Is it possible to use Jettison with Spring / Spring-Boot instead of default JSON Provider Jackson? I have one such requirement to match Json output with an very old project which used Jettison.
If yes, can i get some pointers/hints please?
It's possible but you're going to be doing a lot of hacking and writing boiler-plate configuration code as Jackson is embedded pretty deep inside Spring.
It might be easier for you to leverage Jackson's functionality to serialize/deserialize your data in the format you need (instead of the format Jackson silently provides)?