Value class for ZoneOffset?

[Brian Goetz]

Dan can fill in the details on this specific case, but by way of 
background, for JEP 401 we're not trying to migrate _every_ candidate 
value class in the JDK -- just a good set of the most common ones.  So 
any list we came up with is surely going to be just an approximation, 
not the last word.

On 9/30/2025 5:04 PM, Stephen Colebourne wrote:
> I notice from the updated JEPhttps://openjdk.org/jeps/401 that
> ZoneOffset is not intended to become a value class. I assume this is
> because of the id and rules cache variables?
>
> It seems to me that ZoneOffset is very much applicable to be a value,
> as it's state is fundamentally an int. Performance tests would be
> needed, but it might be possible to create the id and rules on the fly
> rather than caching them.
>
> thanks
> Stephen
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