I can successfully deploy this .war file in JBoss 4.0.x, but not in JBoss 4.2.0 I believe it could be a conflict between built-in JBoss JSF/ADF support and the libraries being included in the .war file. I am currently "mucking" about with the .war file trying to remove libraries and I am getting the application to deploy error-free... but when I try to access a jsp page, I get the same error at that time instead. So not much progress thus far. Tonya View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4054161#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...