/usr/share/maven-repo/org/eclipse/jetty/apache-jstl/debian/apache-jstl-debian.jar is in libjetty9-java 9.2.14-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/maven-repo/org/eclipse/jetty/apache-jstl/debian/../../../../../../java/jetty9-apache-jstl.jar