[ARROW-12747] [Java] Arrow's use of Netty library causes UnsupportedOperationException with JDK16

• Type: Sub-task
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.15.1, 5.0.0
• Fix Version/s: 8.0.0
• Component/s: Java
• External issue URL: https://github.com/apache/arrow/issues/28489
• Assignee: David Dali Susanibar Arce
• Reporter: Megan Knister
• Created: 11/May/21 23:27
• Updated: 11/Jan/23 08:28
• Resolved: 10/May/22 15:01

Description

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 setting "-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!

Issue Links

• is required by: ARROW-15755 [Java] Support Java 17
• requires: ARROW-16327 [Java][CI]: Add support for Java 17 CI process