/usr/ is in libgoogle-gson-java 2.4-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/java/
/usr/share/java/gson.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/gson/
/usr/share/maven-repo/com/google/code/gson/gson/
/usr/share/maven-repo/com/google/code/gson/gson/2.4/
/usr/share/maven-repo/com/google/code/gson/gson/2.4/gson-2.4.pom
/usr/share/maven-repo/com/google/code/gson/gson/debian/
/usr/share/maven-repo/com/google/code/gson/gson/debian/gson-debian.pom
/usr/share/doc/
/usr/share/doc/libgoogle-gson-java/
/usr/share/doc/libgoogle-gson-java/changelog.gz
/usr/share/doc/libgoogle-gson-java/changelog.Debian.gz
/usr/share/doc/libgoogle-gson-java/copyright
/usr/share/java/gson-2.4.jar
/usr/share/maven-repo/com/google/code/gson/gson/2.4/gson-2.4.jar
/usr/share/maven-repo/com/google/code/gson/gson/debian/gson-debian.jar