/usr/share/maven-repo/net/sf/proguard/proguard-retrace/6.0.1/proguard-retrace-6.0.1.jar is in libproguard-java 6.0.1-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/net/sf/proguard/proguard-retrace/6.0.1/../../../../../../java/proguard-retrace-6.0.1.jar