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Date: Fri, 16 Jun 2017 15:30:00 +0000 (UTC)
From: "Weisen Han (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Message-ID: <JIRA.13080435.1497626941000.34446.1497627000155@Atlassian.JIRA>
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References: <JIRA.13080435.1497626941000@Atlassian.JIRA> <JIRA.13080435.1497626941706@jira-lw-us.apache.org>
Subject: [jira] [Created] (HADOOP-14533) TraceAdmin#run, the size of args
 cannot be less than zero,which is a linklist
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archived-at: Fri, 16 Jun 2017 15:30:11 -0000

Weisen Han created HADOOP-14533:
-----------------------------------

             Summary: TraceAdmin#run, the size of args cannot be less than =
zero,which is a linklist
                 Key: HADOOP-14533
                 URL: https://issues.apache.org/jira/browse/HADOOP-14533
             Project: Hadoop Common
          Issue Type: Bug
    Affects Versions: 3.0.0-alpha3
            Reporter: Weisen Han


{code}
  @Override
  public int run(String argv[]) throws Exception {
      LinkedList<String> args =3D new LinkedList<String>();
      =E2=80=A6=E2=80=A6
         if (args.size() < 0) {
      System.err.println("You must specify an operation.");
      return 1;
    }
=E2=80=A6=E2=80=A6
}
{code}
From the code above, the {{args}}  is a linklist obejct, so it cannot be le=
ss than zero.meaning that code below is redundant=20
{code}
         if (args.size() < 0) {
      System.err.println("You must specify an operation.");
      return 1;
    }
{code}


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