[jira] Resolved: (HARMONY-6323) [classlib] [luni] Simplify and speed-up collection shuffle, add a non-probabilistic test

["Tim Ellison (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HARMONY-6323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Ellison resolved HARMONY-6323.
----------------------------------

       Resolution: Fixed
    Fix Version/s: 5.0M12

Thanks Jesse.

Patch applied to LUNI module at repo revision r810887.

Please verify it was applied as you expected.


> [classlib] [luni] Simplify and speed-up collection shuffle, add a non-probabilistic test
> ----------------------------------------------------------------------------------------
>
>                 Key: HARMONY-6323
>                 URL: https://issues.apache.org/jira/browse/HARMONY-6323
>             Project: Harmony
>          Issue Type: Improvement
>          Components: Classlib
>         Environment: SVN Revision 801399
>            Reporter: Jesse Wilson
>            Assignee: Tim Ellison
>            Priority: Minor
>             Fix For: 5.0M12
>
>         Attachments: Shuffle-fixes.patch
>
>   Original Estimate: 0.25h
>  Remaining Estimate: 0.25h
>
> Shuffle needlessly tests Random.nextInt() for a negative value
> It iterates from index N-1 to 0, which means it always swaps index 0 with itself needlessly.
> It is only tested with probabilistic tests, the patch adds a proper test. Note that the attached test also passes on the RI.

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