Unable to deploy my application on JBoss 5.1

[Guy Roth]

My application worked fine on JBoss 4.2.3.
I am now trying to deploy it on Jboss 5.1 that also uses java 5.

during deployment I get the error:
Caused by: org.jboss.xb.binding.JBossXBException: Failed to create a new SAX parser
Caused by: java.lang.ClassCastException: org.apache.xerces.parsers.XML11Configuration

I first try to isolate my application by adding the jboess-web.xml to my web-inf/lib that conain this:

<jboss-web>
 <class-loading java2ClassLoadingCompliance="false">
 <loader-repository>
 seam.jboss.org:loader=jboss-seam-groovybooking
 <loader-repository-config>java2ParentDelegation=false</loader-repository-config>
 </loader-repository>
 </class-loading>
</jboss-web>

It didn't help so I tried to add to jboss-5.1.0.GA\server\standard\lib the version of jars that are used by my applications:
xalan.jar, xerces.jar, xercesImpl.jar

those changes didn't change a bit. I still get the same error on server.log

What do I do wrong?

[Jaikiran Pai]

See this

[Guy Roth]

It worked.
So apperenly isolation won't work here due to a know bug of JBoss - Great...