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https://issues.apache.org/jira/browse/COMPRESS-380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16305207#comment-16305207
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Stefan Bodewig commented on COMPRESS-380:
-----------------------------------------

[~dawid.weiss], great. I'm not surprised the streams look identical for small 
inputs. Still it will be a good start for a testcase that executes the 
integration with the ZipFile.

> 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
>             Fix For: 1.16
>
>         Attachments: archive-deflate.zip, archive-deflate64.zip, 
> compress-380.diff, hello.world
>
>
> 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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