Indeed, Clojure's excellent Java interop gives me easy access to existing Java libraries. And because it runs on the JVM, I've been able to execute Clojure app

Indeed, Clojure's excellent Java interop gives me easy access to existing Java libraries. And because it runs on the JVM, I've been able to execute Clojure apps under z/OS (you know, the day job). I'd call Clojure's use of the JVM a win, not a liability.