/usr/share/ is in libpostgis-java 1:2.2.1-6.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/
/usr/share/doc/libpostgis-java/
/usr/share/doc/libpostgis-java/changelog.Debian.gz
/usr/share/doc/libpostgis-java/copyright
/usr/share/java/
/usr/share/java/postgis-jdbc-2.2.1.jar
/usr/share/maven-repo/
/usr/share/maven-repo/net/
/usr/share/maven-repo/net/postgis/
/usr/share/maven-repo/net/postgis/postgis-jdbc/
/usr/share/maven-repo/net/postgis/postgis-jdbc/2.2.1/
/usr/share/maven-repo/net/postgis/postgis-jdbc/2.2.1/postgis-jdbc-2.2.1.pom
/usr/share/maven-repo/net/postgis/postgis-jdbc/debian/
/usr/share/maven-repo/net/postgis/postgis-jdbc/debian/postgis-jdbc-debian.pom
/usr/share/java/postgis-jdbc.jar
/usr/share/maven-repo/net/postgis/postgis-jdbc/2.2.1/postgis-jdbc-2.2.1.jar
/usr/share/maven-repo/net/postgis/postgis-jdbc/debian/postgis-jdbc-debian.jar