[jira] [Created] (FLINK-15094) Warning about using private constructor of java.nio.DirectByteBuffer in Java 11

[Shang Yuanchun (Jira)]

Andrey Zagrebin created FLINK-15094:
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             Summary: Warning about using private constructor of java.nio.DirectByteBuffer in Java 11
                 Key: FLINK-15094
                 URL: https://issues.apache.org/jira/browse/FLINK-15094
             Project: Flink
          Issue Type: Improvement
          Components: Runtime / Task
            Reporter: Andrey Zagrebin


The unsafe off-heap in [FLINK-13985|https://jira.apache.org/jira/browse/FLINK-13985] was implemented by hacking into a private constructor of java.nio.DirectByteBuffer. This causes undesirable warnings in Java 11:


{code:java}
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.apache.flink.core.memory.MemoryUtils (file:/C:/Development/repos/flink/flink-core/target/classes/) to constructor java.nio.DirectByteBuffer(long,int)
WARNING: Please consider reporting this to the maintainers of org.apache.flink.core.memory.MemoryUtils
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{code}



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