Currently the new json-b provider coming from
RESTEASY-1665 is not enabled by default: on server side its module is not added as a dependency by default to the user deployments, on client side the maven dependency has to be explicitly declared and currently we do that in the testsuite module but then the artifact is excluded at surefire plugin level for almost all tests (https://github.com/resteasy/Resteasy/pull/1263#issuecomment-326193151).
We should evaluate if it makes sense to enable the new provider by default. In doing that, we need to consider:
- testsuite regressions, possibly revealing backward compatibility issues; we could possibly evaluate adding a configuration option for controlling the json-b enablement by default
- EE8 / JSR-370 TCK requirements