eejbyfeldt opened a new pull request #34351:
URL: https://github.com/apache/spark/pull/34351
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### What changes were proposed in this pull request?
Change the anonymous functions in OpenHashMap to member methods. This avoid
having a member which captures the OpenHashMap object in its closure. This
fixes so that OpenHashMap instances can be serialized with Kryo with reference
tracking turned off.
I am not sure why the original implementation had the anonymous function
members in the first place. But if it was implemented that way for performance
reason another possible fix is just to mark the `grow` and `move` members as
transient.
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### Why are the changes needed?
User might want to turn off referenceTracking in kryo since it has
performance benefits, but currently this will unnecessary and unexpectedly
prevent them from using some features of spark that uses OpenHashMap internally.
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### Does this PR introduce _any_ user-facing change?
No.
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### How was this patch tested?
Existing tests and a new test in the `KryoSerializerSuite`.
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