[rules-users] Getting NullPointer Exception while sending an response back from Guvnor using web services

[Vignesh]

Hi,

I have defined a set of rules using DSL and corresponding rules in Guvnor
and i have tested the same using a standalone code which is working fine.
But when i tried invoking the same from a webservice by including this
guvnor project as a JAR Im getting a NullPointerException while sending the
response back from Guvnor to the web service client, 

below is the exception stack i got in server side,

ERROR - AxisServlet.doPost(172) |
java.lang.NullPointerException
        at
org.apache.axis2.clustering.context.DefaultContextManager.updateContexts(DefaultContextManager.java:81)
        at
org.apache.axis2.clustering.context.Replicator.replicate(Replicator.java:81)
        at
org.apache.axis2.receivers.AbstractMessageReceiver.replicateState(AbstractMessageReceiver.java:71)
        at
org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:41)
        at
org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:100)
        at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:176)
        at
org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275)
        at
org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:133)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
        at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
        at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process
Http11Protocol.java:588)
        at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:595)

and the below is the exception stack in client side,

org.apache.axis2.AxisFault: java.lang.NullPointerException
	at
org.apache.axis2.util.Utils.getInboundFaultFromMessageContext(Utils.java:512)
	at
org.apache.axis2.description.OutInAxisOperationClient.handleResponse(OutInAxisOperation.java:370)
	at
org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:416)
	at
org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:228)
	at
org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
	at org.tempuri.Service1Stub.CheckEntitlement(Service1Stub.java:740)
	at ws.client.testClient.main(testClient.java:73)

If any one has faced similar issue and fixed the same, please help me out it
resolving the same or any pointers for fixing this issue would be of great
helpful.

Thanks,
Vignesh
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