Friday, August 03, 2012

SOA interoperability - .NET WCF from Java

Recently, one of our teams was struggling to integrate a Java application with a .NET WCF service. The exception that was thrown on the Java side was a SOAPFault as shown below:

SOAPFaultException: The message with Action 'https://tempService:48493/VirtualTechnician/AcceptVehicleTermsOfService' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None). 

After a lot of debugging using SOAPUI and WireShark, we found out that the problem was not in the SOAP message, but in the HTTP header. The SOAP Action HTTP header needs to be set in the HTTP Post Request.

On JAX-WS, it can be done with the following code snippet:

BindingProvider bp = (BindingProvider) smDispatch;
            bp.getRequestContext().put(BindingProvider.SESSION_MAINTAIN_PROPERTY, Boolean.TRUE);
            bp.getRequestContext().put(BindingProvider.SOAPACTION_USE_PROPERTY, Boolean.TRUE);
            bp.getRequestContext().put(BindingProvider.SOAPACTION_URI_PROPERTY, "");// Correct SOAP Action

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