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From "Tim Ellison (JIRA)" <j...@apache.org>
Subject [jira] Closed: (HARMONY-5807) [classlib][concurrent] can't 'implement Delayed' compatibly with Sun Java
Date Mon, 22 Jun 2009 09:16:08 GMT

     [ https://issues.apache.org/jira/browse/HARMONY-5807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tim Ellison closed HARMONY-5807.
--------------------------------


> [classlib][concurrent] can't 'implement Delayed' compatibly with Sun Java
> -------------------------------------------------------------------------
>
>                 Key: HARMONY-5807
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5807
>             Project: Harmony
>          Issue Type: Bug
>          Components: Classlib
>    Affects Versions: 5.0M5
>            Reporter: Doug Cutting
>            Assignee: Tim Ellison
>         Attachments: DelayedImpl.java, HARMONY-5807.patch
>
>
> In HADOOP-3262 I tried to get Hadoop to compile under Harmony, and ran into a problem.
> I can't find a way to get a class that 'implements Delayed' to compile in both Sun Java
and Harmony.
> Given:
> public interface Comparable<T> {
>   int compareTo(T o);
> }
> public interface Delayed extends Comparable<Delayed> {}
> What is the correct signature for compareTo() in a Delayed implementation.  Harmony requires
the first of the following methods, and doesn't mind the second, while Sun permits only the
second.
> public class DelayedImpl implements Delayed {
>   public int compareTo(Object o);
>   public int compareTo(Delayed o);
> }
> My guess is that Sun is correct and that this is a bug in Harmony.  Is that right?

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