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https://issues.apache.org/jira/browse/KYLIN-3144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Billy Liu resolved KYLIN-3144.
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Resolution: Fixed
Fix Version/s: v2.3.0
Commit:
https://github.com/apache/kylin/commit/87a0058d9188d4e1140470e0df260548ade097a1
> Adopt Collections.emptyList() for empty list values
> ---------------------------------------------------
>
> Key: KYLIN-3144
> URL: https://issues.apache.org/jira/browse/KYLIN-3144
> Project: Kylin
> Issue Type: Improvement
> Reporter: Ted Yu
> Assignee: jiatao.tao
> Priority: Minor
> Fix For: v2.3.0
>
>
> Use Collection.emptyList() for returning an empty list instead of returning
> new ArrayList<>().
> The default constructor creates a buffer of size 10 for ArrayList .
> Therefore, returning this static value saves some memory and lessens GC
> pressure.
> One candidate for replacement is in HybridService#listHybrids()
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