Clojure static inner class instantiation issues (interop issues)

Question

I am trying to use a static inner class from a Java library into Clojure.

The inner class is InMemoryLookupCache.Builder.

I am always getting a ClassNotFoundException. Like with:

(import 'org.deeplearning4j.models.word2vec.wordstore.inmemory.InMemoryLookupCache$Builder)

I am trying to write that Java code in Clojure without any success:

new InMemoryLookupCache.Builder().lr(2e-5).vectorLength(100).build();

However I am not able to instantiate that inner class even if I think I am right using the $ syntax to access it.

If you want to try, use the following projects:

[org.deeplearning4j/deeplearning4j-core "0.0.3.3"]
[org.deeplearning4j/deeplearning4j-nlp "0.0.3.3"]

Answer 1

If this is the class you are using, I don't see a Builder inner class?

EDIT: This is working for me. Changed the version of the library to the same one the example is using.

in project.clj:

(defproject clojure-scratch "0.1.0-SNAPSHOT"
  :description "FIXME: write description"
  :url "http://example.com/FIXME"
  :license {:name "Eclipse Public License"
            :url "http://www.eclipse.org/legal/epl-v10.html"}
  :dependencies [[org.clojure/clojure "1.6.0"]
                 [org.deeplearning4j/deeplearning4j-core "0.0.3.2.7"]
                 [org.deeplearning4j/deeplearning4j-nlp "0.0.3.2.7"]])

in core.clj:

(ns clojure-scratch.core
  (:import (org.deeplearning4j.models.word2vec.wordstore.inmemory
             InMemoryLookupCache
             InMemoryLookupCache$Builder)))

(println (new InMemoryLookupCache$Builder))