/usr/ is in libpostgresql-jdbc-java 9.4.1212-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/
/usr/share/doc/
/usr/share/doc/libpostgresql-jdbc-java/
/usr/share/doc/libpostgresql-jdbc-java/README.md.gz
/usr/share/doc/libpostgresql-jdbc-java/changelog.Debian.gz
/usr/share/doc/libpostgresql-jdbc-java/copyright
/usr/share/java/
/usr/share/java/postgresql.jar
/usr/share/maven-repo/
/usr/share/maven-repo/org/
/usr/share/maven-repo/org/postgresql/
/usr/share/maven-repo/org/postgresql/pgjdbc-aggregate/
/usr/share/maven-repo/org/postgresql/pgjdbc-aggregate/9.4.1212/
/usr/share/maven-repo/org/postgresql/pgjdbc-aggregate/9.4.1212/pgjdbc-aggregate-9.4.1212.pom
/usr/share/maven-repo/org/postgresql/pgjdbc-aggregate/debian/
/usr/share/maven-repo/org/postgresql/pgjdbc-aggregate/debian/pgjdbc-aggregate-debian.pom
/usr/share/maven-repo/org/postgresql/postgresql/
/usr/share/maven-repo/org/postgresql/postgresql/9.4.1212/
/usr/share/maven-repo/org/postgresql/postgresql/9.4.1212/postgresql-9.4.1212.pom
/usr/share/maven-repo/org/postgresql/postgresql/debian/
/usr/share/maven-repo/org/postgresql/postgresql/debian/postgresql-debian.pom
/usr/share/maven-repo/postgresql/
/usr/share/maven-repo/postgresql/postgresql/
/usr/share/maven-repo/postgresql/postgresql/debian/
/usr/share/maven-repo/postgresql/postgresql/debian/postgresql-debian.pom
/usr/share/java/postgresql-9.4.1212.jar
/usr/share/java/postgresql-jdbc3.jar
/usr/share/java/postgresql-jdbc4.jar
/usr/share/maven-repo/org/postgresql/postgresql/9.4.1212/postgresql-9.4.1212.jar
/usr/share/maven-repo/org/postgresql/postgresql/debian/postgresql-debian.jar