/usr/share/maven-repo/com/thoughtworks/xstream/xstream-benchmark/1.3.1/xstream-benchmark-1.3.1.jar is in libxstream-java 1.3.1-7.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/com/thoughtworks/xstream/xstream-benchmark/1.3.1/../../../../../../java/xstream-benchmark-1.3.1.jar