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Posted to issues@flink.apache.org by "Andrey Zagrebin (Jira)" <ji...@apache.org> on 2020/02/20 14:13:00 UTC
[jira] [Issue Comment Deleted] (FLINK-15094) Warning about using
private constructor of java.nio.DirectByteBuffer in Java 11
[ https://issues.apache.org/jira/browse/FLINK-15094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrey Zagrebin updated FLINK-15094:
------------------------------------
Comment: was deleted
(was: Use Unsafe to instantiate and construct DirectByteBuffer)
> 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
> Assignee: Andrey Zagrebin
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> 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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