Can't call public method of non-public class: public (Google gcloud library)

Question

I am attempting to use the gcloud library.

(ns firengine.state
  (:import
   [com.google.cloud AuthCredentials]
   [com.google.cloud.datastore DatastoreOpti         


        

Answer 1

so, i am a complete Clojure noob and ran into a similar error using Caffeine Cache: "IllegalArgumentException Can't call public method of non-public class: public default void com.github.benmanes.caffeine.cache.LocalManualCache.put(java.lang.Object,java.lang.Object) clojure.lang.Reflector.invokeMatchingMethod (Reflector.java:88)"

my original function signature was this:

(defn get
  [cache key]
  (.getIfPresent cache key)
  )

and i think the issue is that Clojure could not figure out where to apply Cache's .getIfPresent function. Adding the type fixed it:

(defn get
  [^Cache cache key]
  (.getIfPresent cache key)
  )

Even though it's not a direct answer and your question went over my head, I hope this helps.