Gunnar Morling created FLINK-30455:
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Summary: Avoid "cleaning" of java.lang.String in ClosureCleaner
Key: FLINK-30455
URL: https://issues.apache.org/jira/browse/FLINK-30455
Project: Flink
Issue Type: Sub-task
Reporter: Gunnar Morling
When running a simple "hello world" example on JDK 17, I noticed the closure
cleaner tries to reflectively access the {{java.lang.String}} class, which
fails due to the strong encapsulation enabled by default in JDK 17 and beyond.
I don't think the closure cleaner needs to act on {{String}} at all, as it
doesn't contain any inner classes. Unless there are objections, I'll provide a
fix along those lines. With this change in place, I can run that example on JDK
17.
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