RutledgePaulV

(defn gc-managed-pool
  "Wraps a manually managed pool to create an automatically managed pool
   that returns resources to the pool as the doled out references are 
   garbage collected by the jvm."
  [pool borrow return]
  (letfn [(interfaces [x]
            (->> (ancestors (class x))
                 (filter class?)
                 (filter #(.isInterface %))))
          (create-facade [x]