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https://issues.apache.org/jira/browse/HADOOP-1859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12525822
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Doug Cutting commented on HADOOP-1859:
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What should it do? I always thought it was an error to call any method on a
stream after it is closed. NullPointerException isn't the most friendly.
Perhaps it should be IllegalOperationException. Is that what you want?
> FSInputDataStream.getPos throws null pointer exception when file has been
> closed
> --------------------------------------------------------------------------------
>
> Key: HADOOP-1859
> URL: https://issues.apache.org/jira/browse/HADOOP-1859
> Project: Hadoop
> Issue Type: Bug
> Components: fs
> Affects Versions: 0.14.1
> Reporter: Benjamin Reed
>
> If an FSInputDataStream object has been closed, invoking getPos() will cause
> a NullPointerException. This is because BufferedInputStream.close() sets in
> to null, and Buffer.getPos() does not check for in being null.
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