Not sure if this is an error in the generated documentation or the generated bytecode (but I can hardly believe that protected methods compile down to public ones, so I would guess it's an error with Dokka?)

Please fill issue for it

I will double check the generated bytecode when I have time and will file an issue for that. Still, do you have any idea why the JDK linking for Javadoc doesn't work or how I can work around it? (maybe add https://docs.oracle.com/javase/7/docs/api/ to external documentation links, I don't know if if that would work, I'm just speculating here). Thanks!

Looks like problems with documentation links in javadoc broken somewhere on dokka side, I need more research here, anyway I’ll fix or try to fix it right after https://github.com/Kotlin/dokka/issues/184

Ok, glad to hear the issue will be addressed soon. Thanks a lot!