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Re: A question about rule task in jBPM5
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created by <a href="http://community.jboss.org/people/mbraud">Maïté Braud</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/637945#637945">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi Esteban,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks for the quick feedback, I'm not sure how much my problem has to do with fireUntilHalt().</p><p>I was replying to the post of <a class="jive-link-profile-small" href="http://community.jboss.org/people/dalgwen">dalgwen</a> and <a class="jive-link-profile-small" href="http://community.jboss.org/people/afisboy">Tom G</a> regarding the org.drools.persistence.info.WorkItemInfo not being properly persisted.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="background-color: #ffffff; font-size: 12px; color: #5b5b5b; font-family: 'Lucida Sans', 'Lucida Sans Unicode', 'Lucida Grande', Verdana, Arial, Helvetica, sans-serif;">Curious fact : this error is triggerered in the second WorkItemHandler of my workflow, despite the fact that the first one use the same kind of code.</p><p style="background-color: #ffffff; font-size: 12px; color: #5b5b5b; font-family: 'Lucida Sans', 'Lucida Sans Unicode', 'Lucida Grande', Verdana, Arial, Helvetica, sans-serif;">When I debug, i see that :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre" style="font-size: 12px; margin-top: 10px; margin-right: 20px; margin-bottom: 10px; margin-left: 20px; padding-left: 10px; font-family: 'Droid Sans Mono', monospace !important;"><code class="jive-code jive-java" style="font-family: 'Droid Sans Mono', monospace !important;">PersistenceContext context = ((PersistenceContextManager) env.get( EnvironmentName.PERSISTENCE_CONTEXT_MANAGER )).getCommandScopedPersistenceContext(); context.persist( workItemInfo );   ((WorkItemImpl) workItem).setId(workItemInfo.getId()); </code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="background-color: #ffffff; font-size: 12px; color: #5b5b5b; font-family: 'Lucida Sans', 'Lucida Sans Unicode', 'Lucida Grande', Verdana, Arial, Helvetica, sans-serif;">"workitemInfo" is ok, but its id is null, so the nullPointerException.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="background-color: #ffffff; font-size: 12px; color: #5b5b5b; font-family: 'Lucida Sans', 'Lucida Sans Unicode', 'Lucida Grande', Verdana, Arial, Helvetica, sans-serif;">I also debugged with the first WorkItem of my workflow, and then the id is ok after the context.persist(...) call.</p><p style="background-color: #ffffff; font-size: 12px; color: #5b5b5b; font-family: 'Lucida Sans', 'Lucida Sans Unicode', 'Lucida Grande', Verdana, Arial, Helvetica, sans-serif;">Don't know why it works the first time and not after.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Basically I've got a WorkItemHandler which wraps a call to an external webservice. Once finished, this webservice asynchronously sends me a webservice callback and I then call the WorkItemManager.completeWorkItem in order to queue the next step in the workflow.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I've persisted the WorkItemManager in a static variable in order to be able to access it from the client and the server but maybe that's the problem.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks for the help.</p><p>Maïté</p></div>
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