/usr/share/javascript/jquery-ui/jquery-ui.js is in libjs-jquery-ui 1.8.ooops.18+dfsg-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/javascript/jquery-ui/ui/jquery-ui-1.8.18.custom.js
/usr/share/javascript/jquery-ui/ui/jquery-ui-1.8.18.custom.js