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From "Jesse Wilson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-6323) [classlib] [luni] Simplify and speed-up collection shuffle, add a non-probabilistic test
Date Sun, 06 Sep 2009 05:56:57 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-6323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12751830#action_12751830

Jesse Wilson commented on HARMONY-6323:

I have no idea. I think I must have uploaded a working draft of the patch. I should be more

> [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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