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https://issues.apache.org/jira/browse/CASSANDRA-14367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16428750#comment-16428750
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Aleksey Yeschenko commented on CASSANDRA-14367:
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And sometimes we mutate those arguments, which you cannot do with the immutable
{{SingletonList}} for example. Not saying it’s the case with any of this
substitutions - just please be very careful with these changes.
> prefer Collections.singletonList to Arrays.asList(one_element)
> --------------------------------------------------------------
>
> Key: CASSANDRA-14367
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14367
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Dave Brosius
> Assignee: Dave Brosius
> Priority: Trivial
> Fix For: 4.x
>
> Attachments: 14367.txt
>
>
> small improvement, but Arrays.asList first creates an array, then wraps it
> with a collections instance, whereas Collections.singletonList just creates
> one small (one field) bean instance.
> so a small cut down on garbage generated.
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