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https://issues.apache.org/jira/browse/KAFKA-5911?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu resolved KAFKA-5911.
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Resolution: Later
> Avoid creation of extra Map for futures in KafkaAdminClient
> -----------------------------------------------------------
>
> Key: KAFKA-5911
> URL: https://issues.apache.org/jira/browse/KAFKA-5911
> Project: Kafka
> Issue Type: Bug
> Reporter: Ted Yu
> Labels: client
> Attachments: 5911.v1.txt
>
>
> In various methods from KafkaAdminClient, there is extra Map created when
> constructing XXResult instance.
> e.g.
> {code}
> return new DescribeReplicaLogDirResult(new
> HashMap<TopicPartitionReplica, KafkaFuture<ReplicaLogDirInfo>>(futures));
> {code}
> Prior to returning, futures Map is already filled.
> Calling get() and values() does not involve the internals of HashMap when we
> consider thread-safety.
> The extra Map doesn't need to be created.
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