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https://issues.apache.org/jira/browse/COMPRESS-93?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12877243#action_12877243
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Emmanuel Bourg commented on COMPRESS-93:
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After looking quickly at the code it's straightforward to add support for bzip2
compression to the ZipFile class. However it seems less trivial with
ZipArchiveInput/OutputStream, these classes are strongly tied to the deflate
compression method. Ideally they should be refactored to delegate the
compression work to an external class (either a stream or a class similar to
Inflater/Deflater, I don't know which approach is better).
> Support for alternative ZIP compression methods
> -----------------------------------------------
>
> Key: COMPRESS-93
> URL: https://issues.apache.org/jira/browse/COMPRESS-93
> Project: Commons Compress
> Issue Type: New Feature
> Reporter: Jukka Zitting
>
> As reported in TIKA-346, a ZIP file that uses a compression method other than
> STORED (0) or DEFLATED (8) will cause an IllegalArgumentException ("invalid
> compression method") to be thrown.
> It would be great if commons-compress supported alternative compression
> methods or at least degraded more gracefully when encountering them.
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