RS03531: NPE WHEN LOADING GENERIC CLASS

Operational Decision Manager V8.10.2.0: Interim Fix 7
Operational Decision Manager V8.10.2.0: Interim Fix 12 for Engine
Operational Decision Manager for z/OS 8.10.2.2 Fix Pack
IBM Operational Decision Manager V8.10.2.2 Fix Pack
IBM Operational Decision Manager V8.10.4 Download Document
IBM Operational Decision Manager V8.10.4 Mod Pack
IBM Operational Decision Manager for z/OS 8.10.4 Mod Pack

APAR status

• Closed as program error.

Error description

• When generating a dsar (with bytecode generation) in Rule
  Designer, there is a NPE due to the declaration of this kind of
  methods:
  
  public <T extends BO<?>> List<T> getBOs(List<BOKey<?
  extends T>> boKeys)
  
  !MESSAGE An error occurred during the
  export of the ruleset archive.
  
  com.ibm.rules.container.EngineOu
  tlineSerializationException: java.lang.NullPointerException
  at c
  om.ibm.rules.container.EnginePackageOpenXMLProducer.writeJar(Eng
  inePackageOpenXMLProducer.java:269)
  at com.ibm.rules.container.E
  nginePackageOpenXMLProducer.writeJar(EnginePackageOpenXMLProduce
  r.java:277)
  at com.ibm.rules.container.EngineOutlineSerializer.w
  riteJar(EngineOutlineSerializer.java:48)
  at com.ibm.rules.studio
  .rve.builder.RVERulesetArchiveExporter.serializeEngineOutline(RV
  ERulesetArchiveExporter.java:743)
  at com.ibm.rules.studio.rve.bu
  ilder.RVERulesetArchiveExporter.export(RVERulesetArchiveExporter
  .java:432)
  at ilog.rules.studio.model.archive.internal.RulesetAr
  chiveExportJob.run(RulesetArchiveExportJob.java:65)
  at
  org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)
  Caused
  by: java.lang.NullPointerException
  at com.ibm.rules.engine.lang.
  semantics.util.generics.SemGenericParameters.hashCode(SemGeneric
  Parameters.java:74)
  at
  java.util.HashMap.hash(HashMap.java:350)
  at
  java.util.HashMap.get(HashMap.java:568)
  at com.ibm.rules.engine.
  lang.semantics.impl.GenericInstanceStore.getInstance(GenericInst
  anceStore.java:136)
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users building rulesets with Decision Engine.                *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * When generating a dsar (with bytecode generation) in Rule    *
  * Designer, there is a NPE due to the declaration of this kind *
  * of                                                           *
  * methods:                                                     *
  *                                                              *
  * public <T extends BO<?>> List<T> getBOs(List<BOKey<?         *
  * extends T>> boKeys)                                          *
  *                                                              *
  * !MESSAGE An error occurred during the                        *
  * export of the ruleset archive.                               *
  *                                                              *
  * com.ibm.rules.container.EngineOu                             *
  * tlineSerializationException: java.lang.NullPointerException  *
  * at c                                                         *
  * om.ibm.rules.container.EnginePackageOpenXMLProducer.writeJar *
  * (Eng                                                         *
  * inePackageOpenXMLProducer.java:269)                          *
  * at com.ibm.rules.container.E                                 *
  * nginePackageOpenXMLProducer.writeJar(EnginePackageOpenXMLPro *
  * duce                                                         *
  * r.java:277)                                                  *
  * at com.ibm.rules.container.EngineOutlineSerializer.w         *
  * riteJar(EngineOutlineSerializer.java:48)                     *
  * at com.ibm.rules.studio                                      *
  * .rve.builder.RVERulesetArchiveExporter.serializeEngineOutlin *
  * e(RV                                                         *
  * ERulesetArchiveExporter.java:743)                            *
  * at com.ibm.rules.studio.rve.bu                               *
  * ilder.RVERulesetArchiveExporter.export(RVERulesetArchiveExpo *
  * rter                                                         *
  * .java:432)                                                   *
  * at ilog.rules.studio.model.archive.internal.RulesetAr        *
  * chiveExportJob.run(RulesetArchiveExportJob.java:65)          *
  * at                                                           *
  * org.eclipse.core.internal.jobs.Worker.run(Worker.java:56)    *
  * Caused                                                       *
  * by: java.lang.NullPointerException                           *
  * at com.ibm.rules.engine.lang.                                *
  * semantics.util.generics.SemGenericParameters.hashCode(SemGen *
  * eric                                                         *
  * Parameters.java:74)                                          *
  * at                                                           *
  * java.util.HashMap.hash(HashMap.java:350)                     *
  * at                                                           *
  * java.util.HashMap.get(HashMap.java:568)                      *
  * at com.ibm.rules.engine.                                     *
  * lang.semantics.impl.GenericInstanceStore.getInstance(Generic *
  * Inst                                                         *
  * anceStore.java:136)                                          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The code is fixed.
  

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

  WDS FOR RULES

• Fixed component ID

  5725B6903

Applicable component levels

• R8A0 PSY

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