Allow use of `@JsonFormat(with=JsonFormat.Feature.ACCEPT_CASE_INSENSITIVE_PROPERTIES)` on Class

(note: follow-up from #1851)

Currently @JsonFormat features, and specifically Feature.ACCEPT_CASE_INSENSITIVE_PROPERTIES, does not apply if annotated via class. Like:

    @JsonFormat(with={ JsonFormat.Feature.ACCEPT_CASE_INSENSITIVE_PROPERTIES })
    static class Role {
        public String ID;
        public String Name;
    }

whereas similar setting with mapper.configOverrides(class) does work.

It would probably make sense to allow annotation on class too, having lower precedence than config override, but higher than general one.

[JavierSegoviaCordoba]

It isn’t working for me (class or properties). If I create a custom mapper, it works.

How can I use this annotation on a property? I am using the last version of Jackson @cowtowncoder

[cowtowncoder]

Ah, yes, @JsonAlias is good to mention here.

And as a sidenote: the reason for no support for single-property case-insensitivity is the technical implementation: lookup for all properties is via data structure that does either strict, or case-insensitive. So there is no way to distinguish this on per-property basis, as of yet.