[jira] [Created] (HIVE-8806) Potential null dereference in Metrics#incrementCounter()

["Ted Yu (JIRA)" <ji...@apache.org>]

Ted Yu created HIVE-8806:
----------------------------

             Summary: Potential null dereference in Metrics#incrementCounter()
                 Key: HIVE-8806
                 URL: https://issues.apache.org/jira/browse/HIVE-8806
             Project: Hive
          Issue Type: Bug
            Reporter: Ted Yu
            Priority: Minor


{code}
      if (!metrics.hasKey(name)) {
        value = Long.valueOf(increment);
        set(name, value);
      } else {
        value = ((Long)get(name)) + increment;
        set(name, value);
      }
{code}
In the else block, if get(name) returns null, unboxing null object would lead to exception.



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