/usr/share/maven-repo/org/libreoffice/unoil/4.2.3/unoil-4.2.3.jar is in libreoffice-java-common 1:4.2.3~rc3-0ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/org/libreoffice/unoil/4.2.3/../../../../../java/unoil-4.2.3.jar