/usr/share/maven-repo/io/netty/netty/3.9.0.Final/netty-3.9.0.Final.jar is in libnetty-3.9-java 3.9.0.Final-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/io/netty/netty/3.9.0.Final/../../../../../java/netty-3.9.0.Final.jar