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https://issues.apache.org/jira/browse/LANG-1032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18088899#comment-18088899
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Gary D. Gregory commented on LANG-1032:
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"For performance reasons" needs to be backed up by a JMH test, otherwise there
is nothing to do IMO.
> void StringUtils.join( Iterable<String>, StringBuilder )
> --------------------------------------------------------
>
> Key: LANG-1032
> URL: https://issues.apache.org/jira/browse/LANG-1032
> Project: Commons Lang
> Issue Type: New Feature
> Components: lang.*
> Affects Versions: 3.3.2
> Reporter: Ondra Žižka
> Priority: Major
> Fix For: Patch Needed, Discussion
>
>
> For performance reasons, it would be better to have a version of each join
> method which puts the intermediate results into a StringBuilder.
> I didn't look but believe that internally they use it anyway.
> So the method which returns String could be a wrapper for that.
> Thanks for considering.
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