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https://issues.apache.org/jira/browse/HADOOP-14533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weisen Han updated HADOOP-14533:
--------------------------------
Component/s: tracing
> 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
> Components: common, tracing
> Affects Versions: 3.0.0-alpha3
> Reporter: Weisen Han
>
> {code}
> @Override
> public int run(String argv[]) throws Exception {
> LinkedList<String> args = new LinkedList<String>();
> ……
> if (args.size() < 0) {
> System.err.println("You must specify an operation.");
> return 1;
> }
> ……
> }
> {code}
> From the code above, the {{args}} is a linklist obejct, so it cannot be less
> than zero.meaning that code below is redundant
> {code}
> if (args.size() < 0) {
> System.err.println("You must specify an operation.");
> return 1;
> }
> {code}
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