SOAP to IDOC not working

Hi All,

We are still not able to make SOAP to IDOC scenario working. I have set Asynchronous in  Sender "Service Interface" and set "Exactly Once" in sender soap communication channel. I got WSDL from sender agreement and sent to my java team. And I asked them to use URL  http://<hostname>:<port>/ XISOAPAdapter/MessageServlet?channel=<party>:<service>:<channel>. But PI always get error saying "Only asynchronous processing supported for IDoc adapter outbound processg". I see in the error log,  "QualityOfService has been set back to BestEffort and ProcessingMode has been set to synchronous. When I test using SoapUI and using URL "

http://server:host/sap/xi/engine?type=entry&version=3.0&ProcessindMode=Asynchronous&QualityOfService=ExactlyOnce

&Sender.Service=BS_XXX&Interface=http%3A%2F%2Fsoapadapter_SOAPtoIDoc%5EMI_XXX." . It seems to be working. But our Java team could not generate a web service client based on my wsdl and even changed end point url to "

http://server:host/sap/xi/engine?type=entry&version=3.0&ProcessindMode=Asynchronous&QualityOfService=ExactlyOnce

&Sender.Service=BS_XXX&Interface=http%3A%2F%2Fsoapadapter_SOAPtoIDoc%5EMI_XXX.".  Anyone has any idea? If anyone could provide this kind of sample asynchronous web service client, would be great appreciate.

Thanks a lot!

Charles