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Posted to user@ode.apache.org by Thilina Gunarathne <cs...@gmail.com> on 2007/10/26 19:41:15 UTC
NPE while invoking an external service
Hi all,
I tried to modify the HelloWorld sample to invoke an external service.
The external service was invoked successfully and the response was
received to ODE..
At this point the process fails with a NPE.
PartnerLinkPartnerRoleImpl line 62..
PartnerRoleMessageExchangeImpl createPartnerRoleMex(MessageExchangeDAO mexdao) {
InvocationStyle istyle = mexdao.getInvocationStyle();
......
switch (istyle) {
NPE occurs due to the style being NULL.
Am I doing anything wrong?.. (BPEL & the WSDL docs are attached).
But IMHO the NPE needs be checked and should throw a meaningful
exception.. Also the value for getInvocationStyle() in all of the
MessageExchangeDAO implementations have the possibility to be NULL..
thanks,
Thilina
org.apache.ode.bpel.iapi.BpelEngineException: java.lang.NullPointerException
at org.apache.ode.bpel.engine.BpelServerImpl.getMessageExchange(BpelServerImpl.java:597)
at org.apache.ode.axis2.ExternalService.reply(ExternalService.java:282)
at org.apache.ode.axis2.ExternalService.invoke(ExternalService.java:145)
at org.apache.ode.axis2.MessageExchangeContextImpl.invokePartnerUnreliable(MessageExchangeContextImpl.java:67)
at org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeInMem(PartnerLinkPartnerRoleImpl.java:208)
at org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeIL(PartnerLinkPartnerRoleImpl.java:120)
at org.apache.ode.bpel.engine.BpelProcess.invokePartner(BpelProcess.java:1290)
at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.invoke(BpelRuntimeContextImpl.java:731)
at org.apache.ode.bpel.runtime.INVOKE.run(INVOKE.java:96)
at sun.reflect.GeneratedMethodAccessor57.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:451)
at org.apache.ode.jacob.vpu.JacobVPU.execute(JacobVPU.java:139)
at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.execute(BpelRuntimeContextImpl.java:762)
at org.apache.ode.bpel.engine.BpelProcess.executeCreateInstance(BpelProcess.java:314)
at org.apache.ode.bpel.engine.BpelProcess$2.call(BpelProcess.java:261)
at org.apache.ode.bpel.engine.BpelProcess$2.call(BpelProcess.java:260)
at org.apache.ode.bpel.engine.BpelProcess$ProcessCallable.call(BpelProcess.java:1128)
at org.apache.ode.bpel.engine.BpelInstanceWorker.doInstanceWork(BpelInstanceWorker.java:174)
at org.apache.ode.bpel.engine.BpelInstanceWorker.execInCurrentThread(BpelInstanceWorker.java:108)
at org.apache.ode.bpel.engine.BpelProcess.doInstanceWork(BpelProcess.java:420)
at org.apache.ode.bpel.engine.BpelProcess.invokeProcess(BpelProcess.java:259)
at org.apache.ode.bpel.engine.MyRoleMessageExchangeImpl.doInvoke(MyRoleMessageExchangeImpl.java:132)
at org.apache.ode.bpel.engine.UnreliableMyRoleMessageExchangeImpl$1.call(UnreliableMyRoleMessageExchangeImpl.java:48)
at org.apache.ode.bpel.engine.UnreliableMyRoleMessageExchangeImpl$1.call(UnreliableMyRoleMessageExchangeImpl.java:47)
at org.apache.ode.bpel.engine.BpelProcess$ProcessCallable.call(BpelProcess.java:1128)
at org.apache.ode.bpel.engine.Contexts.execTransaction(Contexts.java:105)
at org.apache.ode.bpel.engine.BpelServerImpl$TransactedCallable.call(BpelServerImpl.java:833)
at org.apache.ode.bpel.engine.BpelServerImpl$ServerCallable.call(BpelServerImpl.java:811)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
at java.util.concurrent.FutureTask.run(FutureTask.java:123)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NullPointerException
at org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.createPartnerRoleMex(PartnerLinkPartnerRoleImpl.java:66)
at org.apache.ode.bpel.engine.BpelProcess.createPartnerRoleMex(BpelProcess.java:889)
at org.apache.ode.bpel.engine.BpelServerImpl$3.call(BpelServerImpl.java:578)
at org.apache.ode.bpel.engine.BpelServerImpl$3.call(BpelServerImpl.java:555)
at org.apache.ode.bpel.engine.BpelServerImpl.getMessageExchange(BpelServerImpl.java:591)
... 34 more
12:58:19,997 ERROR [ExternalService] Error executing reply
transaction; reply will be lost.
org.apache.ode.bpel.iapi.BpelEngineException: java.lang.NullPointerException
at org.apache.ode.bpel.engine.BpelServerImpl.getMessageExchange(BpelServerImpl.java:597)
at org.apache.ode.axis2.ExternalService.reply(ExternalService.java:282)
at org.apache.ode.axis2.ExternalService.invoke(ExternalService.java:145)
at org.apache.ode.axis2.MessageExchangeContextImpl.invokePartnerUnreliable(MessageExchangeContextImpl.java:67)
at org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeInMem(PartnerLinkPartnerRoleImpl.java:208)
at org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeIL(PartnerLinkPartnerRoleImpl.java:120)
at org.apache.ode.bpel.engine.BpelProcess.invokePartner(BpelProcess.java:1290)
at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.invoke(BpelRuntimeContextImpl.java:731)
at org.apache.ode.bpel.runtime.INVOKE.run(INVOKE.java:96)
at sun.reflect.GeneratedMethodAccessor57.invoke(Unknown Source)
--
Thilina Gunarathne - http://thilinag.blogspot.com
Re: NPE while invoking an external service
Posted by Thilina Gunarathne <cs...@gmail.com>.
Hi Alex,
Sorry about that.. I was using the Trunk..I have moved to trunk while
testing my earlier issue with Assign activity, but was under the
impression that I'm using the released version...
This problem is not there in 1.1...
thanks,
Thilina
On 10/26/07, Alex Boisvert <bo...@intalio.com> wrote:
> On 10/26/07, Thilina Gunarathne <cs...@gmail.com> wrote:
> >
> > Hi all,
> > I tried to modify the HelloWorld sample to invoke an external service.
> > The external service was invoked successfully and the response was
> > received to ODE..
> > At this point the process fails with a NPE.
> >
> > PartnerLinkPartnerRoleImpl line 62..
> > PartnerRoleMessageExchangeImpl createPartnerRoleMex(MessageExchangeDAO
> > mexdao) {
> > InvocationStyle istyle = mexdao.getInvocationStyle();
> > ......
> > switch (istyle) {
> >
> > NPE occurs due to the style being NULL.
>
>
> I've created a tracker for this,
> https://issues.apache.org/jira/browse/ODE-205
>
> alex
>
--
Thilina Gunarathne - http://thilinag.blogspot.com
Re: NPE while invoking an external service
Posted by Alex Boisvert <bo...@intalio.com>.
On 10/26/07, Thilina Gunarathne <cs...@gmail.com> wrote:
>
> Hi all,
> I tried to modify the HelloWorld sample to invoke an external service.
> The external service was invoked successfully and the response was
> received to ODE..
> At this point the process fails with a NPE.
>
> PartnerLinkPartnerRoleImpl line 62..
> PartnerRoleMessageExchangeImpl createPartnerRoleMex(MessageExchangeDAO
> mexdao) {
> InvocationStyle istyle = mexdao.getInvocationStyle();
> ......
> switch (istyle) {
>
> NPE occurs due to the style being NULL.
I've created a tracker for this,
https://issues.apache.org/jira/browse/ODE-205
alex
Re: NPE while invoking an external service
Posted by Alex Boisvert <bo...@intalio.com>.
Hi Thilina,
Looks like you're using the -trunk which is currently unstable. I suggest
you try the 1.1
branch<http://svn.apache.org/viewvc/ode/branches/APACHE_ODE_1.1/>(stable)
for your tests.
alex
On 10/26/07, Thilina Gunarathne <cs...@gmail.com> wrote:
>
> Hi all,
> I did some further debugging, and it seems to me that the invoking
> style does not get set in the MessageContextDao except in the case
> where ODE invokes using p2p (process 2 process) style.
>
> According to what I see this style needs to be set inside the
> invokePersisted method of the PartnerLinkPartnerRoleImpl class.
>
> Does anybody has sample where ODE invoke an external service other
> than a process deployed in the same ODE engine.
>
> Thanks,
> Thilina
>
> On 10/26/07, Thilina Gunarathne <cs...@gmail.com> wrote:
> > Hi all,
> > I tried to modify the HelloWorld sample to invoke an external service.
> > The external service was invoked successfully and the response was
> > received to ODE..
> > At this point the process fails with a NPE.
> >
> > PartnerLinkPartnerRoleImpl line 62..
> > PartnerRoleMessageExchangeImpl createPartnerRoleMex(MessageExchangeDAO
> mexdao) {
> > InvocationStyle istyle = mexdao.getInvocationStyle();
> > ......
> > switch (istyle) {
> >
> > NPE occurs due to the style being NULL.
> >
> > Am I doing anything wrong?.. (BPEL & the WSDL docs are attached).
> >
> > But IMHO the NPE needs be checked and should throw a meaningful
> > exception.. Also the value for getInvocationStyle() in all of the
> > MessageExchangeDAO implementations have the possibility to be NULL..
> >
> > thanks,
> > Thilina
> >
> > org.apache.ode.bpel.iapi.BpelEngineException:
> java.lang.NullPointerException
> > at org.apache.ode.bpel.engine.BpelServerImpl.getMessageExchange(
> BpelServerImpl.java:597)
> > at org.apache.ode.axis2.ExternalService.reply(
> ExternalService.java:282)
> > at org.apache.ode.axis2.ExternalService.invoke(
> ExternalService.java:145)
> > at
> org.apache.ode.axis2.MessageExchangeContextImpl.invokePartnerUnreliable(
> MessageExchangeContextImpl.java:67)
> > at
> org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeInMem(
> PartnerLinkPartnerRoleImpl.java:208)
> > at
> org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeIL(
> PartnerLinkPartnerRoleImpl.java:120)
> > at org.apache.ode.bpel.engine.BpelProcess.invokePartner(
> BpelProcess.java:1290)
> > at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.invoke(
> BpelRuntimeContextImpl.java:731)
> > at org.apache.ode.bpel.runtime.INVOKE.run(INVOKE.java:96)
> > at sun.reflect.GeneratedMethodAccessor57.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:451)
> > at org.apache.ode.jacob.vpu.JacobVPU.execute(JacobVPU.java:139)
> > at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.execute(
> BpelRuntimeContextImpl.java:762)
> > at org.apache.ode.bpel.engine.BpelProcess.executeCreateInstance(
> BpelProcess.java:314)
> > at org.apache.ode.bpel.engine.BpelProcess$2.call(
> BpelProcess.java:261)
> > at org.apache.ode.bpel.engine.BpelProcess$2.call(
> BpelProcess.java:260)
> > at org.apache.ode.bpel.engine.BpelProcess$ProcessCallable.call(
> BpelProcess.java:1128)
> > at org.apache.ode.bpel.engine.BpelInstanceWorker.doInstanceWork(
> BpelInstanceWorker.java:174)
> > at
> org.apache.ode.bpel.engine.BpelInstanceWorker.execInCurrentThread(
> BpelInstanceWorker.java:108)
> > at org.apache.ode.bpel.engine.BpelProcess.doInstanceWork(
> BpelProcess.java:420)
> > at org.apache.ode.bpel.engine.BpelProcess.invokeProcess(
> BpelProcess.java:259)
> > at org.apache.ode.bpel.engine.MyRoleMessageExchangeImpl.doInvoke
> (MyRoleMessageExchangeImpl.java:132)
> > at
> org.apache.ode.bpel.engine.UnreliableMyRoleMessageExchangeImpl$1.call(
> UnreliableMyRoleMessageExchangeImpl.java:48)
> > at
> org.apache.ode.bpel.engine.UnreliableMyRoleMessageExchangeImpl$1.call(
> UnreliableMyRoleMessageExchangeImpl.java:47)
> > at org.apache.ode.bpel.engine.BpelProcess$ProcessCallable.call(
> BpelProcess.java:1128)
> > at org.apache.ode.bpel.engine.Contexts.execTransaction(
> Contexts.java:105)
> > at
> org.apache.ode.bpel.engine.BpelServerImpl$TransactedCallable.call(
> BpelServerImpl.java:833)
> > at org.apache.ode.bpel.engine.BpelServerImpl$ServerCallable.call
> (BpelServerImpl.java:811)
> > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java
> :269)
> > at java.util.concurrent.FutureTask.run(FutureTask.java:123)
> > at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(
> ThreadPoolExecutor.java:650)
> > at java.util.concurrent.ThreadPoolExecutor$Worker.run(
> ThreadPoolExecutor.java:675)
> > at java.lang.Thread.run(Thread.java:595)
> > Caused by: java.lang.NullPointerException
> > at
> org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.createPartnerRoleMex
> (PartnerLinkPartnerRoleImpl.java:66)
> > at org.apache.ode.bpel.engine.BpelProcess.createPartnerRoleMex(
> BpelProcess.java:889)
> > at org.apache.ode.bpel.engine.BpelServerImpl$3.call(
> BpelServerImpl.java:578)
> > at org.apache.ode.bpel.engine.BpelServerImpl$3.call(
> BpelServerImpl.java:555)
> > at org.apache.ode.bpel.engine.BpelServerImpl.getMessageExchange(
> BpelServerImpl.java:591)
> > ... 34 more
> > 12:58:19,997 ERROR [ExternalService] Error executing reply
> > transaction; reply will be lost.
> > org.apache.ode.bpel.iapi.BpelEngineException:
> java.lang.NullPointerException
> > at org.apache.ode.bpel.engine.BpelServerImpl.getMessageExchange(
> BpelServerImpl.java:597)
> > at org.apache.ode.axis2.ExternalService.reply(
> ExternalService.java:282)
> > at org.apache.ode.axis2.ExternalService.invoke(
> ExternalService.java:145)
> > at
> org.apache.ode.axis2.MessageExchangeContextImpl.invokePartnerUnreliable(
> MessageExchangeContextImpl.java:67)
> > at
> org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeInMem(
> PartnerLinkPartnerRoleImpl.java:208)
> > at
> org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeIL(
> PartnerLinkPartnerRoleImpl.java:120)
> > at org.apache.ode.bpel.engine.BpelProcess.invokePartner(
> BpelProcess.java:1290)
> > at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.invoke(
> BpelRuntimeContextImpl.java:731)
> > at org.apache.ode.bpel.runtime.INVOKE.run(INVOKE.java:96)
> > at sun.reflect.GeneratedMethodAccessor57.invoke(Unknown Source)
> >
> > --
> > Thilina Gunarathne - http://thilinag.blogspot.com
> >
> >
>
>
> --
> Thilina Gunarathne - http://thilinag.blogspot.com
>
Re: NPE while invoking an external service
Posted by Thilina Gunarathne <cs...@gmail.com>.
Hi all,
I did some further debugging, and it seems to me that the invoking
style does not get set in the MessageContextDao except in the case
where ODE invokes using p2p (process 2 process) style.
According to what I see this style needs to be set inside the
invokePersisted method of the PartnerLinkPartnerRoleImpl class.
Does anybody has sample where ODE invoke an external service other
than a process deployed in the same ODE engine.
Thanks,
Thilina
On 10/26/07, Thilina Gunarathne <cs...@gmail.com> wrote:
> Hi all,
> I tried to modify the HelloWorld sample to invoke an external service.
> The external service was invoked successfully and the response was
> received to ODE..
> At this point the process fails with a NPE.
>
> PartnerLinkPartnerRoleImpl line 62..
> PartnerRoleMessageExchangeImpl createPartnerRoleMex(MessageExchangeDAO mexdao) {
> InvocationStyle istyle = mexdao.getInvocationStyle();
> ......
> switch (istyle) {
>
> NPE occurs due to the style being NULL.
>
> Am I doing anything wrong?.. (BPEL & the WSDL docs are attached).
>
> But IMHO the NPE needs be checked and should throw a meaningful
> exception.. Also the value for getInvocationStyle() in all of the
> MessageExchangeDAO implementations have the possibility to be NULL..
>
> thanks,
> Thilina
>
> org.apache.ode.bpel.iapi.BpelEngineException: java.lang.NullPointerException
> at org.apache.ode.bpel.engine.BpelServerImpl.getMessageExchange(BpelServerImpl.java:597)
> at org.apache.ode.axis2.ExternalService.reply(ExternalService.java:282)
> at org.apache.ode.axis2.ExternalService.invoke(ExternalService.java:145)
> at org.apache.ode.axis2.MessageExchangeContextImpl.invokePartnerUnreliable(MessageExchangeContextImpl.java:67)
> at org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeInMem(PartnerLinkPartnerRoleImpl.java:208)
> at org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeIL(PartnerLinkPartnerRoleImpl.java:120)
> at org.apache.ode.bpel.engine.BpelProcess.invokePartner(BpelProcess.java:1290)
> at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.invoke(BpelRuntimeContextImpl.java:731)
> at org.apache.ode.bpel.runtime.INVOKE.run(INVOKE.java:96)
> at sun.reflect.GeneratedMethodAccessor57.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:451)
> at org.apache.ode.jacob.vpu.JacobVPU.execute(JacobVPU.java:139)
> at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.execute(BpelRuntimeContextImpl.java:762)
> at org.apache.ode.bpel.engine.BpelProcess.executeCreateInstance(BpelProcess.java:314)
> at org.apache.ode.bpel.engine.BpelProcess$2.call(BpelProcess.java:261)
> at org.apache.ode.bpel.engine.BpelProcess$2.call(BpelProcess.java:260)
> at org.apache.ode.bpel.engine.BpelProcess$ProcessCallable.call(BpelProcess.java:1128)
> at org.apache.ode.bpel.engine.BpelInstanceWorker.doInstanceWork(BpelInstanceWorker.java:174)
> at org.apache.ode.bpel.engine.BpelInstanceWorker.execInCurrentThread(BpelInstanceWorker.java:108)
> at org.apache.ode.bpel.engine.BpelProcess.doInstanceWork(BpelProcess.java:420)
> at org.apache.ode.bpel.engine.BpelProcess.invokeProcess(BpelProcess.java:259)
> at org.apache.ode.bpel.engine.MyRoleMessageExchangeImpl.doInvoke(MyRoleMessageExchangeImpl.java:132)
> at org.apache.ode.bpel.engine.UnreliableMyRoleMessageExchangeImpl$1.call(UnreliableMyRoleMessageExchangeImpl.java:48)
> at org.apache.ode.bpel.engine.UnreliableMyRoleMessageExchangeImpl$1.call(UnreliableMyRoleMessageExchangeImpl.java:47)
> at org.apache.ode.bpel.engine.BpelProcess$ProcessCallable.call(BpelProcess.java:1128)
> at org.apache.ode.bpel.engine.Contexts.execTransaction(Contexts.java:105)
> at org.apache.ode.bpel.engine.BpelServerImpl$TransactedCallable.call(BpelServerImpl.java:833)
> at org.apache.ode.bpel.engine.BpelServerImpl$ServerCallable.call(BpelServerImpl.java:811)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:269)
> at java.util.concurrent.FutureTask.run(FutureTask.java:123)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
> at java.lang.Thread.run(Thread.java:595)
> Caused by: java.lang.NullPointerException
> at org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.createPartnerRoleMex(PartnerLinkPartnerRoleImpl.java:66)
> at org.apache.ode.bpel.engine.BpelProcess.createPartnerRoleMex(BpelProcess.java:889)
> at org.apache.ode.bpel.engine.BpelServerImpl$3.call(BpelServerImpl.java:578)
> at org.apache.ode.bpel.engine.BpelServerImpl$3.call(BpelServerImpl.java:555)
> at org.apache.ode.bpel.engine.BpelServerImpl.getMessageExchange(BpelServerImpl.java:591)
> ... 34 more
> 12:58:19,997 ERROR [ExternalService] Error executing reply
> transaction; reply will be lost.
> org.apache.ode.bpel.iapi.BpelEngineException: java.lang.NullPointerException
> at org.apache.ode.bpel.engine.BpelServerImpl.getMessageExchange(BpelServerImpl.java:597)
> at org.apache.ode.axis2.ExternalService.reply(ExternalService.java:282)
> at org.apache.ode.axis2.ExternalService.invoke(ExternalService.java:145)
> at org.apache.ode.axis2.MessageExchangeContextImpl.invokePartnerUnreliable(MessageExchangeContextImpl.java:67)
> at org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeInMem(PartnerLinkPartnerRoleImpl.java:208)
> at org.apache.ode.bpel.engine.PartnerLinkPartnerRoleImpl.invokeIL(PartnerLinkPartnerRoleImpl.java:120)
> at org.apache.ode.bpel.engine.BpelProcess.invokePartner(BpelProcess.java:1290)
> at org.apache.ode.bpel.engine.BpelRuntimeContextImpl.invoke(BpelRuntimeContextImpl.java:731)
> at org.apache.ode.bpel.runtime.INVOKE.run(INVOKE.java:96)
> at sun.reflect.GeneratedMethodAccessor57.invoke(Unknown Source)
>
> --
> Thilina Gunarathne - http://thilinag.blogspot.com
>
>
--
Thilina Gunarathne - http://thilinag.blogspot.com