/usr/share/java/sisu-guice-assistedinject-3.1.1.jar is in libsisu-guice-java 3.1.1+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/sisu-guice-assistedinject.jar
/usr/share/java/sisu-guice-assistedinject.jar