ClassCastException when calling SOAP adapter

Question

Hello,
I created a Web service interface to an ABAP RFC
via XI and a corresponding communication channel
(SOAP/HTTP to a specific message interface with data
types, message types, mappings etc. defined in the
integration repository). Sending SOAP messages
and receiving the correct replies works fine.
However, when I transport the relevant objects
from our test system to the consolidation system
by exporting and then importing via the file system
(all objects of the software component in the integration
repository, all objects of the communication scenario
in the integration directory), the
ClassCastException given below is returned
when sending the same SOAP messages
to the consolidation system. Other SOAP interfaces
work, but the one I imported does not.
Unfortunately, the request neither shows up in
the XmlMonitor nor in MessageMonitoring in the
Runtime workbench, so I do not get a further
indication what actually went wrong.
Questions:
- Has anyone had a similar problem or the same
  error message? If so, what was the cause?
- Does anyone (maybe from SAP) know what exactly
  happens in the mentioned code line where the
  exception is thrown?
- Where could I look to find further information
  about the error?
System information:
- SAP BASE 6.40, XI 3.0 with Service Pack 15
Thanks + Cheers,
  Guido
<?xml version='1.0'?>
<!-- see the documentation -->
<SOAP:Envelope xmlns:SOAP='http://schemas.xmlsoap.org/soap/envelope/'>
  <SOAP:Body>
    <SOAP:Fault>
      <faultcode>SOAP:Server</faultcode>
      <faultstring>Server Error</faultstring>
      <detail>
        <s:SystemError xmlns:s='http://sap.com/xi/WebService/xi2.0'>
          <context>XIAdapter</context>
          <code>ClassCastException</code>
          <text><![CDATA[
java.lang.ClassCastException
     at com.sap.aii.af.mp.ejb.ModuleProcessorBean.process(ModuleProcessorBean.java:227)
     at com.sap.aii.af.mp.processor.ModuleProcessorLocalLocalObjectImpl0.process(ModuleProcessorLocalLocalObjectImpl0.java:103)
     at com.sap.aii.af.mp.soap.web.MessageServlet.callModuleProcessor(MessageServlet.java:159)
     at com.sap.aii.af.mp.soap.web.MessageServlet.doPost(MessageServlet.java:383)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
     at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:95)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:160)
          ]]></text>
        </s:SystemError>
      </detail>
    </SOAP:Fault>
  </SOAP:Body>
</SOAP:Envelope>

Answer 1

Hi,
looking to the stack trace provided by i found this
>>at java.security.AccessController.doPrivileged(Native >>Method)
this means that you have defined assigned users for the business service in configuration directory.
Make sure the client is making the webservice call using that specific user.
cheers,
naveen