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https://issues.apache.org/jira/browse/SPARK-27981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16951625#comment-16951625
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Dongjoon Hyun commented on SPARK-27981:
---------------------------------------

For now, `java.nio.DirectByteBuffer` is an intentional one, [~kshukla].

[~srowen], do we have a JIRA to track `java.nio.DirectByteBuffer`?

> Remove `Illegal reflective access` warning for `java.nio.Bits.unaligned()`
> --------------------------------------------------------------------------
>
>                 Key: SPARK-27981
>                 URL: https://issues.apache.org/jira/browse/SPARK-27981
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Spark Core
>    Affects Versions: 3.0.0
>            Reporter: Dongjoon Hyun
>            Assignee: Dongjoon Hyun
>            Priority: Major
>             Fix For: 3.0.0
>
>
> This PR aims to remove the following warnings for `java.nio.Bits.unaligned` 
> at JDK9/10/11/12. Please note that there are more warnings which is beyond of 
> this PR's scope.
> {code}
> bin/spark-shell --driver-java-options=--illegal-access=warn
> WARNING: Illegal reflective access by org.apache.spark.unsafe.Platform 
> (file:/Users/dhyun/APACHE/spark-release/spark-3.0/assembly/target/scala-2.12/jars/spark-unsafe_2.12-3.0.0-SNAPSHOT.jar)
>  to method java.nio.Bits.unaligned()
> ...
> {code}



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