[jira] [Created] (HBASE-20737) put collection into ArrayList instead of addAll function

[taiyinglee (JIRA)]

taiyinglee created HBASE-20737:
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             Summary: put collection into ArrayList instead of addAll function
                 Key: HBASE-20737
                 URL: https://issues.apache.org/jira/browse/HBASE-20737
             Project: HBase
          Issue Type: Improvement
    Affects Versions: 3.0.0
            Reporter: taiyinglee


[https://docs.oracle.com/javase/7/docs/api/java/util/Collection.html]

[https://docs.oracle.com/javase/7/docs/api/java/util/ArrayList.html]

[https://docs.oracle.com/javase/7/docs/api/java/util/Set.html]

change

List<Map.Entry<ServerName, Integer>> entries = new ArrayList<>();
 entries.addAll(lastSent.entrySet());

to

List<Map.Entry<ServerName, Integer>> entries = new 
ArrayList<>(lastSent.entrySet());



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