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Violation of UNIQUE KEY constraint with sub-process
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created by <a href="http://community.jboss.org/people/RyanLBart">Ryan Bartlett</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/556328#556328">View the full discussion</a>
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<div class="jive-rendered-content"><p>I am getting the following Exception when using sub-processes (.jpdl.xml files are below). I have removed the subprocesses and everything works fine. When I add them back in, I get the ConstraintViolation.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>My environment is using MSSQL Server and we have not modified any of the JBPM defaults for transactions, id generators, etc. Any clues? I have seen some other posts regarding this issue, but haven't seen a clear answer except for perhaps there is a bug in the id generator.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks!</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #ff0000;">Starting execution:</span></p><p><span style="font-size: 10pt;"><p align="left">ProcessInstance processInstance = executionService.startProcessInstanceByKey(message.getClass().getCanonicalName(), <em><span style="font-size: 10pt;"> parameters);</span><span style="font-size: 10pt;"> <em style=": ; font-size: 2; "><p align="left"><p align="left">String processInstanceId = processInstance.getId();</p><p align="left">IMessage response = (IMessage) executionService.getVariable(processInstanceId, <em><span style="color: #0000c0; font-size: 10pt; ">S_MESSAGE_RESPONSE</span><span style="font-size: 10pt;">);</span><span style="font-size: 10pt;"> <em style=": ; font-size: 2; "><p align="left"><p align="left"> <em style="font-size: 10pt; ">executionService.endProcessInstance(processInstanceId, <span style="color: #2a00ff; font-size: 10pt; ">"end"</span><span style="font-size: 10pt;">);</span></em></p></p></em></span></em></p><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></p></em></span></em><em><p align="left" style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></em></p></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #ff0000;">Stack trace:</span></p><p>2010-08-06 18:15:49,686 ERROR bus.thread.pool-1-message.processing.thread-1 org.hibernate.util.JDBCExceptionReporter - Violation of UNIQUE KEY constra<br/>int 'UQ__JBPM4_EXECUTION__67C95AEA'. Cannot insert duplicate key in object 'dbo.JBPM4_EXECUTION'.<br/>2010-08-06 18:15:49,686 ERROR bus.thread.pool-1-message.processing.thread-1 org.hibernate.event.def.AbstractFlushingEventListener - Could not synchron<br/>ize database state with session<br/>org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update<br/>        at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94)<br/>        at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)<br/>        at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275)<br/>        at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:114)<br/>        at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:109)<br/>        at org.hibernate.jdbc.AbstractBatcher.prepareBatchStatement(AbstractBatcher.java:244)<br/>        at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2252)<br/>        at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2688)<br/>        at org.hibernate.action.EntityInsertAction.execute(EntityInsertAction.java:79)<br/>        at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)<br/>        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)<br/>        at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167)<br/>        at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)<br/>        at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)<br/>        at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #ff0000;">Main JPDL file:</span></p><p><process name='com.e3.es.order.messages.createorder.defn.v2.CreateOrderRequestType' <br/> key='com.e3.es.order.messages.createorder.defn.v2.CreateOrderRequestType' <br/>id='create'><br/> <start><br/>  <transition to='beginProcessing'/><br/> </start></p><p><br/> <java name='beginProcessing'<br/>  class='com.e3.es.order.service.jbpm.handler.RequestHandler'<br/>  method='getProcessingContext'<br/>  var='processingContext'><br/>  <arg><object expr='#{serviceRequest}'/></arg><br/>  <transition to='verify'/><br/> </java></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> <sub-process name='verify' sub-process-key="supply.verify"><br/>  <parameter-in var="processingContext" subvar="processingContext" /><br/>  <transition to='holdPurchases'/><br/> </sub-process></p><p> <br/><java name='holdPurchases'<br/>  class='com.e3.es.order.service.jbpm.handler.general.AdaptorRequestHandler'<br/>  method='handle'><br/>  <arg><string value='hold'/></arg><br/>  <arg><object expr='#{processingContext}'/></arg><br/>  <arg><string value='Role=RequestedProductDetail;ProcessingModel=Two-Phase'/></arg><br/>  <transition to='wait'/><br/> </java></p><p> <state name='wait'/></p><p><end name='end'></end></p><p></process></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #ff0000;">Subprocess:</span></p><p><process name='supply.verify' key='supply.verify'><br/> <start><br/>  <transition to='supplyverify'/><br/> </start></p><p> <java name='supplyverify'<br/>  class='com.e3.es.order.service.jbpm.handler.general.AdaptorRequestHandler'<br/>  method='handle'><br/>  <arg><string value='verify'/></arg><br/>  <arg><object expr='#{processingContext}'/></arg><br/>  <arg><string value='Role=RequestedProductDetail,PaymentPlan'/></arg><br/>  <transition to='end'/><br/> </java><br/> <end name='end'></end><br/></process></p></div>
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