Re: java.time support

So web is not going to be worried, but... :) 

We have user interfaces for both thick (swing) and web using dates and now we need to use java.util.Date as this is supported by GWT.

Is there a way to use anything else than java.util.Date that is supported by GWT? 

Op wo 9 okt 2024 om 16:51 schreef Jens <jens.nehlmeier@gmail.com>:

Here is a link about the year 2038 problem: https://en.wikipedia.org/wiki/Year_2038_problem

Ah ok, thats where you are coming from.

JavaScript/ECMAScript defines that JavaScript Date supports exactly 100000000 days before and after unix epoch. This gives us a maximum year of 275760 that JavaScript Date can currently represent.

Java itself uses a long to represent millis since epoch in java.util.Date. Because long is 64 bit the maximum year that java.util.Date can represent is 292278994.

JavaScript: 275760

Java: 292278994

Since GWT emulates java.util.Date using native JavaScript Date the max year in GWT code is the one of JavaScript.

In any case year 2038 shouldn't be a problem, thats why I asked. You can easily verify it in browser console using

var millis = Date.parse("2040-06-01");

var date = new Date(millis);

console.log(date);

-- J. 

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