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 -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Getting-NullPointer-E... Sent from the Drools - User mailing list archive at Nabble.com.