Add support for strict property ordering

[siy]

The purpose of this feature is to enable strict field ordering (without prioritization of properties referenced by @JsonCreator).
This feature is extremely useful in cases when serialized output need to be, for example, predictably and interoperably hashed.

[cowtowncoder]

First of all, thank you for submitting this PR: it seems useful and necessary. I'll have to look a bit deeper to make sure I understand consequences. I may also have to consider one tactical challenge wrt MapperFeature additions (we are getting close to a limit).

One thing tho: I think you may want to rebase this against 2.12, as 3.0 is still not close to getting released, and "master" branch is for 3.0. I am planning to get 2.12.0-rc1 out soon so this could conceivably make it in.

[siy]

Closing this PR in favor of #2879

[siy]

OK, switching to 2.12 makes sense.

[siy]

First of all, thank you for submitting this PR: it seems useful and necessary. I'll have to look a bit deeper to make sure I understand consequences. I may also have to consider one tactical challenge wrt MapperFeature additions (we are getting close to a limit).

One thing tho: I think you may want to rebase this against 2.12, as 3.0 is still not close to getting released, and "master" branch is for 3.0. I am planning to get 2.12.0-rc1 out soon so this could conceivably make it in.

I've submitted reworked version as #2879. Please, review it and let me know if anything need to be changed. This change is really important for our current project and I'd like to have it included into next release.

[cowtowncoder]

Thanks -- I'll add notes on the new PR.