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https://issues.apache.org/jira/browse/COMPRESS-391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16005301#comment-16005301
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Zbynek Vyskovsky commented on COMPRESS-391:
-------------------------------------------

The guys from Zip were quite quick, it's already published in preliminary 
version: 
https://support.pkware.com/display/PKZIP/Proposed+ZIP+Format+Specification+Additions

So probably worth sticking to this extra field and implement both reading and 
writing... What do you think?


> Zip entries alignment
> ---------------------
>
>                 Key: COMPRESS-391
>                 URL: https://issues.apache.org/jira/browse/COMPRESS-391
>             Project: Commons Compress
>          Issue Type: New Feature
>          Components: Archivers
>    Affects Versions: 1.13
>            Reporter: Zbynek Vyskovsky
>              Labels: features, github-import, patch
>             Fix For: 1.14
>
>
> Similarly to COMPRESS-390, there are requirements of the zip content to be 
> mapped directly into memory and therefore may require special alignment on 
> the embedded files. E.g. libraries may be aligned to page (4096-bytes) 
> boundary, images on 4-bytes boundary etc. By alignment it's meant the offset 
> from the beginning of file where the actual data stream starts, not the 
> header.
> One of the cases was (still is?) Android APK for which zipalign utility was 
> created.
> It would be useful if commons-compress ZipArchiveOutputStream supports 
> something similar directly in its API.



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