[jira] [Created] (HDFS-12309) Incorrect null check in the AdminHelper.java

[Oleg Danilov (JIRA)]

Oleg Danilov created HDFS-12309:
-----------------------------------

             Summary: Incorrect null check in the AdminHelper.java
                 Key: HDFS-12309
                 URL: https://issues.apache.org/jira/browse/HDFS-12309
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Oleg Danilov
            Priority: Trivial


'!= null' is not required there:

line 147-150:

{code:java}
    public HelpCommand(Command[] commands) {
      Preconditions.checkNotNull(commands != null);
      this.commands = commands;
    }
{code}




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