IZ78168: ABSTRACTCOLLECTION.TOARRAY() THROWS NOSUCHELEMENTEXCEPTION

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: java.util.NoSuchElementException
  at serp.util.LookaheadIterator.next(LookaheadIterator.java:57)
  at
  java.util.AbstractCollection.toArray(AbstractCollection.java:304
  )
  at
  com.exigen.ef.persistence.util.state.StateChangeListenerRegistry
  .notifyStateChanges(StateChangeListenerRegistry.java:79)
  at
  com.exigen.ef.persistence.util.state.StateManager.notifyStateCha
  nges(StateManager.java:824)
  at
  com.exigen.ef.persistence.util.state.StateManager.nofifyEntitiCo
  llectionAttributeChange(StateManager.java:785)
  at
  com.exigen.ef.persistence.util.state.BOMCollectionStateManager.n
  otifyListener(BOMCollectionStateManager.java:176)
  at
  com.exigen.ef.persistence.util.state.StateChangeListenerRegistry
  .notifyStateChanges(StateChangeListenerRegistry.java:92)
  at
  com.exigen.ef.persistence.util.state.BOMCollectionStateManager.n
  otifyStateChanges(BOMCollectionStateManager.java:171)
  at
  com.exigen.ef.persistence.util.state.BOMCollectionStateManager.n
  otifyEntityAttributeChange(BOMCollectionStateManager.java:109)
  at
  com.exigen.ef.persistence.util.state.StateManager.notifyListener
  (StateManager.java:837)
  at
  com.exigen.ef.persistence.util.state.StateChangeListenerRegistry
  .notifyStateChanges(StateChangeListenerRegistry.java:92)
  at
  com.exigen.ef.persistence.util.state.StateManager.notifyStateCha
  nges(StateManager.java:824)
  at
  com.exigen.ef.persistence.util.state.StateManager.notifySimpleAt
  tributeChange(StateManager.java:647)
  at
  com.exigen.ipb.infrastructure.CustomerJDO.setOccupation(Customer
  JDO.java:1487)
  .
  

Local fix

Problem summary

• As to java.util.AbstractCollection.toArray() method, according
  to Java Spec:
  1. It should return an new array containing all the elements
  returned by its iterator. (the same order, consecutive stored,
  start from 0 index)
  2. The length of the new array is equal to the number of
  elements returned by its iterator. (The size of the collection
  may change during iteration in concurrent environment)
  Our implementation of this method may cause
  NoSuchElementException in such a concurrent environment:
  The size of collection may changed during iteration and iterator
  doesn't have next element when index is smaller than the
  previous size.
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR9
  .
  The java.util.AbstractCollection.toArray() method has been
  updated to prevent such an unexpected exception.
  .
  To obtain the fix:
  Install build 20100909 or later
  

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

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R600 PSN

     UP