Design: changing MessageFormat.format args from Map<String,Object> to Map<String,?>

[Mihai Niță Ⓤ]

Dear icu-d...@unicode.org,

The ticket is ICU-23339 and there was already some discussion on it.

But I have also created and shared a design document, summarizing the options and the proposal, with pros and cons:

https://docs.google.com/document/d/1ABmlrDvu5CrimIR39kk1pZmMDnZ9fmWYFfMroXglouw/

Please review when you have some time, if interested.

Thank you very much,

Mihai

[Markus Scherer]

lgtm tnx

markus

[Alan Liu]

Nice improvement.

On Wed, May 13, 2026 at 5:56 PM Markus Scherer <marku...@gmail.com> wrote:

lgtm tnx

markus

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[Vlad Ciorica]

Read the doc, LGTM. I also mocked the changes in the Android codebase and managed to get a green build, so nothing seems to be breaking on Android at least. Thanks @Mihai Niță Ⓤ for the improvement!

To view this discussion visit https://groups.google.com/a/unicode.org/d/msgid/icu-design/CAH3KLqf9DmhiKPBNaa4WxfnH%2Bom0sihkRch7bfY5xuDqZ3c6hA%40mail.gmail.com.

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[Markus Scherer]

Thanks Vlad!

Approved in the TC meeting today: Option C: Directly modify the existing methods

markus