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https://issues.apache.org/jira/browse/SPARK-44668?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jia Fan resolved SPARK-44668.
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Resolution: Invalid
> ObjectMapper are threadsafe, we can reuse it in Object
> ------------------------------------------------------
>
> Key: SPARK-44668
> URL: https://issues.apache.org/jira/browse/SPARK-44668
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 3.4.1
> Reporter: Jia Fan
> Priority: Major
>
> ObjectMapper are threadsafe, we can reuse it in Object. But we create it in
> trait, that's mean each object will create an ObjectMapper.
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