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jBPM 4.3 starting a sub-process after a state node will fail
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reply from <a href="http://community.jboss.org/people/tunmang">Tun Mang</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/534973#534973">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi Maciej :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks for your help. The event listener is just for my own transition visibility. After I removed all the event listeners in the process definition (as shown below), re-deploy, re-start the process instance. When the "token" reached the state node, I call executionService.signalExecutionById("SimSubProc.290001"), and it throws the same exceptions. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I get the executionService by calling processEngine.getExecutionService(). Is there something I missed ?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The puzzle I cannot figure out is why if I remove the "check_id" state node and make the start node's transition directly go to the sub-process, everything goes fine.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks a lot for your help again.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Tun Mang</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>=================================</p><div id="_mcePaste"><?xml version="1.0" encoding="UTF-8"?></div><div id="_mcePaste"><span><process name="SimSubProc" xmlns="</span><a class="jive-link-external-small" href="http://jbpm.org/4.3/jpdl" target="_blank">http://jbpm.org/4.3/jpdl</a><span>"></span></div><div id="_mcePaste">  <start >  </div><div id="_mcePaste">    <transition to="check_id" ></transition>    </div><div id="_mcePaste">  </start></div><div id="_mcePaste"> </div><div id="_mcePaste">  <state name="check_id"  >    </div><div id="_mcePaste">    <transition to="review" ></transition>      </div><div id="_mcePaste">  </state></div><div id="_mcePaste"> </div><div id="_mcePaste">  <sub-process name="review" sub-process-key="SubProcTasks" >               </div><div id="_mcePaste">    <transition to="ok" ></transition>    </div><div id="_mcePaste">  </sub-process></div><div id="_mcePaste">  </div><div id="_mcePaste">  <state name="ok" >    </div><div id="_mcePaste">    <transition to="end" ></transition>            </div><div id="_mcePaste">  </state>  </div><div id="_mcePaste"> </div><div id="_mcePaste">  <end name="end" ></end>  </div><div id="_mcePaste"></process></div><div> </div><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>===================================</p><p><p>09:03:17,937 INF | [CheckDbCmd] jBPM version info: library[4.3], schema[4.3]</p><p>Process Engine Identity Hash Code: 4781685</p><p>09:03:18,765 WRN | [JDBCExceptionReporter] SQL Error: 1452, SQLState: 23000</p><p>09:03:18,765 SEV | [JDBCExceptionReporter] Cannot add or update a child row: a foreign key constraint fails (`jbpm_4_3/jbpm4_execution`, CONSTRAINT `FK_EXEC_SUBPI` FOREIGN KEY (`SUBPROCINST_`) REFERENCES `jbpm4_execution` (`DBID_`))</p><p>### EXCEPTION ###########################################</p><p>09:03:18,765 SEV | [AbstractFlushingEventListener] Could not synchronize database state with session</p><p>org.hibernate.exception.ConstraintViolationException: could not update: [org.jbpm.pvm.internal.model.ExecutionImpl#290001]</p><p><span> </span>at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:71)</p><p><span> </span>at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)</p><p><span> </span>at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2425)</p><p>  ....</p><p><span> </span>at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)</p><p><span> </span>at org.jbpm.pvm.internal.id.AcquireDbidBlockCmd.execute(AcquireDbidBlockCmd.java:35)</p><p><span> </span>at org.jbpm.pvm.internal.id.AcquireDbidBlockCmd.execute(AcquireDbidBlockCmd.java:10)</p><p><span> </span>at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)</p><p><span> </span>....</p><p><span> </span>at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.signalExecutionById(ExecutionServiceImpl.java:84)<span> </span></p><p><span> </span>... 37 more</p><p>### EXCEPTION ###########################################</p><p>### EXCEPTION ###########################################</p><p>09:03:18,781 INF | [DefaultCommandService] exception while executing command org.jbpm.pvm.internal.cmd.SignalCmd@c017e9</p><p>org.jbpm.api.JbpmException: couldn't acquire block of ids</p><p><span> </span>at org.jbpm.pvm.internal.id.DatabaseDbidGenerator.getNextId(DatabaseDbidGenerator.java:65)</p><p><span> </span>at org.jbpm.pvm.internal.model.ExecutionImpl.save(ExecutionImpl.java:194)</p><p><span> </span>at org.jbpm.pvm.internal.model.ExecutionImpl.initializeProcessInstance(ExecutionImpl.java:187)</p><p><span> </span>at org.jbpm.pvm.internal.model.ProcessDefinitionImpl.createProcessInstance(ProcessDefinitionImpl.java:106)</p><p><span> </span>at org.jbpm.jpdl.internal.activity.SubProcessActivity.execute(SubProcessActivity.java:70)</p><p><span> </span>at org.jbpm.pvm.internal.model.op.ExecuteActivity.perform(ExecuteActivity.java:60)</p><p><span> </span>at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperationSync(ExecutionImpl.java:656)</p><p><span> </span>at org.jbpm.pvm.internal.model.ExecutionImpl.performAtomicOperation(ExecutionImpl.java:616)</p><p><span> </span>at org.jbpm.pvm.internal.model.ExecutionImpl.signal(ExecutionImpl.java:417)</p><p><span> </span>at org.jbpm.pvm.internal.cmd.SignalCmd.execute(SignalCmd.java:61)</p><p><span> </span>at org.jbpm.pvm.internal.cmd.SignalCmd.execute(SignalCmd.java:35)</p><p><span> </span>at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42)</p><p><span> </span>at org.jbpm.pvm.internal.tx.StandardTransactionInterceptor.execute(StandardTransactionInterceptor.java:54)</p><p><span> </span>at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53)</p><p><span> </span>at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40)</p><p><span> </span>at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55)</p><p><span> </span>at org.jbpm.pvm.internal.svc.SkipInterceptor.execute(SkipInterceptor.java:43)</p><p><span> </span>at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.signalExecutionById(ExecutionServiceImpl.java:84)</p><p><span> </span>....</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"><span> </span> </p></p></div>
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