RS03619: FUNCTION LOST DURING CONVERSION TO B2XA

APAR status

• Closed as program error.

Error description

• If B2X using XOM method that has a parameter of type T...
  (Generic method), then the B2X method is not translated to
  B2XA.
  

Local fix

• This is for example seen in CollectionUtils.containsAny.
  Instead of this function, you can instead use:
  
  !CollectionUtils
  .intersection(Arrays.asList(numbers),Arrays.asList(codes)).isEmp
  ty()
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users migrating to decision engine.                          *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * If B2X using XOM method that has a parameter of type T...    *
  * (Generic method), then the B2X method is not translated to   *
  * B2XA.                                                        *
  * java.lang.ArrayIndexOutOfBoundsException: Array index out of *
  * range: 0                                                     *
  *     at                                                       *
  * com.ibm.rules.engine.lang.semantics.impl.SemGenericMethodImp *
  * l.inferTypeFromSameGenericDefinition(SemGenericMethodImpl.ja *
  * va:479)                                                      *
  *     at                                                       *
  * com.ibm.rules.engine.lang.semantics.impl.SemGenericMethodImp *
  * l.inferType2(SemGenericMethodImpl.java:382)                  *
  *     at                                                       *
  * com.ibm.rules.engine.lang.semantics.impl.SemGenericMethodImp *
  * l.inferType(SemGenericMethodImpl.java:340)                   *
  *     at                                                       *
  * com.ibm.rules.engine.lang.semantics.impl.SemGenericMethodImp *
  * l.inferTypes(SemGenericMethodImpl.java:265)                  *
  *     at                                                       *
  * com.ibm.rules.engine.lang.semantics.impl.SemGenericMethodImp *
  * l.match(SemGenericMethodImpl.java:82)                        *
  *     at                                                       *
  * com.ibm.rules.engine.lang.semantics.util.SemModelUtil.getMat *
  * chingMethods(SemModelUtil.java:153)                          *
  *     at                                                       *
  * com.ibm.rules.engine.lang.semantics.SemClassExtra.getMatchin *
  * gMethods(SemClassExtra.java:508)                             *
  *     at                                                       *
  * com.ibm.rules.engine.lang.semantics.SemClassExtra.getMatchin *
  * gMethod(SemClassExtra.java:458)                              *
  *     at                                                       *
  * com.ibm.rules.engine.lang.semantics.SemClassExtra.getMatchin *
  * gMethod(SemClassExtra.java:452)                              *
  *     at                                                       *
  * com.ibm.rules.engine.lang.semantics.SemClassExtra.getMatchin *
  * gMethod(SemClassExtra.java:447)                              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• The code is fixed.
  

Temporary fix

• This is for example seen in CollectionUtils.containsAny.
  Instead of this function, you can instead use:
  
  !CollectionUtils
  .intersection(Arrays.asList(numbers),Arrays.asList(codes)).isEmp
  ty()
  

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