<i18n dev> RFR: 8354344: Test behavior after cut-over for future ISO 4217 currency

[Naoto Sato]

On Wed, 16 Apr 2025 23:06:19 GMT, Justin Lu <jlu at openjdk.org> wrote:

> As the test tracks the ISO 4217 data, manual testing of this change can be done by modifying the cut-over year from 2025 to 2026 for the `CW=ANG;2025-04-01-04-00-00;XCG` entry for both the JDK and test data.

Would it be possible to use `currency.properties` file to provide a test transition, and use this logic test the validity, so that it is not a manual testing? Still it is not 100% same with the data from `currency.data`, but at least provides the transition logic validity, possibly for both simple and special currencies.

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PR Comment: https://git.openjdk.org/jdk/pull/24701#issuecomment-2811294606