User development, A new message was posted in the thread "[beginner] Deploying a ear file under JBoss AS 5": http://community.jboss.org/message/519288#519288 Author : Peter Johnson Profile : http://community.jboss.org/people/peterj Message: -------------------------------------------------------------- This extra error message helps:   JBoss AS 5 is striucter whne it comes to following the web.xml file layout thatn what AS 4.x was. The issue is that you have the servlet-name and url-pattern in the wriong order; it should be:   <servlet-mapping>     <servlet-name>HelloWorld</servlet-name>     <url-pattern>/servlet/HelloWorld</url-pattern> </servlet-mapping> -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/519288#519288