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From "Tim Ellison (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-6395) [classlib][luni] Arrays.sort(double []) will result in StackOverflowError for specific arrays input
Date Fri, 04 Dec 2009 13:58:20 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-6395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12785935#action_12785935
] 

Tim Ellison commented on HARMONY-6395:
--------------------------------------

Oh, and the original patch only fixed the double case, there was the identical code for float
that was left unfixed.

> [classlib][luni] Arrays.sort(double []) will result in StackOverflowError for specific
arrays input
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HARMONY-6395
>                 URL: https://issues.apache.org/jira/browse/HARMONY-6395
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>    Affects Versions: 5.0M11
>            Reporter: Jim Yu
>            Assignee: Sean Qiu
>         Attachments: harmony-6395-2.patch, HARMONY-6395.diff
>
>
> There is a simple testcase as below. You can see StackOverflowError if run this testcase.
This is a defect of Arrays.sort(double []), I have attached a fix for it.
> import java.util.Arrays;
> public class SortTest {
>     public static void main(String[] args) {
>         double[] array = { Double.NaN, 1.0, 2.0, Double.NaN, Double.NaN, 3.0,
>                 4.0 };
>         displayArray(array);
>         Arrays.sort(array);
>         displayArray(array);
>         System.out.println();
>     }
>     private static void displayArray(double[] array) {
>         for (double d : array)
>             System.out.print(d + " ");
>         System.out.println();
>     }
> }

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