/usr/share/maven-repo/org/eclipse/jetty/jetty-jsp/debian/jetty-jsp-debian.jar is in libjetty8-java 8.1.19-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/org/eclipse/jetty/jetty-jsp/debian/../../../../../../java/jetty8-jsp.jar