CAS Server returning "Error -26612: HTTP Status-Code=500"

Hi All,

I am trying to record a web application (using HTTP/HTTPS protocol) which uses single sign on feature of CAS Server

Just to brief,the CAS server returns the ticket string to client as a response to request for authentication.

I tried to co-relate the ticket string but it did not work. Every time I am getting following error :

Error -26612: HTTP Status-Code=500 (Request processing failed; nested exception is org.springframework.webflow.engine.ActionExecutionException: Exception thrown executing [AnnotatedAction@ca6cea targetAction = org.jasig.cas.web.flow.GatewayRequestCheckAction@1b493c6, attributes = map[[empty]]] in state 'gatewayRequestCheck' of flow 'login-webflow' -- action execution attributes were 'map[[empty]]'; nested exception is java.lang.NullPointerException) for "">casserver:443/.../login" [MsgId: MERR-26612]

It would be much appreciated if you can help on how to handle CAS server in web applications for Vugen scripting.