/usr/share/maven-repo/commons-collections/commons-collections/3.2.1/commons-collections-3.2.1.jar is in libcommons-collections3-java 3.2.1-7+deb8u1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/commons-collections/commons-collections/3.2.1/../../../../java/commons-collections3-3.2.1.jar