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Posted to jira@arrow.apache.org by "Megan Knister (Jira)" <ji...@apache.org> on 2021/09/21 18:03:00 UTC

[jira] [Updated] (ARROW-12747) Arrow's use of Netty library causes UnsupportedOperationException with JDK16

     [ https://issues.apache.org/jira/browse/ARROW-12747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Megan Knister updated ARROW-12747:
----------------------------------
    Priority: Blocker  (was: Major)

> 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: Bug
>          Components: Java
>    Affects Versions: 0.15.1, 5.0.0
>            Reporter: Megan Knister
>            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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