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From "Gary Gregory (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (VFS-505) Reading from an input stream in a .tar ends up with a 'reading from an output buffer' exception
Date Wed, 27 Nov 2013 18:45:35 GMT

    [ https://issues.apache.org/jira/browse/VFS-505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13834023#comment-13834023
] 

Gary Gregory commented on VFS-505:
----------------------------------

Hello Robbie,

Can you try this with the HEAD of trunk? Tar support has changed.

See "Building Commons VFS" here: https://commons.apache.org/proper/commons-vfs/download.html

Thank you,
Gary

> Reading from an input stream in a .tar ends up with a 'reading from an output buffer'
exception
> -----------------------------------------------------------------------------------------------
>
>                 Key: VFS-505
>                 URL: https://issues.apache.org/jira/browse/VFS-505
>             Project: Commons VFS
>          Issue Type: Bug
>    Affects Versions: 2.0
>            Reporter: Robbie Haertel
>
> This is probably the same issue as https://issues.apache.org/jira/browse/VFS-350, but
for version 2.0 and for the .tar reader.
> The problem: After successfully reading some files from the .tar, I unexpectedly get:
> {noformat}
> Caused by: java.io.IOException: reading from an output buffer
> at org.apache.commons.vfs2.provider.tar.TarBuffer.readRecord(TarBuffer.java:211)
> at org.apache.commons.vfs2.provider.tar.TarInputStream.read(TarInputStream.java:384)
> at java.io.BufferedInputStream.read1(BufferedInputStream.java:273)
> at java.io.BufferedInputStream.read(BufferedInputStream.java:334)
> at org.apache.commons.vfs2.util.MonitorInputStream.read(MonitorInputStream.java:100)
> at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:283)
> at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:325)
> at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177)
> at java.io.InputStreamReader.read(InputStreamReader.java:184)
> at com.google.common.io.LineReader.readLine(LineReader.java:76)
> at edu.byu.nlp.io.LineReaderIterator.readLineQuietly(LineReaderIterator.java:31)
> {noformat}
> Note that I have several read-only streams open on the same .tar file. The are being
read on the same thread, but reads to different files are interleaved. Even more interesting
is that the same code path works fine when only reading a small subset of the data (this,
too, includes interleaving reads to different files in the same .tar file). It may be a function
of the number of bytes read.
> Note that I do NOT have any files open for writing.



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