"yesudeep" wrote : Right. I've followed the instructions given here to attempt to resolve | that conflict: | | http://grails.codehaus.org/FAQ | | The application works very well by itself on JBoss AS 4.0.5.GA. | | Regards, | Yesudeep. | [/url] I'm glad you found that useful. I've been going around a variety of open source projects and making sure they are drop in compatible with the application server. Took me a while to resolve the stuff for grails specifically. Post the code (or the at least the gist of it) to your portlet and I will take a look at it. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4024088#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...