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From "Stefan Bodewig (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COMPRESS-431) Multi input/output stream coders are not yet supported
Date Mon, 11 Dec 2017 16:42:00 GMT

    [ https://issues.apache.org/jira/browse/COMPRESS-431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16286206#comment-16286206
] 

Stefan Bodewig commented on COMPRESS-431:
-----------------------------------------

Without going into too many details, there are certain features in 7z that Commons Compress
doesn't support, yet. Some of them make archives completely unreadable for us and "multi stream
coders" is one of them. I don't think there is anything we could do as we simply cannot read
the archive's content at all.

I'll leave this issue open as an enhancement request that has been here implicitly only so
far.

> Multi input/output stream coders are not yet supported
> ------------------------------------------------------
>
>                 Key: COMPRESS-431
>                 URL: https://issues.apache.org/jira/browse/COMPRESS-431
>             Project: Commons Compress
>          Issue Type: Bug
>            Reporter: Olivier Croquette
>
> I am trying to extract this file:
> https://netcologne.dl.sourceforge.net/project/mingw-w64/Toolchains%20targetting%20Win64/Personal%20Builds/mingw-builds/7.2.0/threads-posix/sjlj/x86_64-7.2.0-release-posix-sjlj-rt_v5-rev0.7z
> Unfortunately, I get an IOException:
> {code}
> Multi input/output stream coders are not yet supported
> {code}
> I don't know what multi streams are, and why they are used in this archive, but it's
unfortunate that an exception is thrown. The tool 7zip on Windows can extract the file without
a problem.
> If multi streams cannot be supported, is there a way to have a soft, more reasonnable
fallback than an IOException?



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