DOM3 validation..

Hi,
    Are there any works under way to implement DOM3 validation? I would like
to do some work with guided xml editors.. I presume the following code will
fail at the moment..

DOMImplementation impl = DOMImplementationRegistry.getDOMImplementation("XML
1.0 Validation 3.0");
if (impl == null || !impl.hasFeature("Validation", "3.0") {
 throw new Exception("DOM Level 3 Validation not supported");
}


Regards,
Damon.