/usr/share/maven-repo/org/slf4j/slf4j-nop/debian/slf4j-nop-debian.jar is in libslf4j-java 1.7.25-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/org/slf4j/slf4j-nop/debian/../../../../../java/slf4j-nop.jar