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https://issues.apache.org/jira/browse/GROOVY-12036?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18084295#comment-18084295
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ASF GitHub Bot commented on GROOVY-12036:
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paulk-asert merged PR #2558:
URL: https://github.com/apache/groovy/pull/2558
> GDK: cache Collectors instances in StreamGroovyMethods and
> ParallelCollectionExtensions
> ---------------------------------------------------------------------------------------
>
> Key: GROOVY-12036
> URL: https://issues.apache.org/jira/browse/GROOVY-12036
> Project: Groovy
> Issue Type: Improvement
> Reporter: Paul King
> Assignee: Paul King
> Priority: Major
>
> Cache Collectors.toList() and Collectors.toSet() as static singletons in
> StreamGroovyMethods and ParallelCollectionExtensions, eliminating per-call
> collector allocation in 9 GDK call sites.
> A benefit in Eclipse Collections as noted here:
> https://donraab.medium.com/counting-and-collecting-collectors-d69b7c9aaca0
> Groovy is not a collections library but this is a very minor improvement with
> no downside.
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