Github user pwendell commented on the pull request:
https://github.com/apache/spark/pull/2685#issuecomment-61051413
The problem here is that Hive 0.13 upgrades the Kryo version from 2.21 to
2.22. Spark previously depends on Kryo 2.22 via chill. In Kryo 2.22 they made a
build change where they started inlining the objenesis dependency via shading.
This patch somehow causes Spark to compile against Kryo 2.21 and run against
Kryo 2.22, which is the root cause of the errors.
My suggestion was to just exclude Kryo from Hive, hoping that it would
result in us just keeping Kryo 2.21 and that Hive could deal with it. We might
need to exclude it in other places than hive-exec. That could be the issue.
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