When running Flink on JDK11, there are various warnings like this one:
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.apache.flink.api.java.ClosureCleaner (file:/private/tmp/flink/flink-dist/target/flink-1.11-SNAPSHOT-bin/flink-1.11-SNAPSHOT/lib/flink-dist_2.11-1.11-SNAPSHOT.jar) to field java.lang.String.value
WARNING: Please consider reporting this to the maintainers of org.apache.flink.api.java.ClosureCleaner
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
This is an umbrella issue to collect all cases of such warnings. We will create separate tickets for each affected class / module / component.