I'm using Jboss 4.05 with WS 1.20ga I have a service that appears to be deploying successfully and I can see it quite clearly from my http://localhost:8080/jbossws url. After using wsconsume to produce the client side objects (from the WSDL created by wsprovide), I get the following when I try to run my unit test: javax.xml.ws.WebServiceException: java.lang.NoSuchMethodError: javax.xml.soap.MessageFactory.newInstance(Ljava/lang/String;)Ljavax/xml/soap/MessageFactory; | at com.sun.xml.ws.protocol.soap.client.SOAPMessageDispatcher.doSend(SOAPMessageDispatcher.java:296) | at com.sun.xml.ws.protocol.soap.client.SOAPMessageDispatcher.send(SOAPMessageDispatcher.java:153) | at com.sun.xml.ws.encoding.soap.internal.DelegateBase.send(DelegateBase.java:85) | at com.sun.xml.ws.client.EndpointIFInvocationHandler.implementSEIMethod(EndpointIFInvocationHandler.java:176) | at com.sun.xml.ws.client.EndpointIFInvocationHandler.invoke(EndpointIFInvocationHandler.java:105) | at $Proxy15.getAssetChanges(Unknown Source) | at myco.tests.TestAssetWS.testWS(TestAssetWS.java:38) My first thoughts ran to SAAJ version compatibility beging as that appears to be where this stuff is going on. I've tried placing the jwsdp-2.0 version ahead of jboss-saaj.jar and the other way round but the same error. FWIW, my invocation code looks like this: | AssetService service = new AssetService(new URL("http://chma_mikehpc:8080/ws?wsdl"), new QName("http://myco.com/integration/asset/theasset";, "TheAssetData")); | Asset port = service.getPort(Asset.class); | TheAssetData result = port.getAssetChanges(99); | assertNotNull (result); | The exception is being thrown during port.getAssetChanges() I'm sure this is going to be a simple classpath issue, but, where to next! Pointers anyone? tia m View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4025661#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...