What is a good JVM based web framework for general use?

I am building some software using Clojure as a backend, and I'd like to use a JVM based solution for the front-end.

I am open to any of the frameworks & langua开发者_StackOverflow中文版ges out there.

I know about Compojure / Webjure / Ring, but I feel like there may be more mature options. Thanks!

For JVM languages other than Java there's at least:

• JRuby (Ruby on the JVM) which runs the popular Rails framework;
• Scala and Lift;
• Jython (Python on the JVM) and Django.
• Groovy and Grails;

Java itself has quite a few frameworks, none of which stands out from the rest yet. Some contenders include Java Server Faces, Apache Wicket, JBoss Seam, Spring MVC, and Apache Struts 2.