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https://issues.apache.org/jira/browse/KAFKA-5820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guozhang Wang resolved KAFKA-5820.
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Resolution: Fixed
Fix Version/s: 1.0.0
Issue resolved by pull request 3777
[https://github.com/apache/kafka/pull/3777]
> Remove unneeded synchronized keyword in StreamThread
> ----------------------------------------------------
>
> Key: KAFKA-5820
> URL: https://issues.apache.org/jira/browse/KAFKA-5820
> Project: Kafka
> Issue Type: Improvement
> Reporter: Ted Yu
> Priority: Minor
> Fix For: 1.0.0
>
>
> There are three methods in StreamThread which have unnecessary synchronized
> keyword since the variable accessed, state, is volatile :
> isRunningAndNotRebalancing
> isRunning
> shutdown
> synchronized keyword can be dropped for these methods.
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