/usr/share/maven-repo/com/puppycrawl/tools/checkstyle/6.15/checkstyle-6.15.jar is in checkstyle 6.15-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/com/puppycrawl/tools/checkstyle/6.15/../../../../../../java/checkstyle.jar