[jira] [Created] (KAFKA-5911) Avoid creation of extra Map for futures in KafkaAdminClient

["Ted Yu (JIRA)" <ji...@apache.org>]

Ted Yu created KAFKA-5911:
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             Summary: 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


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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