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https://issues.apache.org/jira/browse/HADOOP-17490?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arturo Bernal resolved HADOOP-17490.
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Resolution: Fixed
> Minor improvement use isEmpty
> -----------------------------
>
> Key: HADOOP-17490
> URL: https://issues.apache.org/jira/browse/HADOOP-17490
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Arturo Bernal
> Priority: Minor
>
> Use isEmpty instead size() > o.
>
> {{size()}} can be *O(1)* or *O(N)*, depending on the {{data structure}};
> {{.isEmpty()}} is never *O(N)*.
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