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https://issues.apache.org/jira/browse/HADOOP-19930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18100197#comment-18100197
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ASF GitHub Bot commented on HADOOP-19930:
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steveloughran opened a new pull request, #8640:
URL: https://github.com/apache/hadoop/pull/8640
Validate class instantiation through ObjectWritable and elsewhere to make
sure
the class is of the requested type before the class is instantiated
New reflection validation in ReflectionUtils
-Pulls up class type checking to before actual class load; fails fast -Add
check of array length.
-Limit recursive depth to 100.
This is #8569 on a new branch to get yetus to pick it up
Contains content generated by Claude.ai
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> 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
>
> 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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