azagrebin opened a new pull request #12270: URL: https://github.com/apache/flink/pull/12270
## What is the purpose of the change #11109 did not export `jdk.internal.misc` package used by reflection for GC cleaners of managed memory. Our PR CI does not run Java 11 tests atm. The package has to be exported by a JVM runtime arg: `--add-opens java.base/jdk.internal.misc=ALL-UNNAMED;` If this arg is set for Java 8, it fails the JVM process. Therefore, the fix is complicated as we have to do it also for e.g. Yarn CLI where client and cluster may run different Java versions. This PR suggests a quicker fix. We call directly the private method (has to be made accessible via reflection): - java.lang.ref.Reference.tryHandlePending(false) // for Java 8 - java.lang.ref.Reference.waitForReferenceProcessing() // for Java 11 Unfortunately, this leads to the annoying warning for Java 11 about Illegal reflective access. We can do the quick fix and think how to tackle the warning in a follow-up. ## Verifying this change Existing unit tests but also running them and e2e tests with Java 11. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
