JDK-17 support?

[Chris Nuernberger]

Are there plans to support JDK-17?  They have removed the unsafe class or
at least most of its methods so for example I believe the MemoryUtil
<https://github.com/apache/arrow/blob/8e43f23dcc6a9e630516228f110c48b64d13cec6/java/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java>
class
cannot work the same way - as opposed to going through unsafe to convert
between integers and nio buffers you have to go through
MemoryAddress,Segment and friends.