/usr/share/java/freehep-graphicsio-tests-2.1.1.jar is in libfreehep-graphicsio-tests-java 2.1.1+dfsg1-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/freehep-graphicsio-tests.jar
/usr/share/java/freehep-graphicsio-tests.jar