/usr/share/java/freehep-graphicsio-swf.jar is in libfreehep-graphicsio-swf-java 2.1.1+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/../maven-repo/org/freehep/freehep-graphicsio-swf/2.1.1/freehep-graphicsio-swf-2.1.1.jar