Chanseok Oh created COMPRESS-583:
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Summary: 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
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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