I does only appear to happen between portlet apps. Each of my portlet apps declares its own loader in a jboss-app.xml in the web-inf directory: | <jboss-app> | <app-name>portlet-app-one</app-name> | <loader-repository> | seam.jboss.org:loader=portlet-app-one | </loader-repository> | </jboss-app> I will try moving this to the ear meta-inf directory. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3996476#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...