On the server, java.util.Date is unaffected as Jens pointed out - it is not backed by a 32-bit int, but a 64-bit int. Your swing and web implementations will be able to use java.util.Date beyond 2038:
Here's plain Java, using jshell to demonstrate that this will work with much larger dates than a decade away: jshell> new java.util.Date(Long.MAX_VALUE) $1 ==> Sun Aug 17 01:12:55 CST 292278994 As he also pointed out, you _can_ use java.time using the linked package, but the java.time APIs are not very conducive to emulation in the browser, so any emulation will always be a subset of the full possible functionality that a regular JVM has. On Wednesday, October 9, 2024 at 10:08:42 AM UTC-5 [email protected] wrote: > 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 <[email protected]>: > >> 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. >> >> -- >> > You received this message because you are subscribed to the Google Groups >> "GWT Users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/google-web-toolkit/c195f5e8-1927-43a7-8796-634c56e20d84n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/google-web-toolkit/c195f5e8-1927-43a7-8796-634c56e20d84n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/google-web-toolkit/f0487d21-3a72-46ed-81a4-a9e3b02e05fcn%40googlegroups.com.
