XTS Demo: ClassNotFoundException: com.sun.org.apache.xerces.internal.dom.DocumentImpl

17:11:47,459 WARN  [org.jboss.modules] (http-localhost-127.0.0.1-8080-7) Failed to define class com.sun.xml.messaging.saaj.soap.SOAPDocumentImpl in Module "com.sun.xml.messaging.saaj:main" from local module loader @23394894 (roots: /home/paul/dev/jboss-as.2/build/target/jboss-as-7.1.0.Alpha2-SNAPSHOT/modules): java.lang.LinkageError: Failed to link com/sun/xml/messaging/saaj/soap/SOAPDocumentImpl (Module "com.sun.xml.messaging.saaj:main" from local module loader @23394894 (roots: /home/paul/dev/jboss-as.2/build/target/jboss-as-7.1.0.Alpha2-SNAPSHOT/modules))
	at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:416)
	at org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:260)
	at org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:73)
	at org.jboss.modules.Module.loadModuleClass(Module.java:500)
	at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:182)
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:485)
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:444)
	at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:421)
	at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:143)
	at com.sun.xml.messaging.saaj.soap.SOAPPartImpl.<init>(SOAPPartImpl.java:119)
	at com.sun.xml.messaging.saaj.soap.ver1_1.SOAPPart1_1Impl.<init>(SOAPPart1_1Impl.java:89)
	at com.sun.xml.messaging.saaj.soap.ver1_1.Message1_1Impl.getSOAPPart(Message1_1Impl.java:109)
	at org.apache.cxf.binding.soap.saaj.SAAJInInterceptor.handleMessage(SAAJInInterceptor.java:185) [cxf-rt-bindings-soap-2.4.2.jar:2.4.2]
	at org.apache.cxf.jaxws.handler.soap.SOAPMessageContextImpl.getMessage(SOAPMessageContextImpl.java:78) [cxf-rt-frontend-jaxws-2.4.2.jar:2.4.2]
	at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.createProtocolMessageContext(SOAPHandlerInterceptor.java:256) [cxf-rt-frontend-jaxws-2.4.2.jar:2.4.2]
	at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.handleMessageInternal(SOAPHandlerInterceptor.java:160) [cxf-rt-frontend-jaxws-2.4.2.jar:2.4.2]
	at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.handleMessage(SOAPHandlerInterceptor.java:123) [cxf-rt-frontend-jaxws-2.4.2.jar:2.4.2]
	at org.apache.cxf.jaxws.handler.soap.SOAPHandlerInterceptor.handleMessage(SOAPHandlerInterceptor.java:70) [cxf-rt-frontend-jaxws-2.4.2.jar:2.4.2]
	at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:263) [cxf-api-2.4.2.jar:2.4.2]
	at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121) [cxf-rt-core-2.4.2.jar:2.4.2]
	at org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:206) [cxf-rt-transports-http-2.4.2.jar:2.4.2]
	at org.jboss.wsf.stack.cxf.RequestHandlerImpl.handleHttpRequest(RequestHandlerImpl.java:91)
	at org.jboss.wsf.stack.cxf.transport.ServletHelper.callRequestHandler(ServletHelper.java:174)
	at org.jboss.wsf.stack.cxf.CXFServletExt.invoke(CXFServletExt.java:87)
	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.handleRequest(AbstractHTTPServlet.java:184) [cxf-rt-transports-http-2.4.2.jar:2.4.2]
	at org.apache.cxf.transport.servlet.AbstractHTTPServlet.doPost(AbstractHTTPServlet.java:107) [cxf-rt-transports-http-2.4.2.jar:2.4.2]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
	at org.jboss.wsf.stack.cxf.CXFServletExt.service(CXFServletExt.java:135)
	at org.jboss.wsf.spi.deployment.WSFServlet.service(WSFServlet.java:140)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:670)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952)
	at java.lang.Thread.run(Thread.java:662) [:1.6.0_27]
Caused by: java.lang.NoClassDefFoundError: com/sun/org/apache/xerces/internal/dom/DocumentImpl
	at java.lang.ClassLoader.defineClass1(Native Method) [:1.6.0_27]
	at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631) [:1.6.0_27]
	at java.lang.ClassLoader.defineClass(ClassLoader.java:615) [:1.6.0_27]
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141) [:1.6.0_27]
	at org.jboss.modules.ModuleClassLoader.doDefineOrLoadClass(ModuleClassLoader.java:330)
	at org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:411)
	... 41 more
Caused by: java.lang.ClassNotFoundException: com.sun.org.apache.xerces.internal.dom.DocumentImpl from [Module "com.sun.xml.messaging.saaj:main" from local module loader @23394894 (roots: /home/paul/dev/jboss-as.2/build/target/jboss-as-7.1.0.Alpha2-SNAPSHOT/modules)]
	at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:485)
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:444)
	at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:444)
	at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:421)
	at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:143)
	... 47 more