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Date: Tue, 16 Jun 2009 02:31:07 -0700 (PDT)
From: "Tim Ellison (JIRA)" <jira@apache.org>
To: commits@harmony.apache.org
Subject: [jira] Updated: (HARMONY-6236) [classlib][luni] ArrayList breaks
 when given concurrent collections as input
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     [ https://issues.apache.org/jira/browse/HARMONY-6236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Ellison updated HARMONY-6236:
---------------------------------

    Fix Version/s: 5.0M11

> [classlib][luni] 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
>            Assignee: Tim Ellison
>             Fix For: 5.0M11
>
>         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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