aljoscha commented on issue #8280: [FLINK-12297]Harden ClosureCleaner to handle the wrapped function URL: https://github.com/apache/flink/pull/8280#issuecomment-498187123 I think overall the changes are good! One thing I thought about is what happens when objects that need to be cleaned are nested, i.e. if you have a structure like `OuterStaticClass.InnerStaticClass.InnerAnonymousOrLocalClass`. I think the current approach doesn't catch this, and checking always at the top level, as @StephanEwen suggested would also not catch this problem. Any thoughts?
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