Packaging a Grails app onto a JavaEE Project

Hello
        We're starting a new Java EE Application and among many modules,  
there will be a Grails based web application. We created a new Java EE  
Project on Netbeans with our EJBs and then a new Grails project.  
Unfortunately, we didn't find out how to add the grails .war file to  
the .ear package (main project). Maybe we'll need some ant-hacking.

Any ideas ?

Thanks in advance

Guilherme Barile