Ahmed Hussein created HADOOP-17111:
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             Summary: 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



{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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