RuntimeHintsRegistrar types should be created dynamically about spring-boot

[wilkinsona]

Unfortunately, longer build times are the nature of the beast with GraalVM when creating a native image. There are plans to allow the Graal JVM to be run in a mode that will report missing runtime hints without the overhead of building a native image. This'll be a significant improvement but it's one that's out of our control.

In the meantime, the need for a runtime hints registrar should be pretty rare. If you need hints to use Spring Cloud OpenFeign, please open an issue over there as I believe it should work without them.

Beyond this, without more specifics, there's not much that we can do here. It may be that there are other bugs in Spring projects, it may be that there is missing reachability metadata, or it may be that your application itself is performing reflection and you'll have to tell Graal about it. Can you provide more details about the failures that you've encountered?