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https://issues.apache.org/jira/browse/LUCENE-9632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17244587#comment-17244587
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Adrien Grand commented on LUCENE-9632:
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+1 to drop the ArrayUtil/CollectionUtil tim sorts, but like Uwe said we still
need TimSorter.
bq. In addition: Arrays/Collections.sort() makes clones of the objects instead
of sorting in place.
I know it used to be true for Collections.sort() but I don't think this is the
case anymore, at least not with ArrayList.
> Replace our TimSort with JDK TimSort
> ------------------------------------
>
> Key: LUCENE-9632
> URL: https://issues.apache.org/jira/browse/LUCENE-9632
> Project: Lucene - Core
> Issue Type: Improvement
> Affects Versions: master (9.0)
> Reporter: Mike Drob
> Priority: Major
>
> JDK 11 has a TimSort with very similar lineage to our TimSort (written by
> Josh Bloch, based on Tim Peter's python list sort), we should consider
> replacing our fork with a version that we don't have to maintain.
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