/usr/share/java/freehep-graphicsio-tests-2.1.1.jar is in libfreehep-graphicsio-tests-java 2.1.1+dfsg1-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/../maven-repo/org/freehep/freehep-graphicsio-tests/2.1.1/freehep-graphicsio-tests-2.1.1.jar