/usr/share/php/data/ApiGen/theme-default/js/jquery.cookie.js is in php-apigen-theme-default 1.0.2+dfsg-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/php/data/ApiGen/theme-default/js/../../../../../javascript/jquery-cookie/jquery.cookie.js