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https://issues.apache.org/jira/browse/HADOOP-8179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13231319#comment-13231319
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Daryn Sharp commented on HADOOP-8179:
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Which file/line is making your IDE unhappy? I don't see the exact line, but I
think you are referring to the copymerge command? I see that it's opening the
file inside of a try block with a finally clause that closes the stream. It
looks like the open - the first line of the try - should be moved to line
before the try.
> risk of NPE in CopyCommands processArguments()
> ----------------------------------------------
>
> Key: HADOOP-8179
> URL: https://issues.apache.org/jira/browse/HADOOP-8179
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 0.24.0
> Reporter: Steve Loughran
> Priority: Minor
>
> My IDE is warning me that the {{is.close()}} method will NPE if the {{is =
> src.fs.open(src.path);}} call raises an exception, which could happen if the
> source path could not be opened. There should be an if (is!=null) wrapper
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