maven-repo/log4j/log4j/1.2.16/log4j-1.2.16.pom
/usr/share/java/log4j-1.2.jar
/usr/share/maven-repo/log4j/log4j/1.2.x/log4j-1.2.x.jar
/usr/share/maven-repo/log4j/log4j/1.2.16/log4j-1.2.16.jar