Resin And Groovy

Is anyone successfully using Groovy with Resin ?  
What does your resin.conf look like ?

This is on the resin website, but it doesn't work for me in 3.1.5.
When it gets to a groovy file the compilation just stops or times out.


resin.conf
  <web-app-default>
     <class-loader>
       <compiling-loader path="WEB-INF/classes"
                         compiler="groovyc"
                         source-extension=".groovy"/>
      </class-loader>
  </web-app-default>