<i18n dev> RFR: 8340477: Remove JDK1.1 compatible behavior for "EST", "MST", and "HST" time zones

[Justin Lu]

On Wed, 16 Oct 2024 17:46:20 GMT, Naoto Sato <naoto at openjdk.org> wrote:

> Removing the old compatibility behavior switch for JDK1.1. With the integration of tzdata2024b, definitions of those three (deprecated) IDs changed again, so maintaining the JDK11 compatibility got less useful. Removing the compatibility behavior makes the code and test simpler. A CSR for the behavior change is drafted too.

src/java.base/share/classes/sun/util/calendar/ZoneInfoFile.java line 239:

> 237:                 case "EST" -> aliases.put("EST", "America/Panama");
> 238:                 case "MST" -> aliases.put("MST", "America/Phoenix");
> 239:                 default -> aliases.put(key, ZoneId.SHORT_IDS.get(key));

"EST" and "MST" case are no longer needed? ZoneId should already map them to "America/Panama" and "America/Phoenix". We no longer offer the old mapping, so we can safely follow ZoneId.SHORT_IDS.

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PR Review Comment: https://git.openjdk.org/jdk/pull/21545#discussion_r1803613511