David C Navas created SPARK-27731:
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Summary: Cleanup some odd-looking typing choices and exception
handling
Key: SPARK-27731
URL: https://issues.apache.org/jira/browse/SPARK-27731
Project: Spark
Issue Type: Sub-task
Components: Spark Core
Affects Versions: 2.3.3
Reporter: David C Navas
Previous checkins cleaned up some of the odd exception propagation choices
(Throwables.propagate is deprecated), there's a little more work on that here.
Additionally, the InMemory's InstanceList wasn't previously generically typed,
which made some of the code excessively cautious. I added the generic typing
and removed the sprinkling of Precondition checks which seems to have been
designed to work around not having proper compile-time type checking. Also, it
turned out to be unnecessary to track the class in the KVStoreView, which
allows for the easy creation of an EMPTY_VIEW singleton.
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