14/04/23 08:27:34 ERROR nhttp.ServerWorker: Error processing POST request
org.apache.axis2.AxisFault
	at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
	at org.apache.axis2.AxisFault.makeFault(AxisFault.java:419)
	at org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver.invokeBusinessLogic(RawXMLINOnlyMessageReceiver.java:94)
	at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110)
	at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
	at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172)
	at org.apache.synapse.transport.nhttp.ServerWorker.processEntityEnclosingMethod(ServerWorker.java:459)
	at org.apache.synapse.transport.nhttp.ServerWorker.run(ServerWorker.java:279)
	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:744)
Caused by: java.lang.NullPointerException
	at orderProcessiongService.OrderProcessingService.addExpenditure(OrderProcessingService.java:34)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.axis2.receivers.RawXMLINOnlyMessageReceiver.invokeBusinessLogic(RawXMLINOnlyMessageReceiver.java:90)
	... 9 more