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https://issues.apache.org/jira/browse/SANDBOX-248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12662375#action_12662375
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Stefan Bodewig commented on SANDBOX-248:
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Unless I'm looking at a completely wrong file
http://svn.eu.apache.org/viewvc/commons/sandbox/compress/trunk/src/main/java/org/apache/commons/compress/archivers/zip/ZipOutputStream.java?revision=702287
is very different from the latest Ant version.
Ant's ZipOutputStream doesn't extend DeflaterOutputStream and the performance
issue I reported is not addressed (but may not appear either, since
DeflaterOutputStream might be taking care of it).
> ZipOutputStream is slow when compressing big files
> --------------------------------------------------
>
> Key: SANDBOX-248
> URL: https://issues.apache.org/jira/browse/SANDBOX-248
> Project: Commons Sandbox
> Issue Type: Improvement
> Components: Compress
> Reporter: Stefan Bodewig
>
> This has been reported against Ant's version, the grandfather of
> commons-compress. See
> https://issues.apache.org/bugzilla/show_bug.cgi?id=45396
> Splitting up the array passed into Deflater.setInput improves the performance
> dramatically. Ant's change is
> http://svn.apache.org/viewvc/ant/core/trunk/src/main/org/apache/tools/zip/ZipOutputStream.java?r1=579278&r2=677272&pathrev=677272
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