[jira] [Created] (FLEX-34727) ArrayList dispatches a CollectionEvent with an invalid "items" array after removeAll()

["Tamás Nepusz (JIRA)" <ji...@apache.org>]

Tamás Nepusz created FLEX-34727:
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             Summary: ArrayList dispatches a CollectionEvent with an invalid "items" array after removeAll()
                 Key: FLEX-34727
                 URL: https://issues.apache.org/jira/browse/FLEX-34727
             Project: Apache Flex
          Issue Type: Bug
          Components: Collections
    Affects Versions: Apache Flex 4.13.0
         Environment: Mac OS X 10.9; very likely to affect other operating systems as well
            Reporter: Tamás Nepusz
            Priority: Trivial


Invoking {{removeAll()}} on an {{ArrayList}} dispatches a {{CollectionEvent}} with kind = {{CollectionEvent.RESET}}. According to the documentation of the {{items}} property of {{CollectionEvent}},

{quote}
When the kind is CollectionEventKind.REFRESH or CollectionEventKind.RESET, this array has zero length.
{quote}

The event dispatched from the {{ArrayList}} contains a single {{null}} item instead, which contradicts the documentation.

The issue can easily be fixed by updating {{ArrayList#internalDispatchEvent()}} to treat {{RESET}} and {{REFRESH}} events specially so the {{items}} array of the event is never updated in these cases.



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