"thomas.heute(a)jboss.com" wrote : Make sure that: | | ch.softcomponent.bg.MyPortlet implements javax.portlet.Portlet (or extends javax.portlet.GenericPortlet) | | Also make sure to *not* include the jsr168 api jar in your webapp since it's already part of the portal | I tried with both portlet-api-1.0.jar and JBoss' portlet-api-lib.jar, included in my war... But didn't think to not include them... Thus I just removed the library of the war and... it worked :-) Thomas, faudra que je vous paie un verre à la prochaine fête des vendanges :-) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4120768#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...