Is 32-bit Arm support being actively maintained in JDK21 and head?

[Stewart Addison]

Hi everyone,

This is a bit of a follow up to the discussion on Windows 32-bit builds in
the jdk-dev thread from yesterday, but is anyone currently actively
maintaining the 32-bit Arm code for the JDK21 and HEAD streams? Noting that
unlike Win32, there are GitHub PR tests for Arm32 so failures are more
likely to get noticed than for Win32.

Eclipse Temurin has not yet released a version of JDK21 but we have had a
user ask about whether we will do so (issue link
<https://github.com/adoptium/adoptium-support/issues/962>), since we have
done so for previous LTS releases. As input to making a decision on this it
would be helpful to understand if the platform has a strong support story
upstream for the latest release streams which would be important to us to
be able to maintain such a release, or if it is likely to go the same way
as Win32 i.e. that it will suffer failures over time which would make it
harder to support it along with the other platform ports.

The wiki at https://wiki.openjdk.org/display/hotspot/ports lists Boris
Ulasevich and Sergey Nazarkin as maintainers, so I've explicitly copied
both on this email but I'm looking to see if there is still active
maintenance going on with the Arm32 port from any members of the openjdk
community for the newer codebases, or whether there is any possibility of
it being deprecated at some point like Win32.

Thanks in advance,

Stewart...
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