Hiroshi Ikeda created HBASE-15802:
-------------------------------------

             Summary:  ConnectionUtils should use ThreadLocalRandom instead of 
Random
                 Key: HBASE-15802
                 URL: https://issues.apache.org/jira/browse/HBASE-15802
             Project: HBase
          Issue Type: Improvement
            Reporter: Hiroshi Ikeda
            Priority: Minor


{code}
public final class ConnectionUtils {
...skip...
  private static final Random RANDOM = new Random();
{code}

In general, static fields are accessed by multi-threads. The class Random is 
thread-safe but ThreadLocalRandom is more preferable because of less contention.



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