Steve Loughran created HADOOP-19930:
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Summary: 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: 3.4.3, 3.5.0, 3.5.1
Reporter: Steve Loughran
Assignee: Steve Loughran
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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