> I think the class loader will fail to load `ObjectMapper` breaking things. I don't think so... Maybe it is worth to have a try
Tatu Saloranta <[email protected]> 于2022年2月12日周六 06:52写道： > On Fri, Feb 11, 2022 at 10:45 AM [email protected] > <[email protected]> wrote: > > > > A missing class for a method parameter shouldn't affect you, you could > simply not use that method. If it was a field it'd be a different story. > > > > - Jonas > > I don't think that is correct in this case? If a method signature for > `ObjectMapper.readValue(Path src, Class<?> target)` is encountered, > I think the class loader will fail to load `ObjectMapper` breaking things. > Or is this not the case? > > I do know that if `Path` was known but referred to something else > itself that wasn't, that'd be fine. > But in this particular case I would expect actual trouble even if that > specific `readValue()` method was not called. > > -+ Tatu +- > > > > > Michael Rogers schrieb am Freitag, 11. Februar 2022 um 13:48:44 UTC+1: > >> > >> On 01/02/2022 18:28, Tatu Saloranta wrote: > >> > On Mon, Jan 24, 2022 at 8:13 PM Xeno Amess <[email protected] > >> > <mailto:[email protected]>> wrote: > >> > > >> > Hi. > >> > Is there any reason not support Path in JsonFactory and ObjectMapper? > >> > If not, then I would provide a pr when I have time. > >> > > >> > > >> > The main reason is that `Path` was added in JDK 7 and for the longest > >> > time Jackson only required JDK 6. > >> > > >> > With 2.13 jackson-databind requires JDK 8, so adding support in > >> > `ObjectMapper` (and `ObjectReader`) would be fine. > >> > > >> > `jackson-core` (JsonFactory / TokenStreamFactory) however still only > >> > requires JDK 6 for 2.13, and while > >> > we may consider upgrading the baseline within 2.x no decision has been > >> > made (or proposal) for 2.14. > >> > So addition in JsonFactory would not yet be possible. > >> > > >> > So, a PR against `2.14` (this is API add so can not go in as part of > >> > 2.13.x patches) for `jackson-databind` would be welcome. > >> > > >> > Anyone else have comments, suggestions, wrt this question? > >> > >> Older Android devices only have support for the Java 6 standard library. > >> Some parts of the Java 8 standard library are supported via library > >> desugaring, but unfortunately Path doesn't seem to be among them: > >> > >> https://developer.android.com/studio/write/java8-support-table > >> > >> So adding Path to jackson-databind would make it incompatible with about > >> 3.4% of Android devices (according to apilevels.com). As an app > >> developer currently using 2.13, this would stop me from upgrading to > >> 2.14 for another couple of years, while those old devices gradually die > out. > >> > >> Cheers, > >> Michael > >> > >> > -+ Tatu +- > >> > > >> > -- > >> > You received this message because you are subscribed to the Google > >> > Groups "jackson-user" group. > >> > To unsubscribe from this group and stop receiving emails from it, > >> > send an email to [email protected] > >> > <mailto:[email protected]>. > >> > To view this discussion on the web visit > >> > > https://groups.google.com/d/msgid/jackson-user/96b2fcd7-3f1c-48fa-aadd-15ff6f3b85abn%40googlegroups.com > >> > < > https://groups.google.com/d/msgid/jackson-user/96b2fcd7-3f1c-48fa-aadd-15ff6f3b85abn%40googlegroups.com?utm_medium=email&utm_source=footer > >. > >> > > >> > -- > >> > You received this message because you are subscribed to the Google > >> > Groups "jackson-user" group. > >> > To unsubscribe from this group and stop receiving emails from it, send > >> > an email to [email protected] > >> > <mailto:[email protected]>. > >> > To view this discussion on the web visit > >> > > https://groups.google.com/d/msgid/jackson-user/CAGrxA24hYAiFW1xymfxBcNRqwYTkEakCm8ikO7bwbeuLdXcwsw%40mail.gmail.com > >> > < > https://groups.google.com/d/msgid/jackson-user/CAGrxA24hYAiFW1xymfxBcNRqwYTkEakCm8ikO7bwbeuLdXcwsw%40mail.gmail.com?utm_medium=email&utm_source=footer > >. > > > > -- > > You received this message because you are subscribed to the Google > Groups "jackson-user" 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/jackson-user/2109c03c-15b2-40b7-8b35-afa80b2f6505n%40googlegroups.com > . > > -- > You received this message because you are subscribed to the Google Groups > "jackson-user" 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/jackson-user/CAL4a10hZ3n_Kuh8Ns8nQ-S0Yk26%2BE3nbFQa1NTJouUmOd%2Bu2TQ%40mail.gmail.com > . > -- You received this message because you are subscribed to the Google Groups "jackson-user" 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/jackson-user/CAFF4x5KKU0OVfMHPt63qRB58Lgm18-c4x4ZF11R%2BLr7qYfDMYQ%40mail.gmail.com.
