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

["Chesnay Schepler (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-15094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chesnay Schepler closed FLINK-15094.
------------------------------------
    Resolution: Won't Fix

Last time I looked into this I could not find a way to suppress these warnings.

> 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
>            Priority: Major
>
> 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}
> We should look into this, confirm that it is harmless and try to silence it to avoid confusion for users.



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