Caused by: java.lang.ClassCastException: org.jboss.ws.core.soap.TextImpl
at org.jboss.ws.core.soap.SOAPBodyImpl.extractContentAsDocument(SOAPBodyImpl.java:243)
at org.jboss.test.ws.jaxws.jbws2319.SOAPHandler.handleInbound(SOAPHandler.java:63)
at org.jboss.wsf.common.handler.GenericHandler.handleMessage(GenericHandler.java:53)
at org.jboss.ws.core.jaxws.handler.HandlerChainExecutor.handleMessage(HandlerChainExecutor.java:293)
at org.jboss.ws.core.jaxws.handler.HandlerChainExecutor.handleMessage(HandlerChainExecutor.java:138)
... 28 more

In addition to this 'extractContentAsDocument()' was not expanding the content to DOM so the returned document had most of the content missing, the fix and test case also addresses this.