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https://issues.apache.org/jira/browse/HBASE-7434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13539385#comment-13539385
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Lars Hofhansl commented on HBASE-7434:
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Nice change. Could you upload to review board for easier 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
> 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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