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https://issues.apache.org/jira/browse/CALCITE-2778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16737481#comment-16737481
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Julian Hyde commented on CALCITE-2778:
--------------------------------------
Are you experiencing performance issues due to this class? (It's no longer used
in Calcite, so I would be surprised.)
Your fix removes the "set null" which, as the comment explained, is important
to prevent cycles.
> CompoundClosableAllocation Prefer ArrayList
> -------------------------------------------
>
> Key: CALCITE-2778
> URL: https://issues.apache.org/jira/browse/CALCITE-2778
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: BELUGA BEHR
> Assignee: Julian Hyde
> Priority: Minor
>
> In Java, ArrayList should be the default choice over LinkedList. It
> generally requires less memory and is faster. Update
> {{CompoundClosableAllocation}} to use an Array structure instead of linked
> list and simplify the code.
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