/usr/share/maven-repo/org/apache/maven/doxia/doxia-doc-renderer/debian/doxia-doc-renderer-debian.jar is in libdoxia-sitetools-java 1.1.4-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/org/apache/maven/doxia/doxia-doc-renderer/debian/../1.1.4/doxia-doc-renderer-1.1.4.jar