A 3rd party application (packaged in a war file) that I'm using needs to use a the version of Xerces that it shipped with. JDK 1.4 has Crimson built in and JBoss 3.2 and 3.0.7 come with Xerces. When I start up JBoss with and try using the application, I'm getting errors related to Crimson.

How to I reconfigure the classloading for my application so that it uses xercesImpl.jar in the war file? Is there a way to make it use the xercesImpl.jar shipped with JBoss instead of the default JDK 1.4 parser?