/usr/share/maven-repo/org/apache/ant/ant-junit/debian/ant-junit-debian.jar is in ant-optional 1.10.3-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/org/apache/ant/ant-junit/debian/../../../../../../java/ant-junit-1.10.3.jar