Netbeans 6.5 + Grails

I'm not pleased with the apparent behavior of NetBeans 6.5 when creating a new Grails domain class. I'm unable to create a domain class anywhere other than the default package; the dialog keeps asking for a "valid class name":



This name works fine for creating a Groovy class, just not a Grails domain class. So, why won't the Grails support allow it?
 

UPDATE (2009-05-08): This seems to be straightened out in NetBeans 6.7 (beta).