I have a message-driven bean that attempts to make an HTTP connection to a servlet running under the same JBoss/Catalina server (v2.4.4/4.0) It responds with the error:
[INFO,EmbeddedCatalinaServiceSX] StandardHost[localhost]: MAPPING configuration error for request URI
I think my "web.xml" is OK, because I can use the same code to connect to the same URL from within a JSP page, with no problems.