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https://issues.apache.org/jira/browse/HADOOP-19930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran resolved HADOOP-19930.
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Fix Version/s: 3.4.4
3.5.1
3.6.0
Resolution: Fixed
> ObjectWritable to take interface/superclass and check before class load
> -----------------------------------------------------------------------
>
> Key: HADOOP-19930
> URL: https://issues.apache.org/jira/browse/HADOOP-19930
> Project: Hadoop Common
> Issue Type: Improvement
> Components: ipc
> Affects Versions: 3.5.0, 3.4.3, 3.5.1
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
> Labels: pull-request-available
> Fix For: 3.4.4, 3.5.1, 3.6.0
>
>
> ObjectWritable.loadClass is used to load classes from writables, after which
> the loaded class is cast to the target interface and then instantiated.
> Validating that the loaded class is of the required type prior to
> instantiation allows for faster failing, as there's no load.
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