[GitHub] [flink] Aitozi opened a new pull request #8258: [FLINK-12297]Harden ClosureCleaner to handle the wrapped function

[GitBox <gi...@apache.org>]

Aitozi opened a new pull request #8258: [FLINK-12297]Harden ClosureCleaner to handle the wrapped function
URL: https://github.com/apache/flink/pull/8258
 
 
   ## What is the purpose of the change
   
   ClosureCleaner is used to clean the implicit `this$x` point to the outer class in the user defined function to reduce the case of serialization function failed.
   
   But if the function is wrapped by user or the flink framework, it will escape the clean operation. This pr harden the ClosureCleaner to handle this. And I think it is also a feasible approach for [[FLINK-12113]](https://issues.apache.org/jira/browse/FLINK-12113)
   
   ## Brief change log
   
   check the field if need to further clean and apply
   
   ## Verifying this change
   
   1. Add the case in the issue to confirm
   2. Add the wrapFunction test case in ClosuerCleanerTest
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (yes / **no**)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**)
     - The serializers: (yes / **no** / don't know)
     - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know)
     - The S3 file system connector: (yes / **no** / don't know)
   

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