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https://issues.apache.org/jira/browse/ARROW-12747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17487237#comment-17487237
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Marius Oancea commented on ARROW-12747:
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I'm using Arrow 0.16.0 with netty 4.1.72.Final and the problem still exists:
Error occured while deserializing arrow data: sun.misc.Unsafe or
java.nio.DirectByteBuffer.<init>(long, int) not available
> Arrow's use of Netty library causes UnsupportedOperationException with JDK16
> ----------------------------------------------------------------------------
>
> Key: ARROW-12747
> URL: https://issues.apache.org/jira/browse/ARROW-12747
> Project: Apache Arrow
> Issue Type: Sub-task
> Components: Java
> Affects Versions: 0.15.1, 5.0.0
> Reporter: Megan Knister
> Assignee: David Dali Susanibar Arce
> Priority: Blocker
>
> The Arrow vector library depends on netty, which throws the exception
> *java.lang.UnsupportedOperationException: sun.misc.Unsafe or
> java.nio.DirectByteBuffer.(long, int) not available.* In the documentation,
> [it's stated that
> s|https://github.com/apache/arrow/blob/master/java/README.md]etting
> "-Dio.netty.tryReflectionSetAccessible=true" fixes the issue. This is true
> with all java versions except with usage of the latest JDK16. The exception
> gets thrown regardless of this system property setting when using JDK16.
>
> Is there a fix for this?
> Thanks!
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