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https://issues.apache.org/jira/browse/SOLR-14610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17154205#comment-17154205
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David Smiley commented on SOLR-14610:
-------------------------------------

Since ReflectMapWriter does all logic on demand, I wonder if there is any perf 
benefit from VarHandle stuff.  In SOLR-14404 the situation was different 
because the VarHandle was looked up only once and re-used, saved in the 
AnnotatedApi.Cmd.method.

CC [~uschindler]

> ReflectMapWriter to use VarHandle instead of old legacy reflection
> ------------------------------------------------------------------
>
>                 Key: SOLR-14610
>                 URL: https://issues.apache.org/jira/browse/SOLR-14610
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Noble Paul
>            Priority: Major
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> The same reason why we changed to MethodHandles in SOLR-14404



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