ClassCastException: java.net.URI cannot be cast to org.xml.sax.InputSource

Regression in the JBossWS Native testsuite from EAP5 CR4

Tests:
org.jboss.test.ws.jaxws.samples.context.WebServiceContextEJBTestCase.testMessageContextProperties
org.jboss.test.ws.jaxws.samples.context.WebServiceContextJSETestCase.testMessageContextProperties
org.jboss.test.ws.jaxws.smoke.tools.WSRunClientTestCase.test
http://hudson.qa.jboss.com/hudson/view/EAP5/job/eap5-ws-native

Error Message

java.lang.ClassCastException: java.net.URI cannot be cast to org.xml.sax.InputSource

Stacktrace

javax.xml.ws.soap.SOAPFaultException: java.lang.ClassCastException: java.net.URI cannot be cast to org.xml.sax.InputSource
at org.jboss.ws.core.jaxws.SOAPFaultHelperJAXWS.getSOAPFaultException(SOAPFaultHelperJAXWS.java:84)
at org.jboss.ws.core.jaxws.binding.SOAP11BindingJAXWS.throwFaultException(SOAP11BindingJAXWS.java:107)
at org.jboss.ws.core.CommonSOAPBinding.unbindResponseMessage(CommonSOAPBinding.java:558)
at org.jboss.ws.core.CommonClient.invoke(CommonClient.java:373)
at org.jboss.ws.core.jaxws.client.ClientImpl.invoke(ClientImpl.java:231)
at org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:162)
at org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:148)
at $Proxy93.testMessageContextProperties(Unknown Source)
at org.jboss.test.ws.jaxws.samples.context.WebServiceContextEJBTestCase.testMessageContextProperties(WebServiceContextEJBTestCase.java:86)