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