[HV-2161] Rework documentation example for Jackson 3

[jobayle]

This use case:
https://docs.hibernate.org/stable/validator/reference/en-US/html_single/#section-property-node-name-provider

Uses the interpolator, which is an internal component of Jackson that was exposed for testing purposes.

In Jackson 3, the interpolator is no longer publicly exposed, a Visitor must be used instead.

See discussion here:
FasterXML/jackson#330

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[marko-bekhta]

Hi @jobayle 👋🏻

thanks for the PR! It's been a while since that example was introduced 🙂, I'll have a closer look.
Do you happen to know if the same visitor approach would work in 2.8 ? I'm thinking since Validator is not really tied to Jackson versions, it might as well be that people are using it with 2.x versions of Jackson so would be nice if we can keep the example working with different versions.

[jobayle]

Hi Marko,

The visitor already exists in Jackson 2, and works the same, so code examples should work with both versions. (except there is an extra Exception in Jackson 2, I've added the try/catch so it remains compatible)

Unfortunately starting with Jackson3 they've changed packages:
com.fasterxml.jackson ➡️ tools.jackson

So as long as code examples don't mention packages/imports, we're good (Example 12.31 is the only offending example).

I've updated the dependency to Jackson3 to be future proof.

I've added a commit that reverts to Jackson2 but with the new code to prove it works for both versions!

[marko-bekhta]

hey 🙂, thanks!
I've created a Jira ticket for your work: https://hibernate.atlassian.net/browse/HV-2161

[marko-bekhta]

Thanks! 🙂
I went through the changes and added a few suggestions inline.

btw the build failed with formatting checks, you might want to run mvn spotless:apply and apply the changes to the files you've updated.