Null Pointer Exception While calling Receive Activity

[Dhanush Gopinath <dh...@altair.com>]

Hi,

 

I have a process which is having sequential activities like this -
RECEIVE (start) ->INVOKE->RECEIVE->INVOKE->RECEIVE ->INVOKE ->REPLY.

 

When I start the Process it goes and calls the first invoke and the
process waits for the RECEIVE call to be made. I make a RECEIVE activity
call into the process, but I get this NullPointerException in
AxisServlet. However the Process still continues it process execution,
but eventually fails to reply anything back.

 

The stack trace is as given below.

 

org.apache.axis2.AxisFault: java.lang.NullPointerException

      at
org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:182)

      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(Applica
tionFilterChain.java:290)

      at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:206)

      at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:233)

      at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:191)

      at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:128)

      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:2
86)

      at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:84
5)

      at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(
Http11Protocol.java:583)

      at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)

      at java.lang.Thread.run(Thread.java:619)

Caused by: java.lang.NullPointerException

      at
org.apache.ode.dao.jpa.MessageExchangeDAOImpl.deleteMessages(MessageExch
angeDAOImpl.java:355)

      at
org.apache.ode.dao.jpa.MessageExchangeDAOImpl.release(MessageExchangeDAO
Impl.java:344)

      at
org.apache.ode.bpel.engine.MyRoleMessageExchangeImpl.release(MyRoleMessa
geExchangeImpl.java:189)

      at
org.apache.ode.axis2.ODEService.onAxisMessageExchange(ODEService.java:21
7)

      at
org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(ODEMes
sageReceiver.java:69)

      at
org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(ODEMes
sageReceiver.java:63)

      at
org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessa
geReceiver.java:96)

      at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:145)

      at
org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostReques
t(HTTPTransportUtils.java:275)

      at
org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:120)

Has anyone come across such an issue any time before? If so what is the
cause of this error. Please let me know. I am using Apache ODE 1.3.3
with the patch for ODE 647 on Tomcat 

 

Thanks & Regards

Dhanush Gopinath