[jira] Updated: (HARMONY-5807) [tools][javac] can't 'implement Delayed' compatibly with Sun Java

["Alexey Varlamov (JIRA)" <ji...@apache.org>]

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

Alexey Varlamov updated HARMONY-5807:
-------------------------------------

    Component/s: JDK
        Summary: [tools][javac] can't 'implement Delayed' compatibly with Sun Java  (was: can't 'implement Delayed' compatibly with Sun Java)

> [tools][javac] 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: JDK
>    Affects Versions: 5.0M5
>            Reporter: Doug Cutting
>
> 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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