[rules-users] Process Persistence (JPA) and the WSHumanTaskHandler

[Mauricio Salatino]

Can you paste the code used to "enabling the JPA persistence"?

On Sun, Aug 9, 2009 at 4:35 PM, SBalakrishnan
<Sanjay.Balakrishnan at fnis.com>wrote:

>
> Hi,
>
> I am new to drools flow and have the question below.
>
> After enabling persisentence (JPA) on the process side and
> using the out of the box WSHumanTaskHandler.
>
> Ran into a java.lang.NullPointerException on completing
> the Human Task (used the Eclipse Human Task view to do it)
>
> [2009:08:221 14:08:765:exception] Uncaught exception on client
> java.lang.NullPointerException
>        at
>
> org.drools.persistence.processinstance.JPAWorkItemManager.completeWorkItem(JPAWorkItemManager.java:83)
>        at
>
> org.drools.process.workitem.wsht.WSHumanTaskHandler$GetCompletedTaskResponseHandler.execute(WSHumanTaskHandler.java:282)
>        at
>
> org.drools.task.service.TaskClientHandler.messageReceived(TaskClientHandler.java:67)
>        at
>
> org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:752)
>        at
>
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:414)
>        at
>
> org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:49)
>        at
>
> org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:832)
>        at
>
> org.apache.mina.filter.codec.ProtocolCodecFilter$ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:379)
>        at
>
> org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:173)
>        at
>
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:414)
>        at
>
> org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:49)
>        at
>
> org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:832)
>        at
>
> org.apache.mina.core.filterchain.DefaultIoFilterChain$HeadFilter.messageReceived(DefaultIoFilterChain.java:616)
>        at
>
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:414)
>        at
>
> org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(DefaultIoFilterChain.java:408)
>        at
>
> org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollingIoProcessor.java:578)
>        at
>
> org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:540)
>        at
>
> org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPollingIoProcessor.java:532)
>        at
>
> org.apache.mina.core.polling.AbstractPollingIoProcessor.access$400(AbstractPollingIoProcessor.java:58)
>        at
>
> org.apache.mina.core.polling.AbstractPollingIoProcessor$Worker.run(AbstractPollingIoProcessor.java:857)
>        at
>
> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
> Source)
>        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
> Source)
>        at java.lang.Thread.run(Unknown Source)
>
>
>
> Am I missing something or does the WSHumanTaskHander not support
> the above ?
>
>
> Note:-
> Was able to get these pieces working when  process was
> not using JPA persistence.
>
> Thanks
> Sanjay
> --
> View this message in context:
> http://www.nabble.com/Process-Persistence-%28JPA%29-and-the-WSHumanTaskHandler-tp24890353p24890353.html
> Sent from the drools - user mailing list archive at Nabble.com.
>
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>



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