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Search for 'Log4j usage in JBoss", since we handle this a bit differently than Tomcat.
Or use the latest AS6 version, which fixes some of these issues: JBoss logger instance vs. user custom instance.
(btw: AS6.0.0.GA is just about to be released ;-)
Caused by: java.lang.ClassCastException: org.apache.xerces.jaxp.SAXParserFactoryImpl cannot be cast to javax.xml.parsers.SAXParserFactory
I think you have two or more copies of the same class (or jar). I have lost a goldmine of my JBoss error/solution log to a crash so I think! check that you are not including xercesImpl.jar (and maybe xalan.jar) in your deployment file. They are already in JBoss. The presence of duplicate xercesImpl.jar can cause one a terrible headache!
So true .i have already been through that.
thnks for the help.