I deploy a webapp on two different containers (Tomcat and Jetty), but their default servlets for serving the static content have a different way of handling the URL structur
Use org.mortbay.jetty.handler.ContextHandler. You don't need additional components like StaticServlet.
At the jetty home,
$ cd contexts
$ cp javadoc.xml static.xml
$ vi static.xml
...
/static
/static/
max-age=3600,public
Set the value of contextPath with your URL prefix, and set the value of resourceBase as the file path of the static content.
It worked for me.