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https://issues.apache.org/jira/browse/SLING-4591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tomek Rękawek reassigned SLING-4591:
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Assignee: Tomek Rękawek
> Performance: Consider using a faster empty map in
> ResourceMetadata#setParameterMap
> ----------------------------------------------------------------------------------
>
> Key: SLING-4591
> URL: https://issues.apache.org/jira/browse/SLING-4591
> Project: Sling
> Issue Type: Improvement
> Components: API
> Affects Versions: API 2.9.0
> Reporter: Joel Richard
> Assignee: Tomek Rękawek
> Priority: Minor
> Labels: perfomance
>
> ResourceMetadata#setParameterMap is called several thousand times per
> request. In my case the passed parameterMap is always empty. Since it has to
> create a new empty LinkedHashMap for each call, 1-2% of the rendering time is
> spent in this method.
> Therefore, I would suggest to either ignore empty maps or use
> Collections.emptyMap() instead. Both solutions should work if the caller does
> not make any undocumented assumptions for getParameterMap().
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