/usr/share/java/jgrapht-0.6.jar is in libjgrapht0.6-java 0.6.0-11.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/jgrapht-0.6.0.jar
/usr/share/java/jgrapht-0.6.0.jar