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https://issues.apache.org/jira/browse/COMPRESS-380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16289388#comment-16289388
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Christian Marquez Grabia commented on COMPRESS-380:
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[~dawid.weiss] Thanks for the updates. I have created this classes based on
different research on multiple deflate de-compression samples I was able to
find using the masking concepts for the literals / distance tables as well as
the state concept, all brought into Java 'style'.
I left it all to jira since this is more about the providing patches to the
apache library I figured it would be applicable mostly to jira users (didn't
want to add noise around it)
> Support for ENHANCED_DEFLATED (Deflate64) in ZIP files
> ------------------------------------------------------
>
> Key: COMPRESS-380
> URL: https://issues.apache.org/jira/browse/COMPRESS-380
> Project: Commons Compress
> Issue Type: New Feature
> Reporter: Dawid Weiss
> Attachments: compress-380.diff
>
>
> Some of the (large) ZIP files we try to process currently will throw this:
> {code}
> UnsupportedZipFeatureException: unsupported feature method
> 'ENHANCED_DEFLATED'
> {code}
> which is a bummer since JDK's implementation also doesn't support Deflate64.
> This seems to be PKWare's extensions, although code to decrypt it exists in
> zlib (and is appropriately licensed, I believe).
> https://github.com/madler/zlib/tree/master/contrib/infback9
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