libjetty9-extra-java 9.4.15-1~18.04.1ubuntu1 (amd64 binary) in ubuntu bionic

 Jetty is an Open Source HTTP Servlet Server written in 100% Java.
 It is designed to be light weight, high performance, embeddable,
 extensible and flexible, thus making it an ideal platform for serving
 dynamic HTTP requests from any Java application.
 The extra libraries include jetty-management, jetty-naming,
 jetty-servlet-tester, jetty-ajp, jetty-java5-threadpool,
 jetty-client, jetty-rewrite-handler, jetty-plus, jetty-annotations