[ 
https://issues.apache.org/jira/browse/COMPRESS-380?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16315139#comment-16315139
 ] 

Stefan Bodewig commented on COMPRESS-380:
-----------------------------------------

It looks as if I have been able to at least fix this particular bug which 
likely stems from porting C code that assumed unsigned bytes.

> 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, archive.zip, 
> archive64.zip, compress-380.diff, hello.world, input2
>
>
> 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



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

Reply via email to