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https://issues.apache.org/jira/browse/LUCENE-7053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15171111#comment-15171111
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Robert Muir commented on LUCENE-7053:
-------------------------------------
+1
> Remove deprecated BytesRef#getUTF8SortedAsUTF16Comparator(); remove natural
> comparator in favour of Java 8 one
> --------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-7053
> URL: https://issues.apache.org/jira/browse/LUCENE-7053
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/other
> Reporter: Uwe Schindler
> Assignee: Uwe Schindler
> Fix For: master, 6.0
>
> Attachments: LUCENE-7053.patch, LUCENE-7053.patch, LUCENE-7053.patch,
> LUCENE-7053.patch
>
>
> Followup from LUCENE-7052: This removes the legacy, deprecated
> getUTF8SortedAsUTF16Comparator() in the BytesRef class. I know originally we
> added the different comparators to be able to allow the index term dict to be
> sorted in different order. This never proved to be useful, as many Lucene
> queries rely on the default order. The only codec that used another byte
> order internally was the Lucene 3 one (but it used the unicode spaghetti
> algorithm to reorder its term enums at runtime).
> This patch also removes the BytesRef-Comparator completely and just
> implements compareTo. So all code can rely on natural ordering.
> This patch also cleans up other usages of natural order comparators, e.g. in
> ArrayUtil, because Java 8 natively provides a comparator.
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