Hi there, If I change the lib/endorsed jar files, what are the risks? I have upgraded those jars in the folder from 5/02/2005 version to 5/15/2006 version resolver.jar serializer.jar xalan.jar xercesImpl.jar xml-apis.jar it seems fine; but want to double check: if those library are changed, is there possibilities the JBoss AS behavior change as also. I did observe some differences between those two versions jar files: some methods are different; some class packages are changed. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4041171#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...