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Posted to issues@commons.apache.org by "Cyrille Artho (JIRA)" <ji...@apache.org> on 2014/04/10 03:59:15 UTC

[jira] [Updated] (COLLECTIONS-512) equals/hashCode mismatch

     [ https://issues.apache.org/jira/browse/COLLECTIONS-512?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cyrille Artho updated COLLECTIONS-512:
--------------------------------------

    Attachment: BugReport1.java

This file contains two unit tests (for JUnit) to reproduce the problems.

> equals/hashCode mismatch
> ------------------------
>
>                 Key: COLLECTIONS-512
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-512
>             Project: Commons Collections
>          Issue Type: Bug
>          Components: Collection, Comparator
>    Affects Versions: 4.0
>         Environment: Mac OS 10.9, Java 6 and Java 7
>            Reporter: Cyrille Artho
>         Attachments: BugReport1.java
>
>
> We used Randoop on the collection classes, which found several test cases where two objects are equal but their hash code differs.
> I will attach a file containing two test cases that are different; the other tests seem to be longer versions showing the same issue.



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