/usr/share/java/org-openide-util-lookup.jar is in libnb-org-openide-util-lookup-java 7.4+dfsg1-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/java/org-openide-util-lookup-7.4.jar
/usr/share/java/org-openide-util-lookup-7.4.jar