On Wed, 16 Oct 2024 23:01:31 GMT, Justin Lu <j...@openjdk.org> wrote:

> BTW, can we go even further and remove "EST", "HST" and "MST" from 
> `SHORT_IDS`? IIUC the basis for keeping those 3 specifically as part of 
> `SHORT_IDS` was the conflicting 1.1 behavior. Now that the old mapping is 
> removed, those 3 will always map to the TZDB data, which has them as valid 
> links in _backwards_ instead of the previous fixed offset zones.

Data conflict with TZDB is not the reason to keep them in `SHORT_IDS`, but they 
are defined as time zone ids in JDK1.1, as well as others in `SHORT_IDS` is the 
reason. They are all deprecated, so ideally we remove them altogether, but I 
expect that would break apps.

That said, it might be useful we log warnings if apps use them, then we may be 
able to indeed remove them in future releases.

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PR Comment: https://git.openjdk.org/jdk/pull/21545#issuecomment-2418124218

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