See babashka/babashka#1409
The issue here is that clojure.lang.Reflector looks at the runtime values of arguments but if such a value is nil it qualifies as basically anything.
It might be better if we starter supporting intercepting method invocations so users can handle these, also for performance.
:classes {java.nio.file.FileSystems {:static-methods {newFileSystem (fn ...)}}}
or so