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Posted to commits@harmony.apache.org by "Jesse Wilson (JIRA)" <ji...@apache.org> on 2009/06/16 00:30:07 UTC
[jira] Updated: (HARMONY-6236) ArrayList breaks when given
concurrent collections as input
[ https://issues.apache.org/jira/browse/HARMONY-6236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jesse Wilson updated HARMONY-6236:
----------------------------------
Attachment: ArrayList_on_concurrent_collections.patch
> ArrayList breaks when given concurrent collections as input
> -----------------------------------------------------------
>
> Key: HARMONY-6236
> URL: https://issues.apache.org/jira/browse/HARMONY-6236
> Project: Harmony
> Issue Type: Bug
> Components: Classlib
> Affects Versions: 5.0M10
> Environment: SVN Revision: 784898
> Reporter: Jesse Wilson
> Attachments: ArrayList_on_concurrent_collections.patch
>
> Original Estimate: 0.5h
> Remaining Estimate: 0.5h
>
> new ArrayList() and ArrayList.addAll(Collection) assume the passed-in collection will not change between calls.
> In the attached test case, a special collection simulates a background thread calling "remove" after the ArrayList has called size(), but before it has called "toArray()". This causes the collection to return a null-padded array, which leads to a corrupt ArrayList. The attached patch fixes the problem.
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