So you would not write hybrid Java and Clojure programs? You would not reuse and extend Java classes? Strange. I thought Rich went to the JVM because the eco system is so rich ;-) and not just because it happens to have a code execution environment and a garbage collection implementation.

When you're writing Clojure code, you generally are supposed to prefer Clojure features and idioms. Functions like proxy and gen-and-save-class exist because sometimes you have to create classes to use other Java APIs.