/usr/share/maven-repo/org/slf4j/slf4j-log4j12/debian/slf4j-log4j12-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-log4j12/debian/../../../../../java/slf4j-log4j12.jar