Problems implementing java jdbc

Hi, i'm having some issues implementing the java jdbc with a grails-app. Grails is a framework that runs on the jvm, allowing you to write all your code in java if you want. I'm using exactly the code you provide on your web page but it isn't recognizing a proper driver to connect to monet at runtime. I also tried to search some repo that provides a plugin or extension that allows me to use but i get the same error (the only one i found was www.clojars.com/monetdb), is there any example of a driver implementation you can provide or any forum to forward this? Thanks in advice