/usr/share/maven-repo/org/codehaus/plexus/plexus-compiler-jikes/debian/plexus-compiler-jikes-debian.jar is in libplexus-compiler-java 1.9.2-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/org/codehaus/plexus/plexus-compiler-jikes/debian/../../../../../../java/plexus-compiler-jikes.jar