Hi Jim,
This occurs because the engine is trying to send an empty message, which
can't really be sent properly. I'll improve the error message but you should
look for another error or fault before that which would explain why it's
sending something empty.
Thanks,
Matthieu
On 11/10/06, Jim Alateras <[EMAIL PROTECTED]> wrote:
I get the following NullPointerException when executing a BPEL process,
which calls another BPEL process in the same deploy unit.
Any idea?
elementName={http://www.example.org/goodbyeWorld/wsdl/200611}GoodbyeOutput
channel=InvokeResponseChannel#26)
DEBUG - BpelRuntimeContextImpl.invoke(667) | INVOKE PARTNER (SEP):
sessionId=null partnerSessionId=null
DEBUG - MessageExchangeImpl.setPortOp(171) | Mex[7].setPortOp(PortType:
name={http://www.example.org/goodbyeWorld/wsdl/200611}Goodby
eWorldPT
Operation: name=goodbye
style=REQUEST_RESPONSE,1
Input: name=null
Message:
name={
http://www.example.org/goodbyeWorld/wsdl/200611}GoodbyeRequestMessage
Part: name=inMsg
elementName={http://www.example.org/goodbyeWorld/wsdl/200611}GoodbyeInput
Output: name=null
Message:
name={
http://www.example.org/goodbyeWorld/wsdl/200611}GoodbyeResponseMessage
Part: name=outMsg
elementName={
http://www.example.org/goodbyeWorld/wsdl/200611}GoodbyeOutput,Operation:
name=goodbye
style=REQUEST_RESPONSE,1
Input: name=null
Message:
name={
http://www.example.org/goodbyeWorld/wsdl/200611}GoodbyeRequestMessage
Part: name=inMsg
elementName={http://www.example.org/goodbyeWorld/wsdl/200611}GoodbyeInput
Output: name=null
Message:
name={
http://www.example.org/goodbyeWorld/wsdl/200611}GoodbyeResponseMessage
Part: name=outMsg
elementName={http://www.example.org/goodbyeWorld/wsdl/200611}GoodbyeOutput
)
DEBUG - MessageExchangeContextImpl.invokePartner(47) | Invoking a
partner operation: goodbye
DEBUG - MessageExchangeContextImpl.invokePartner(51) | The service to
invoke is the external service org.apache.ode.axis2.ExternalSe
[EMAIL PROTECTED]
ERROR - JacobVPU$JacobThreadImpl.run(479) | Method "run" in class
"org.apache.ode.bpel.runtime.INVOKE" threw an unexpected exception
.
java.lang.NullPointerException: elem parameter must not be null!
at
org.apache.ode.utils.DOMUtils.getFirstChildElement(DOMUtils.java:215)
at org.apache.ode.axis2.util.SOAPUtils.wrap(SOAPUtils.java:74)
at
org.apache.ode.axis2.ExternalService.invoke(ExternalService.java:78)
at
org.apache.ode.axis2.MessageExchangeContextImpl.invokePartner(
MessageExchangeContextImpl.java:52)
at
org.apache.ode.bpel.engine.BpelRuntimeContextImpl.invoke(
BpelRuntimeContextImpl.java:690)
at org.apache.ode.bpel.runtime.INVOKE.run(INVOKE.java:95)
at sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(
DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.ode.jacob.vpu.JacobVPU$JacobThreadImpl.run(JacobVPU.java:467)
at org.apache.ode.jacob.vpu.JacobVPU.execute(JacobVPU.java:148)
at
org.apache.ode.bpel.engine.BpelRuntimeContextImpl.execute(
BpelRuntimeContextImpl.java:730)
at
org.apache.ode.bpel.engine.BpelProcess$PartnerLinkMyRoleImpl.invokeMyRole(
BpelProcess.java:467)
at
org.apache.ode.bpel.engine.BpelProcess.invokeProcess(BpelProcess.java:170)
at
org.apache.ode.bpel.engine.MyRoleMessageExchangeImpl.invoke(
MyRoleMessageExchangeImpl.java:114)
at
org.apache.ode.axis2.ODEService.onAxisMessageExchange(ODEService.java:121)
at
org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(
ODEMessageReceiver.java:78)
at
org.apache.ode.axis2.hooks.ODEMessageReceiver.receive(
ODEMessageReceiver.java:53)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java
:454)
at
org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(
HTTPTransportUtils.java:284)
at
org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:136)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(
ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(
StandardWrapperValve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(
StandardContextValve.java:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(
StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java
:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection
(Http11BaseProtocol.java:664)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(
PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(
LeaderFollowerWorkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(
ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
java.lang.RuntimeException: java.lang.NullPointerException: elem
parameter must not be null!
at
org.apache.ode.jacob.vpu.JacobVPU$JacobThreadImpl.run(JacobVPU.java:480)
at org.apache.ode.jacob.vpu.JacobVPU.execute(JacobVPU.java:148)
at
org.apache.ode.bpel.engine.BpelRuntimeContextImpl.execute(
BpelRuntimeContextImpl.java:730)
at
org.apache.ode.bpel.engine.BpelProcess$PartnerLinkMyRoleImpl.invokeMyRole(
BpelProcess.java:467)
at
org.apache.ode.bpel.engine.BpelProcess.invokeProcess(BpelProcess.java:170)
at
org.apache.ode.bpel.engine.MyRoleMessageExchangeImpl.invoke(
MyRoleMessageExchangeImpl.java:114)
at
org.apache.ode.axis2.ODEService.onAxisMessageExchange(ODEService.java:121)
at
org.apache.ode.axis2.hooks.ODEMessageReceiver.invokeBusinessLogic(
ODEMessageReceiver.java:78)
at
org.apache.ode.axis2.hooks.ODEMessageReceiver.receive(
ODEMessageReceiver.java:53)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java
:454)
at
org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(
HTTPTransportUtils.java:284)
at
org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:136)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
ApplicationFilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(
ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(
StandardWrapperValve.java:213)
at
org.apache.catalina.core.StandardContextValve.invoke(
StandardContextValve.java:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(
StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java
:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection
(Http11BaseProtocol.java:664)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(
PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(
LeaderFollowerWorkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(
ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NullPointerException: elem parameter must not be
null!
at
org.apache.ode.utils.DOMUtils.getFirstChildElement(DOMUtils.java:215)
at org.apache.ode.axis2.util.SOAPUtils.wrap(SOAPUtils.java:74)
at
org.apache.ode.axis2.ExternalService.invoke(ExternalService.java:78)
at
org.apache.ode.axis2.MessageExchangeContextImpl.invokePartner(
MessageExchangeContextImpl.java:52)
at
org.apache.ode.bpel.engine.BpelRuntimeContextImpl.invoke(
BpelRuntimeContextImpl.java:690)
at org.apache.ode.bpel.runtime.INVOKE.run(INVOKE.java:95)
at sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(
DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.ode.jacob.vpu.JacobVPU$JacobThreadImpl.run(JacobVPU.java:467)
... 27 more
ERROR - ODEService.onAxisMessageExchange(140) | Rolling back ODE MEX
{MyRoleMex#6 [Client -8tfxur6la2dgepv92lo7nu] calling {http://w
ww.example.org/helloWorld/wsdl/200611}HelloWorldService.hello(...)}
DEBUG - ODEService.onAxisMessageExchange(167) | Handling response for
MEX {MyRoleMex#6 [Client -8tfxur6la2dgepv92lo7nu] calling {htt
p://www.example.org/helloWorld/wsdl/200611}HelloWorldService.hello(...)}
DEBUG - ODEService.onResponse(237) | Received response message <?xml
version="1.0" encoding="UTF-8"?>
<HelloOutput xmlns="http://www.example.org/helloWorld/wsdl/200611";
xmlns:twsdl="http://www.example.org/helloWorld/wsdl/200611";>
<twsdl:out>Hello Jimbo</twsdl:out>
</HelloOutput>
cheers
</jima>
