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https://issues.apache.org/jira/browse/COMPRESS-583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17383588#comment-17383588
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Michael Osipov commented on COMPRESS-583:
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Did you run diffoscope on it?
> 1.21 generates different output binaries compared to older versions as well
> as on different OSes
> ------------------------------------------------------------------------------------------------
>
> Key: COMPRESS-583
> URL: https://issues.apache.org/jira/browse/COMPRESS-583
> Project: Commons Compress
> Issue Type: Bug
> Affects Versions: 1.21
> Reporter: Chanseok Oh
> Priority: Major
>
> Upgrading {{commons-compress}} had always been generating the same compressed
> output byte-to-byte for the same input (i.e., their SHA checksum didn't
> change between versions). However, starting with 1.21, we noticed it's
> generating different output than what previous versions are generating.
> We also noticed that the same code generates different binaries on different
> OSes. For example, 1.21 on Linux is different from 1.21 on Mac.
> However, at least on the same OS, 1.21 seems to reproducibly generate the
> same output.
> See the context at https://github.com/GoogleContainerTools/jib/pull/3342
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