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Posted to common-dev@hadoop.apache.org by "Doug Cutting (JIRA)" <ji...@apache.org> on 2007/09/07 22:41:30 UTC

[jira] Commented: (HADOOP-1859) FSInputDataStream.getPos throws null pointer exception when file has been closed

    [ https://issues.apache.org/jira/browse/HADOOP-1859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12525822 ] 

Doug Cutting commented on HADOOP-1859:
--------------------------------------

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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