/usr/share/maven-repo/ch/qos/logback/logback-classic/1.1.2/logback-classic-1.1.2.jar is in liblogback-java 1:1.1.2-1+deb8u1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/ch/qos/logback/logback-classic/1.1.2/../../../../../../java/logback-classic-1.1.2.jar