RS01369: GENERIC ARGUMENTS IN FUNCTIONS CAUSE EXCEPTION WHILE GENERATING RULESET IN DECISION ENGINE MODE

Operational Decision Manager V8.6.0.2 Fix Pack

APAR status

• Closed as fixed if next.

Error description

• With "Decision Engine for z/OS" ruleset build mode, generating
  ruleset for rule project that contains generic methods in
  functions may cause exceptions.
  
  For example, with methods using generic comparator parameter in
  function IRL code, an "Cannot convert xom.yourComparatorName to
  type java.util.Comparator<java.lang.Object>" error will be
  reported with the following trace:
  com.ibm.rules.container.EngineOutlineSerializationException:
  java.lang.RuntimeException: Cannot convert xom.
  yourComparatorName to type java.util.Comparator<java.lang.
  Object>
       at com.ibm.rules.container.EnginePackageOpenXMLProducer.
  writeJar(EnginePackageOpenXMLProducer.java:227)
       at com.ibm.rules.container.EnginePackageOpenXMLProducer.
  writeJar(EnginePackageOpenXMLProducer.java:235)
       at com.ibm.rules.container.EngineOutlineSerializer.
  writeJar(EngineOutlineSerializer.java:55)
       at com.ibm.rules.studio.rve.builder.
  RVERulesetArchiveExporter.serializeEngineOutline(Unknown Source)
  
       at com.ibm.rules.studio.rve.builder.
  RVERulesetArchiveExporter.export(Unknown Source)
       ...
  Caused by: java.lang.RuntimeException: Cannot convert xom.
  ActionOutActionOutCodeComparator to type java.util.
  Comparator<java.lang.Object>
       at com.ibm.rules.engine.lang.semantics.transform.
  SemMainLangTransformer.convertTransformedValue(
  SemMainLangTransformer.java:663)
       at com.ibm.rules.engine.lang.semantics.transform.
  SemMainLangTransformer.transformValue(SemMainLangTransformer.
  java:615)
       at com.ibm.rules.engine.lang.semantics.transform.
  SemMainLangTransformer.transformValues(SemMainLangTransformer.
  java:759)
       at com.ibm.rules.engine.lang.semantics.transform.
  BaseTransformer.mainTransformValues(BaseTransformer.java:448)
       ...
  

Local fix

• Use B2X methods for all generic methods in the function code.
  

Problem summary

• generics method are not handled properly in the decision engine
  code generator . This issue will be addressed in update of V8.5
  

Problem conclusion

Temporary fix

• Move the function with generic into B2X code
  

Comments

APAR Information

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

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

Modules/Macros

• 999
  

Fix information

Applicable component levels

• R850 PSY

     UP