JR49184: STACKOVERFLOWERROR OCCURS WHEN EXECUTING AD-HOC TASK DUE TO A RECURSIVE RoutingAPIHelper.findFlowObjectById() CALL

8.0.1.3-WS-BPM-IFJR49184
Version 8.5 Refresh Pack 5 for the IBM Business Process Manager products

APAR status

• Closed as program error.

Error description

• When a BPD has linked or sub-processes that are recursively
  calling itself, invoking ad-hoc events may cause a
  StackOverflowError due to a deep execution tree.
  
  .
     This is what the java stack of the exception will look like.
  Caused by: java.lang.StackOverflowError
   at
  com.lombardisoftware.client.persistence.common.ID$UUID.getDBValu
  e(ID.java:212)
   at
  com.lombardisoftware.client.persistence.common.ID.getDBValue(ID.
  java:134)
   at
  com.lombardisoftware.instrumentation.records.PORecord.<init>(POR
  ecord.java:28)
   at
  com.lombardisoftware.instrumentation.POInstrumentationPoint.reco
  rd(POInstrumentationPoint.java:50)
   at
  com.lombardisoftware.client.persistence.common.factorydelegate.F
  actoryDelegate.recordCacheHit(FactoryDelegate.java:17)
   at
  com.lombardisoftware.client.persistence.common.factorydelegate.V
  ersionedFactoryDelegate.findByPrimaryKey
  (VersionedFactoryDelegate.java:84)
   at
  com.lombardisoftware.client.persistence.common.AbstractVersioned
  POFactory.findByPrimaryKey
  (AbstractVersionedPOFactory.java:151)
   at
  com.lombardisoftware.bpd.model.impl.BPDBusinessProcessDiagramFac
  tory.findByPrimaryKey
  (BPDBusinessProcessDiagramFactory.java:98)
   at
  com.lombardisoftware.bpd.model.impl.BPDBusinessProcessDiagramFac
  tory.findByPrimaryKey
  (BPDBusinessProcessDiagramFactory.java:89)
   at
  com.lombardisoftware.bpd.model.impl.BPDBusinessProcessDiagramFac
  tory.findByPrimaryKey
  (BPDBusinessProcessDiagramFactory.java:84)
   at
  com.lombardisoftware.bpd.runtime.engine.RoutingAPIHelper.getExte
  rnalDiagram(RoutingAPIHelper.java:654)
   at
  com.lombardisoftware.bpd.runtime.engine.RoutingAPIHelper.findFlo
  wObjectById(RoutingAPIHelper.java:614)
   at
  com.lombardisoftware.bpd.runtime.engine.RoutingAPIHelper.findFlo
  wObjectById(RoutingAPIHelper.java:616)
   at
  com.lombardisoftware.bpd.runtime.engine.RoutingAPIHelper.findFlo
  wObjectById(RoutingAPIHelper.java:616)
   at
  com.lombardisoftware.bpd.runtime.engine.RoutingAPIHelper.findFlo
  wObjectById(RoutingAPIHelper.java:616)
  (and numerous more RoutingAPIHelper.findFlowObjectById() calls)
  

Local fix

• na
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM Business Process Manager (BPM)          *
  *                  V7.5.1.1 Advanced, Standard, and Express    *
  ****************************************************************
  * PROBLEM DESCRIPTION: StackOverFlowError occurs when          *
  *                      you run a business process definition   *
  *                      (BPD) that contains a recursive linked  *
  *                      process.                                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When you run an instance of a BPD that contains a recursive
  linked process, the same node in that recursive linked process
  is endlessly revisited, which results in the
  StackOverFlowError in the SystemOut.log file:
  Caused by:
  com.lombardisoftware.client.delegate.BusinessDelegateException:
  java.lang.StackOverflowError
  at
  com.lombardisoftware.client.delegate.BusinessDelegateException.a
  sBusinessDelegateException(BusinessDelegateException.java:41)
  at
  com.lombardisoftware.client.delegate.common.WebsphereDelegateHel
  per.doAsCurrentSubjectContextSensitive(WebsphereDelegateHelper.j
  ava:199)
  at
  com.lombardisoftware.client.delegate.PersistenceServicesDelegate
  Default.findQuietlyByPrimaryKey(PersistenceServicesDelegateDefau
  lt.java:332)
  at
  com.lombardisoftware.client.persistence.common.factorydelegate.U
  nversionedFactoryDelegate.findQuietlyByPrimaryKey(UnversionedFac
  toryDelegate.java:49)
  at
  com.lombardisoftware.client.persistence.common.factorydelegate.U
  ncachedUnversionedFactoryDelegate.findQuietlyByPrimaryKey(Uncach
  edUnversionedFactoryDelegate.java:27)
  at
  com.lombardisoftware.client.persistence.common.AbstractUnversion
  edPOFactory.findQuietlyByPrimaryKey(AbstractUnversionedPOFactory
  .java:134)
  at
  com.lombardisoftware.client.persistence.DefaultSnapshotHelper.ge
  tLatestSnapshot(DefaultSnapshotHelper.java:43)
   óÔé¼ ª
   óÔé¼ ª
  The following method findFlowObjectById() is infinitely called
  until the exception is thrown.
  at
  com.lombardisoftware.core.script.js.TWTaskScriptable.findFlowObj
  ectById(TWTaskScriptable.java:432)
  at
  com.lombardisoftware.core.script.js.TWTaskScriptable.findFlowObj
  ectById(TWTaskScriptable.java:432)
  at
  com.lombardisoftware.core.script.js.TWTaskScriptable.findFlowObj
  ectById(TWTaskScriptable.java:432)
  

Problem conclusion

• A fix is available for IBM BPM V8.0.1.2 that remembers whether
  a node in a BPD tree has been visited earlier or not. If a
  node has been visited earlier, it is skipped and goes to  the
  next node.
  
  On Fix Central (http://www.ibm.com/support/fixcentral), search
  for JR49184:
  1. Select the product group, product, installed version, and
  platform, and click Continue.
  2. Select APAR or SPR, enter JR49184, and click Continue.
  
  When you download fix packages, ensure that you also download
  the readme file for each fix. Review each readme file for
  additional installation instructions and information about the
  fix.
  

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

• Fixed component name

  BPM ADVANCED

• Fixed component ID

  5725C9400

Applicable component levels

• R800 PSY

     UP