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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1859) FSInputDataStream.getPos throws null pointer exception when file has been closed
Date Sat, 08 Sep 2007 00:15:30 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12525872
] 

Raghu Angadi commented on HADOOP-1859:
--------------------------------------

BufferedInputStream.available() throws an IOException (this is closest to getPos()). And some
or all of the other calls like read(), seek() throw IOException if the stream is closed. In
fact, if getPos() used BufferedInputStream.avaiable() instead of '(cur - pos)' in the calculation,
it would have resulted in an IOException.

> 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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