Error while running /bin/kc.sh build locally for extensions

Hey!

Trying to run README suggestion for extensions but I get an error:

Error: Could not find or load main class io.quarkus.bootstrap.runner.QuarkusEntryPoint
Caused by: java.lang.ClassNotFoundException: io.quarkus.bootstrap.runner.QuarkusEntryPoint

I have java 18 configured for all my different projects.
I’ve added to the /providers dir in quarkus/dist/src/main/content/providers.
In docker i succeed when copying these to the correct dir