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fireUntilHalt with customworkhandler
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created by <a href="http://community.jboss.org/people/hina">Hina Agarwal</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/626196#626196">View the full discussion</a>
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<div class="jive-rendered-content"><p>If we use cutom workitem handler as mentioned below and fireUntilhalt to invoke rules in reactive mode. While debugging, I found that before completing first task(line in blue & bold), it fires the rule which is active. After running of rule, it get back to end of completeworkitem.It creates a problem an thrpw an exception mentioned below.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>WorkItemHandler</p><pre class="jive-pre"><code class="jive-code jive-java"><font color="navy"><b>public</b></font> <font color="navy"><b>class</b></font> MyHumanChangingValuesSimulatorWorkItemHandler <font color="navy"><b>implements</b></font> WorkItemHandler <font color="navy">{</font>
    <font color="navy"><b>private</b></font> <font color="navy"><b>static</b></font> <font color="navy"><b>int</b></font> counter = 1;
    <font color="navy"><b>private</b></font> WorkItemManager workItemManager;
    <font color="navy"><b>private</b></font> <font color="navy"><b>long</b></font> workItemId;
    <font color="navy"><b>private</b></font> Map<String, Object> results;
    <font color="navy"><b>private</b></font> Emergency currentEmergency;
 
    <font color="navy"><b>public</b></font> <font color="navy"><b>void</b></font> executeWorkItem(WorkItem workItem, WorkItemManager workItemManager) <font color="navy">{</font>
        this.workItemId = workItem.getId();
        this.workItemManager = workItemManager;
        currentEmergency = (Emergency) workItem.getParameter(<font color="red">"emergency"</font>);
        currentEmergency.setRevision(currentEmergency.getRevision() + counter);
 
 
    <font color="navy">}</font>
 
    <font color="navy"><b>public</b></font> <font color="navy"><b>void</b></font> abortWorkItem(WorkItem workItem, WorkItemManager workItemManager) <font color="navy">{</font>
 
    <font color="navy">}</font>
 
    <font color="navy"><b>public</b></font> <font color="navy"><b>void</b></font> completeWorkItem() <font color="navy">{</font>
        results = <font color="navy"><b>new</b></font> HashMap<String, Object>();
        results.put(<font color="red">"emergency"</font>, currentEmergency);
        workItemManager.completeWorkItem(workItemId, results);
 
    <font color="navy">}</font>
 
 
<font color="navy">}</font>
 
 
 
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Exception:</p><pre class="jive-pre"><code class="jive-code jive-java">0    13/09 15:13:39,598[Thread-6] ERROR hibernate.util.JDBCExceptionReporter.logExceptions - error requeueing a JdbcPooledConnection from datasource jdbc/testDS in state ACCESSIBLE wrapping xads1: url=jdbc:h2:mem:mydb user=root
Hibernate: update ProcessInstanceInfo set lastModificationDate=?, lastReadDate=?, processId=?, processInstanceByteArray=?, startDate=?, state=?, OPTLOCK=? where InstanceId=? and OPTLOCK=?
3    13/09 15:13:39,601[Thread-6] ERROR hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException - Unable to mark <font color="navy"><b>for</b></font> rollback on PersistenceException:
java.lang.IllegalStateException: no transaction started on <font color="navy"><b>this</b></font> thread
          at bitronix.tm.BitronixTransactionManager.setRollbackOnly(BitronixTransactionManager.java:123)
          at org.hibernate.ejb.AbstractEntityManagerImpl.markAsRollback(AbstractEntityManagerImpl.java:421)
          at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:576)
          at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:614)
          at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:202)
          at org.jbpm.persistence.JpaProcessPersistenceContext.findProcessInstanceInfo(JpaProcessPersistenceContext.java:26)
          at org.jbpm.persistence.processinstance.JPAProcessInstanceManager.getProcessInstance(JPAProcessInstanceManager.java:59)
          at org.jbpm.process.instance.ProcessRuntimeImpl.getProcessInstance(ProcessRuntimeImpl.java:190)
          at org.drools.common.AbstractWorkingMemory.getProcessInstance(AbstractWorkingMemory.java:1113)
          at org.drools.impl.StatefulKnowledgeSessionImpl.getProcessInstance(StatefulKnowledgeSessionImpl.java:283)
          at org.jbpm.persistence.processinstance.JPASignalManager.signalEvent(JPASignalManager.java:24)
          at org.jbpm.process.instance.ProcessRuntimeImpl$3.afterRuleFlowGroupDeactivated(ProcessRuntimeImpl.java:335)
          at org.drools.event.AgendaEventSupport.fireAfterRuleFlowGroupDeactivated(AgendaEventSupport.java:168)
          at org.drools.common.RuleFlowGroupImpl.setActive(RuleFlowGroupImpl.java:148)
          at org.drools.common.RuleFlowGroupImpl$DeactivateCallback.execute(RuleFlowGroupImpl.java:301)
          at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:994)
          at org.drools.common.DefaultAgenda.fireUntilHalt(DefaultAgenda.java:1037)
          at org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:777)
          at org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:753)
          at org.drools.command.runtime.rule.FireUntilHaltCommand$1.run(FireUntilHaltCommand.java:50)
          at java.lang.Thread.run(Unknown Source)
Exception in thread <font color="red">"Thread-6"</font> org.drools.RuntimeDroolsException: Unexpected exception executing action org.drools.common.RuleFlowGroupImpl$DeactivateCallback@556949
          at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:996)
          at org.drools.common.DefaultAgenda.fireUntilHalt(DefaultAgenda.java:1037)
          at org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:777)
          at org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:753)
          at org.drools.command.runtime.rule.FireUntilHaltCommand$1.run(FireUntilHaltCommand.java:50)
          at java.lang.Thread.run(Unknown Source)
Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Cannot release connection
          at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:614)
          at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:202)
          at org.jbpm.persistence.JpaProcessPersistenceContext.findProcessInstanceInfo(JpaProcessPersistenceContext.java:26)
          at org.jbpm.persistence.processinstance.JPAProcessInstanceManager.getProcessInstance(JPAProcessInstanceManager.java:59)
          at org.jbpm.process.instance.ProcessRuntimeImpl.getProcessInstance(ProcessRuntimeImpl.java:190)
          at org.drools.common.AbstractWorkingMemory.getProcessInstance(AbstractWorkingMemory.java:1113)
          at org.drools.impl.StatefulKnowledgeSessionImpl.getProcessInstance(StatefulKnowledgeSessionImpl.java:283)
          at org.jbpm.persistence.processinstance.JPASignalManager.signalEvent(JPASignalManager.java:24)
          at org.jbpm.process.instance.ProcessRuntimeImpl$3.afterRuleFlowGroupDeactivated(ProcessRuntimeImpl.java:335)
          at org.drools.event.AgendaEventSupport.fireAfterRuleFlowGroupDeactivated(AgendaEventSupport.java:168)
          at org.drools.common.RuleFlowGroupImpl.setActive(RuleFlowGroupImpl.java:148)
          at org.drools.common.RuleFlowGroupImpl$DeactivateCallback.execute(RuleFlowGroupImpl.java:301)
          at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:994)
          ... 5 more
Hibernate: select processins0_.InstanceId as InstanceId1_0_, processins0_.lastModificationDate as lastModi2_1_0_, processins0_.lastReadDate as lastRead3_1_0_, processins0_.processId as processId1_0_, processins0_.processInstanceByteArray as processI5_1_0_, processins0_.startDate as startDate1_0_, processins0_.state as state1_0_, processins0_.OPTLOCK as OPTLOCK1_0_ from ProcessInstanceInfo processins0_ where processins0_.InstanceId=?
Caused by: org.hibernate.exception.GenericJDBCException: Cannot release connection
          at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:126)
          at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:114)
          at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
          at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)
          at org.hibernate.jdbc.ConnectionManager.closeConnection(ConnectionManager.java:478)
          at org.hibernate.jdbc.ConnectionManager.aggressiveRelease(ConnectionManager.java:429)
          at org.hibernate.jdbc.ConnectionManager.afterStatement(ConnectionManager.java:304)
          at org.hibernate.jdbc.AbstractBatcher.closePreparedStatement(AbstractBatcher.java:572)
          at org.hibernate.jdbc.AbstractBatcher.closeStatement(AbstractBatcher.java:291)
          at org.hibernate.jdbc.AbstractBatcher.closeQueryStatement(AbstractBatcher.java:307)
          at org.hibernate.jdbc.AbstractBatcher.closeQueryStatement(AbstractBatcher.java:234)
          at org.hibernate.loader.Loader.doQuery(Loader.java:749)
          at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
          at org.hibernate.loader.Loader.loadEntity(Loader.java:1881)
          at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:71)
          at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:65)
          at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3072)
          at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:434)
          at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:415)
          at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:165)
          at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:223)
          at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:126)
          at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:905)
          at org.hibernate.impl.SessionImpl.get(SessionImpl.java:842)
          at org.hibernate.impl.SessionImpl.get(SessionImpl.java:835)
          at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:182)
          ... 16 more
Caused by: java.sql.SQLException: error requeueing a JdbcPooledConnection from datasource jdbc/testDS in state ACCESSIBLE wrapping xads1: url=jdbc:h2:mem:mydb user=root
          at bitronix.tm.resource.jdbc.JdbcPooledConnection.release(JdbcPooledConnection.java:148)
          at bitronix.tm.resource.jdbc.JdbcConnectionHandle.close(JdbcConnectionHandle.java:77)
          at org.hibernate.connection.DatasourceConnectionProvider.closeConnection(DatasourceConnectionProvider.java:97)
          at org.hibernate.jdbc.ConnectionManager.closeConnection(ConnectionManager.java:474)
          ... 37 more
Caused by: bitronix.tm.internal.BitronixSystemException: cannot close a resource when its XAResource is taking part in an unfinished global transaction
          at bitronix.tm.resource.common.TransactionContextHelper.requeue(TransactionContextHelper.java:117)
          at bitronix.tm.resource.jdbc.JdbcPooledConnection.release(JdbcPooledConnection.java:146)
          ... 40 more
 
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Please suggest me can we use fireUntilHalt() with customhumantask handler. Why it always beahave differently?</p></div>
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