/usr/share/jetty/start-daemon.jar is in libjetty-java 6.1.26-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/jetty/../java/jetty-start-daemon-6.1.26.jar
/usr/share/jetty/../java/jetty-start-daemon-6.1.26.jar