[jira] [Updated] (HBASE-6340) HBase RPC does not allow protocol extension with common interfaces.

["Konstantin Shvachko (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-6340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Konstantin Shvachko updated HBASE-6340:
---------------------------------------

    Attachment: RPCInvocation.patch

Here is the patch. As I said I am just passing the protocol to the Invocation as {{declaringClass}}, instead of extracting it from the method as it is currently implemented.
Also provide a test case, which fails with current impl and passes with the new one.
                
> HBase RPC does not allow protocol extension with common interfaces.
> -------------------------------------------------------------------
>
>                 Key: HBASE-6340
>                 URL: https://issues.apache.org/jira/browse/HBASE-6340
>             Project: HBase
>          Issue Type: Bug
>          Components: coprocessors, regionserver
>    Affects Versions: 0.92.0
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>         Attachments: RPCInvocation.patch
>
>
> HBase RPC fails if MyProtocol extends an interface, which is not a VersionedProtocol even if MyProtocol also directly extends VersionedProtocol. The reason is that rpc Invocation uses Method.getDeclaringClass(), which returns the interface class rather than the class of MyProtocol.

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