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https://issues.apache.org/jira/browse/HADOOP-17111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17150137#comment-17150137
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Akira Ajisaka commented on HADOOP-17111:
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Thanks [~ahussein] for the cleanup. Would you sort the imports?
For example, in TestZKRMStateStorePerf.java, java.util.Optional should be moved
between java.util.Map and java.util.Set.
> Replace Guava Optional with Java8+ Optional
> -------------------------------------------
>
> Key: HADOOP-17111
> URL: https://issues.apache.org/jira/browse/HADOOP-17111
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Ahmed Hussein
> Assignee: Ahmed Hussein
> Priority: Major
> Attachments: HADOOP-17111.001.patch
>
>
> {code:java}
> Targets
> Occurrences of 'com.google.common.base.Optional' in project with mask
> '*.java'
> Found Occurrences (3 usages found)
> org.apache.hadoop.yarn.server.nodemanager (2 usages found)
> DefaultContainerExecutor.java (1 usage found)
> 71 import com.google.common.base.Optional;
> LinuxContainerExecutor.java (1 usage found)
> 22 import com.google.common.base.Optional;
> org.apache.hadoop.yarn.server.resourcemanager.recovery (1 usage found)
> TestZKRMStateStorePerf.java (1 usage found)
> 21 import com.google.common.base.Optional;
> {code}
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