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From "Stefan Bodewig (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COMPRESS-16) unable to extract a TAR file that contains an entry which is 10 GB in size
Date Mon, 05 Dec 2011 09:59:40 GMT

    [ https://issues.apache.org/jira/browse/COMPRESS-16?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13162702#comment-13162702
] 

Stefan Bodewig commented on COMPRESS-16:
----------------------------------------

Read-support for the GNU version is in with svn revision 1210386

Before I look into write support I'll need to reshuffle a few things so we can
have testcases.  The current run-it Maven profile is not really sufficient as it
would mean you'd have to run all ZIP ITs as well.
                
> unable to extract a TAR file that contains an entry which is 10 GB in size
> --------------------------------------------------------------------------
>
>                 Key: COMPRESS-16
>                 URL: https://issues.apache.org/jira/browse/COMPRESS-16
>             Project: Commons Compress
>          Issue Type: Bug
>          Components: Archivers
>         Environment: I am using win xp sp3, but this should be platform independent.
>            Reporter: Sam Smith
>         Attachments: 0001-Accept-GNU-tar-files-with-entries-over-8GB-in-size.patch, 0002-Allow-creating-tar-archives-with-files-over-8GB.patch,
ant-8GB-tar.patch, patch-for-compress.txt
>
>
> I made a TAR file which contains a file entry where the file is 10 GB in size.
> When I attempt to extract the file using TarInputStream, it fails with the following
stack trace:
> 	java.io.IOException: unexpected EOF with 24064 bytes unread
> 		at org.apache.commons.compress.archivers.tar.TarInputStream.read(TarInputStream.java:348)
> 		at org.apache.commons.compress.archivers.tar.TarInputStream.copyEntryContents(TarInputStream.java:388)
> So, TarInputStream does not seem to support large (> 8 GB?) files.
> Here is something else to note: I created that TAR file using TarOutputStream , which
did not complain when asked to write a 10 GB file into the TAR file, so I assume that TarOutputStream
has no file size limits?  That, or does it silently create corrupted TAR files (which would
be the worst situation of all...)?

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