<i18n dev> RFR: 8276220: Reduce excessive allocations in DateTimeFormatter [v6]

[Claes Redestad]

On Wed, 3 Nov 2021 14:24:28 GMT, Stephen Colebourne <scolebourne at openjdk.org> wrote:

>> Claes Redestad has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Add test verifying OOB values throw exception
>
> Thanks for adding the new tests, and finding that fraction formatting is more constrained than I thought it was.
> 
> I think there is a case for a spec update in `DateTimeFormatterBuilder` to clarify the constraint on the input value (at this point, that seems better than changing the behaviour of fraction formatting). As things stand, the exception that is thrown is not described by the spec. (The spec change could be part of this PR or a separate one).

Thanks for reviewing, @jodastephen! 

I think a spec update sounds good, but I think that should be done in as a follow-up. If you would be willing to provide the wording for such a spec update I can take care of creating a CSR.

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PR: https://git.openjdk.java.net/jdk/pull/6188