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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HADOOP-8558) Hadoop RPC does not allow protocol extension with common interfaces.
Date Tue, 14 Aug 2012 17:59:38 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8558?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Konstantin Shvachko resolved HADOOP-8558.

       Resolution: Not A Problem
    Fix Version/s: 3.0.0
         Assignee: Konstantin Shvachko

Resolving as not a problem.
> Hadoop RPC does not allow protocol extension with common interfaces.
> --------------------------------------------------------------------
>                 Key: HADOOP-8558
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8558
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>             Fix For: 3.0.0
>         Attachments: TestProtocolExtension.java, TestProtocolExtension.java
> Hadoop RPC fails if MyProtocol extends an interface, which is not a VersionedProtocol
even if MyProtocol extends also VersionedProtocol. The reason is that Invocation uses Method.getDeclaringClass(),
which returns the interface class rather than the class of MyProtocol.
> This is incompatible with former versions.

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