Because you did not post your portlet-instances.xml file and portlet.xml file, I can only guess, but I would say that in portlet-instances.xml you have: <instance> | <instance-id>PreventionsInstance</instance-id> | <portlet-ref>PreventionPortlet.preventions</portlet-ref> | </instance> while in portal.xml you have: <portlet-name>PreventionPortlet</portlet-name> You should have instead: <instance> | <instance-id>PreventionsInstance</instance-id> | <portlet-ref>PreventionPortlet</portlet-ref> | </instance> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4143224#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...