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Posted to dev@hbase.apache.org by "BELUGA BEHR (JIRA)" <ji...@apache.org> on 2018/01/01 22:10:00 UTC

[jira] [Created] (HBASE-19682) Use Collections.emptyList() For Empty List Values

BELUGA BEHR created HBASE-19682:
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             Summary: Use Collections.emptyList() For Empty List Values
                 Key: HBASE-19682
                 URL: https://issues.apache.org/jira/browse/HBASE-19682
             Project: HBase
          Issue Type: Improvement
          Components: hbase
    Affects Versions: 3.0.0
            Reporter: BELUGA BEHR
            Priority: Minor


Use {{Collection.emptyList()}} for returning an empty list instead of {{return new ArrayList<> ()}}.  The default constructor creates a buffer of size 10 for _ArrayList_ therefore, returning this static value saves on some memory and GC pressure and saves time not having to allocate a new internally buffer for each instantiation.



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