How do we query a chronicle of Xerces during runtime for an app deployed to JBoss 7.2?

Normally we can query a chronicle of Xerces as documented here controlling
org.apache.xerces.impl.Version.getVersion(). This does not work during
runtime underneath JBoss due to a
ClassNotFoundException:Code:Class.forName(
"org.apache.xerces.impl.Version" )Output:java.lang.ClassNotFoundException:
org.apache.xerces.impl.Version from [Module
"deployment.tep-web-services.war:main" from Service Module
Loader]org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468)org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456)org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120)org.codehaus.groovy.runtime.callsite.CallSiteClassLoader.loadClass(CallSiteClassLoader.java:51)Where
is a Version category located underneath JBoss 7.2?