We are trying to access SAML-secured service hosted on WSO2 ESB via unsecure proxy-service. We use WSO2 Identity Server as a STS engine, STS is secured using UserName token service.
While requesting STS service for Token we are getting the following exception:
org.apache.axis2.AxisFault: Message Receiver not found for AxisOperation: requestSecurityToken
[2015-06-20 15:16:05,846] ERROR - Fault processing response message through Axis2 {org.apache.synapse.transport.passthru.ClientWorker} org.apache.axis2.AxisFault: Message Receiver not found for AxisOperation: requestSecurityToken at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:176) at org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:225) at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)
Policy used for secured service and RequestTokenResponse from WSO2IS are listed below. MEXService which is mentioned in the policy is a proxy service used for returning WS-Policy for STS service.
Policy: http://pastebin.com/qgSqe01n
RequestTokenServiceResponse: http://pastebin.com/WXeMKFtm