Smallrye Health extension doesn't work in native

[xstefank]

Generating project without REST endpoint:

mvn io.quarkus:quarkus-maven-plugin:0.11.0:create \
    -DprojectGroupId=io.xstefank \
    -DprojectArtifactId=health-test

and adding smallrye-health:

mvn quarkus:add-extension -Dextensions="smallrye-health"

Compiling to native and then accessing /health results in:

java.lang.InstantiationException: Type org.glassfish.json.JsonProviderImpl can not be instantiated reflectively as it does not have a no-parameter constructor or the no-parameter constructor has not been added explicitly to the native image.

full stacktrace: https://pastebin.com/eupq0e5n

This class is added for reflective access only in ResteasyJsonbProcessor however smallrye-health uses JSON-P in SmallRyeHealthReporter.

I believe that smallrye-health extension should also register "org.glassfish.json.JsonProviderImp" for reflective access.

[gsmet]

OK, this goes in parallel to #1480 .

I think we will need some low level JSON-B/JSON-P library setting everything up and added as a dependency for everyone that needs it.

[xstefank]

@gsmet ok, thanks, I will leave it then to you

[gsmet]

It should be fixed in tomorrow's release.