You can verify this yourself in a REPL:

user=> AutoCloseable
Syntax error compiling at (REPL:0:0).

I have the general impression that all things under java.lang are directly accessible. Why here isn’t the caes?

For example, Object and Thread from java.lang are directly accessible.

This is not the case for everything

yes. might be class only:

https://clojure.org/reference/java_interop

Don't complain to me, this is just not the case for all classes as you can verify in a REPL. This is not a kondo problem. Take it up with the people who wrote those docs.

user=> java.lang.ProcessHandle
java.lang.ProcessHandle
user=> ProcessHandle
Syntax error compiling at (REPL:0:0).
Unable to resolve symbol: ProcessHandle in this context

Kondo just tells you what is the case, it's not going to change your Clojure implementation for you :)

No complain. It just breaks my previous impression with what’s automatically accessible.

it's a fixed list which isn't updated

That auto import list hasn't been updated in a while - we have a ticket for it.

They've added so much stuff, I'm not sure that we will want to add everything when we do update it

I'd be fine with not adding anything to that and being explicit about imports

Yeah, it needs some analysis, just haven't gotten around to doing it

I wonder if there are potential breakages if someone has already imported foo.bar.ProcessHandle and then adding java.lang.ProcessHandle as an auto-import

Yeah, stuff like that is something I worry about

Same kind of problem as adding new stuff to core with auto refers