JR48491: SIMULATION ENGINE IN PROCESS DESIGNER THROWS NULLPOINTEREXCEPTION

Version 8.5 Refresh Pack 5 for the IBM Business Process Manager products
Download Version 8.0.1 Fix Pack 3 for the IBM Business Process Manager products

APAR status

• Closed as fixed if next.

Error description

• An BPD has an InclusiveGateway with name "Untitled".
  This gateway has exactly one incoming flow and one outgoing
  flow.  The simulation engine has an error handling this case.
  A gateway should have multiple outgoing flows (or multiple
  incoming flows in the convergence case). Simulation should
  probably show a warning message since it is likely a modeling
  error.
  

Local fix

• Remove the inclusive Gateway
  

Problem summary

• You receive a null pointer exception when you run a simulation
  on a business process definition (BPD) that contains a gateway
  that has only one incoming flow and one outgoing flow. This is
  an incomplete model during development but should be allowed in
  BPD simulation.
  
  EDITIONS AFFECTED:
  IBM Business Process Manager
  
  PROBLEM DETAILED DESCRIPTION:
  In Process Designer, you can create a gateway in a BPD that has
  only one incoming flow and one outgoing flow.  However, you
  receive the following null pointer exception when you run a
  simulation on this BPD:
  
  <log>
  2013-10-28 11:51:28,104 [main] ERROR
  com.lombardisoftware.client.ae.core.TWAbstractPlugin  - An error
  hasoccurred.
  java.lang.NullPointerException
  at
  com.lombardisoftware.simulation.bpd.impl.SimBPDFlowObjectImpl.pr
  ocessStarted(SimBPDFlowObjectImpl.java:151)
  at
  com.lombardisoftware.simulation.bpd.impl.SimBPDProcessInstanceIm
  pl.<init>(SimBPDProcessInstanceImpl.java:45)
   at
  com.lombardisoftware.simulation.bpd.impl.SimBPDProcessImpl.newIn
  stance(SimBPDProcessImpl.java:106)
  at
  com.lombardisoftware.simulation.bpd.impl.SimBPDProcessImpl.creat
  eInstance(SimBPDProcessImpl.java:98)
  at
  com.lombardisoftware.simulation.bpd.impl.worker.StartEventImpl$1
  .execute(StartEventImpl.java:47)
  at
  com.lombardisoftware.simulation.impl.SimulationImpl.run(Simulati
  onImpl.java:73)
  at
  com.lombardisoftware.client.ae.optimizer.OptimizationSingleton.g
  etTimelineFromScenario(OptimizationSingleton.java:884)
  at
  com.lombardisoftware.client.ae.optimizer.OptimizationSingleton.a
  ccess$1000(OptimizationSingleton.java:142)
  at
  com.lombardisoftware.client.ae.optimizer.OptimizationSingleton$6
  .doServerOperation(OptimizationSingleton.java:724)
  at
  com.lombardisoftware.client.ae.server.TWServerJob.run(TWServerJo
  b.java:131)
  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
  </log>
  
  PROBLEM CONCLUSION:
  The simulation engine will be fixed to handle this case by
  issuing an error or warning message instead of the null pointer
  exception.
  

Problem conclusion

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels

• R850 PSY

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