PH47827: NPE DURING BATCH JOB EXECUTION

APAR status

• Closed as program error.

Error description

• The following exception was issued during batch job execution:
  
  java.lang.NullPointerException
  at com.ibm.wsspi.batch.checkpointalgorithms.timebased.getAlgori
  thmName(timebased.java:47)
  at com.xzy.abc.getAlgorithmName(ABCLogger.java:19)    // line
  modified for sec
  at com.ibm.ws.gridcontainer.batch.checkpoint.CheckpointMgr.init
  ialize(CheckpointMgr.java:317)
  at com.ibm.ws.gridcontainer.batch.impl.StepManagerImpl._getChec
  kpointManager(StepManagerImpl.java:721)
  at com.ibm.ws.gridcontainer.batch.impl.StepManagerImpl.setupSte
  p(StepManagerImpl.java:250)
  at com.ibm.ws.gridcontainer.security.actions.SetupStepBatchUser
  PrivilegedAction.executeAction(SetupStepBatchUserPrivilegedActi
  on.java:45)
  at com.ibm.ws.gridcontainer.security.AbstractUserPrivilegedActi
  on.run(AbstractUserPrivilegedAction.java:47)
  
  The batch runtime is accessing a field from the algorithm that's
  not yet initialized due to an earlier initialization error. This
  results in NullPointerException which is masking the original
  exception during initialization. The APAR will deliver the
  proper error handling. It will not fix that original exception
  which could be cased by a number of reasons.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  *                  Java Batch                                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: NullPointerException occurs early       *
  *                      during                                  *
  *                      initialization of batch job's           *
  *                      checkpoint                              *
  *                      manager                                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When an error is encountered during initialization of the batch
  runtime Checkpoint Manager, the runtime attempts to log an error
  message.  It uses some values from the job's checkpoint
  algorithm
  in that error message.  If the error occurs early enough during
  the initialization, some values may not be initialized yet,
  leading to a NullPointerException when accessed for use in the
  error message, and losing the original error that occurred.
  

Problem conclusion

• A code update has been made to properly handle the condition if
  an error occurs during early initialization of the job checkpoin
  manager.
  
  The fix for this APAR is targeted for inclusion in fix pack
  9.0.5.14 and 8.5.5.23. For more information, see 'Recommended
  Updates for WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

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

  WEBSPHERE FOR Z

• Fixed component ID

  5655I3500

Applicable component levels