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From "Hiroshi Ikeda (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7434) Use generics appropriately in RPCEngine and reduce casts, with fixing a related bug of breaking thread-safety in HConnectionManager
Date Tue, 25 Dec 2012 08:04:14 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13539386#comment-13539386
] 

Hiroshi Ikeda commented on HBASE-7434:
--------------------------------------

Created review board.
https://reviews.apache.org/r/8761/

Thanks for review.
                
> Use generics appropriately in RPCEngine and reduce casts, with fixing a related bug of
breaking thread-safety in HConnectionManager
> -----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-7434
>                 URL: https://issues.apache.org/jira/browse/HBASE-7434
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Hiroshi Ikeda
>            Assignee: Hiroshi Ikeda
>            Priority: Minor
>         Attachments: HBASE-7434.patch
>
>
> In RpcEngine,
> {code}
>   VersionedProtocol getProxy(Class<? extends VersionedProtocol> protocol, ...)
> {code}
> should be
> {code}
>   <T extends VersionedProtocol> T getProxy(Class<T> protocol, ...)
> {code}
> Also, while removing casts I encountered a bug of the method HConnectionManager.HConnectionImplementation.getProtocol()
using broken logic just like double-checked locking for HashMap.

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