PH41630: ECLIPSELINK NULLPOINTEREXCEPTION FROM BATCHPOLICY

APAR status

• Closed as program error.

Error description

• Running a BatchFetch query with EclipseLink that contains a
  full entity package name throws a NullPointerException
  
  ´´´
  Caused by: java.lang.NullPointerException
  at
  org.eclipse.persistence.queries.BatchFetchPolicy.getDataResults(
  BatchFetchPolicy.java:251)
  at
  org.eclipse.persistence.mappings.ForeignReferenceMapping.extract
  ResultFromBatchQuery(ForeignReferenceMapping.java:562)
  at
  org.eclipse.persistence.internal.indirection.NoIndirectionPolicy
  .valueFromBatchQuery(NoIndirectionPolicy.java:297)
  at
  org.eclipse.persistence.mappings.ForeignReferenceMapping.batched
  ValueFromRow(ForeignReferenceMapping.java:275)
  at
  org.eclipse.persistence.mappings.ForeignReferenceMapping.valueFr
  omRow(ForeignReferenceMapping.java:2176)
  at
  org.eclipse.persistence.mappings.ForeignReferenceMapping.buildCl
  oneFromRow(ForeignReferenceMapping.java:336)
  at
  org.eclipse.persistence.internal.descriptors.ObjectBuilder.build
  AttributesIntoWorkingCopyClone(ObjectBuilder.java:2002)
  at
  org.eclipse.persistence.internal.descriptors.ObjectBuilder.build
  WorkingCopyCloneFromRow(ObjectBuilder.java:2255)
  at
  org.eclipse.persistence.internal.descriptors.ObjectBuilder.build
  ObjectInUnitOfWork(ObjectBuilder.java:853)
  at
  org.eclipse.persistence.internal.descriptors.ObjectBuilder.build
  Object(ObjectBuilder.java:740)
  at
  org.eclipse.persistence.internal.descriptors.ObjectBuilder.build
  Object(ObjectBuilder.java:694)
  at
  org.eclipse.persistence.queries.ReportQueryResult.processItem(Re
  portQueryResult.java:251)
  ´´´
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server - Java Persistence API - JPA 2.1 &   *
  *                  EclipseLink                                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: EclipseLink can throw a                 *
  *                      NullPointerException executing batch    *
  *                      queries with fully qualified class      *
  *                      names                                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Example:
  ´´´
  select e from my.package.Entity e
  ´´´
  Exception:
  ´´´
  Caused by: java.lang.NullPointerException
  at
  org.eclipse.persistence.queries.BatchFetchPolicy.getDataResults(
  BatchFetchPolicy.java:251)
  at
  org.eclipse.persistence.mappings.ForeignReferenceMapping.extract
  ResultFromBatchQuery(ForeignReferenceMapping.java:562)
  at
  org.eclipse.persistence.internal.indirection.NoIndirectionPolicy
  .valueFromBatchQuery(NoIndirectionPolicy.java:297)
  at
  org.eclipse.persistence.mappings.ForeignReferenceMapping.batched
  ValueFromRow(ForeignReferenceMapping.java:275)
  at
  org.eclipse.persistence.mappings.ForeignReferenceMapping.valueFr
  omRow(ForeignReferenceMapping.java:2176)
  at
  org.eclipse.persistence.mappings.ForeignReferenceMapping.buildCl
  oneFromRow(ForeignReferenceMapping.java:336)
  at
  org.eclipse.persistence.internal.descriptors.ObjectBuilder.build
  AttributesIntoWorkingCopyClone(ObjectBuilder.java:2002)
  at
  org.eclipse.persistence.internal.descriptors.ObjectBuilder.build
  WorkingCopyCloneFromRow(ObjectBuilder.java:2255)
  at
  org.eclipse.persistence.internal.descriptors.ObjectBuilder.build
  ObjectInUnitOfWork(ObjectBuilder.java:853)
  at
  org.eclipse.persistence.internal.descriptors.ObjectBuilder.build
  Object(ObjectBuilder.java:740)
  at
  org.eclipse.persistence.internal.descriptors.ObjectBuilder.build
  Object(ObjectBuilder.java:694)
  at
  org.eclipse.persistence.queries.ReportQueryResult.processItem(Re
  portQueryResult.java:251)
  ´´´
  

Problem conclusion

• The fix for this APAR changes the EclipseLink implementation
  and involves an update to the third-party source. See
  https://github.com/eclipse-ee4j/eclipselink/issues/1245
  
  This fix is currently targeted for WebSphere Application
  Server 9.0.5.11, and WebSphere Liberty 22.0.0.1. 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 APP S

• Fixed component ID

  5724J0800

Applicable component levels