/usr/share/maven-repo/org/libreoffice/ridl/debian/ridl-debian.jar is in ure 4.2.3~rc3-0ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/org/libreoffice/ridl/debian/../../../../../java/ridl-4.2.3.jar