Failing to make UserAgentUtils work with Clojure

gistfile1.clj

# Project created by running the following command
$ lein new helloworld

# src/helloworld/core.clj
(ns helloworld.core
  (:import [nl.bitwalker.useragentutils.UserAgent])
  (:gen-class :main true))

(defn -main
  [& args]
  (println UserAgent))

# project.clj
(defproject helloworld "0.1.0-SNAPSHOT"
  :main helloworld.core
  :dependencies [[org.clojure/clojure "1.4.0"]
                 [nl.bitwalker/useragentutils "1.6"]])

# nl.bitwalker.useragentutils installed using following command:
$ wget http://java.net/projects/user-agent-utils/downloads/download/UserAgentUtils-1.6.jar
$ mvn install:install-file -Dfile=UserAgentUtils-1.6.jar -DgroupId=nl.bitwalker.useragentutils -DartifactId=UserAgentUtils -Dpackaging=jar -Dversion=1.6 -DgeneratePom=true -DcreateChecksum=true

# Exception stacktrace when trying to compile

 lein2 compile
Compiling helloworld.core
Exception in thread "main" java.lang.RuntimeException: Unable to resolve symbol: UserAgent in this context, compiling:(helloworld/core.clj:7)
	at clojure.lang.Compiler.analyze(Compiler.java:6281)
	at clojure.lang.Compiler.analyze(Compiler.java:6223)
	at clojure.lang.Compiler$InvokeExpr.parse(Compiler.java:3548)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6457)
	at clojure.lang.Compiler.analyze(Compiler.java:6262)
	at clojure.lang.Compiler.analyze(Compiler.java:6223)
	at clojure.lang.Compiler$BodyExpr$Parser.parse(Compiler.java:5618)
	at clojure.lang.Compiler$FnMethod.parse(Compiler.java:5054)
	at clojure.lang.Compiler$FnExpr.parse(Compiler.java:3674)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6453)
	at clojure.lang.Compiler.analyze(Compiler.java:6262)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6443)
	at clojure.lang.Compiler.analyze(Compiler.java:6262)
	at clojure.lang.Compiler.access$100(Compiler.java:37)
	at clojure.lang.Compiler$DefExpr$Parser.parse(Compiler.java:518)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6455)
	at clojure.lang.Compiler.analyze(Compiler.java:6262)
	at clojure.lang.Compiler.analyze(Compiler.java:6223)
	at clojure.lang.Compiler.compile1(Compiler.java:7030)
	at clojure.lang.Compiler.compile(Compiler.java:7097)
	at clojure.lang.RT.compile(RT.java:387)
	at clojure.lang.RT.load(RT.java:427)
	at clojure.lang.RT.load(RT.java:400)
	at clojure.core$load$fn__4890.invoke(core.clj:5415)
	at clojure.core$load.doInvoke(core.clj:5414)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at clojure.core$load_one.invoke(core.clj:5227)
	at clojure.core$compile$fn__4895.invoke(core.clj:5426)
	at clojure.core$compile.invoke(core.clj:5425)
	at user$eval103.invoke(NO_SOURCE_FILE:1)
	at clojure.lang.Compiler.eval(Compiler.java:6511)
	at clojure.lang.Compiler.eval(Compiler.java:6501)
	at clojure.lang.Compiler.eval(Compiler.java:6477)
	at clojure.core$eval.invoke(core.clj:2797)
	at clojure.main$eval_opt.invoke(main.clj:297)
	at clojure.main$initialize.invoke(main.clj:316)
	at clojure.main$null_opt.invoke(main.clj:349)
	at clojure.main$main.doInvoke(main.clj:427)
	at clojure.lang.RestFn.invoke(RestFn.java:421)
	at clojure.lang.Var.invoke(Var.java:419)
	at clojure.lang.AFn.applyToHelper(AFn.java:163)
	at clojure.lang.Var.applyTo(Var.java:532)
	at clojure.main.main(main.java:37)
Caused by: java.lang.RuntimeException: Unable to resolve symbol: UserAgent in this context
	at clojure.lang.Util.runtimeException(Util.java:170)
	at clojure.lang.Compiler.resolveIn(Compiler.java:6766)
	at clojure.lang.Compiler.resolve(Compiler.java:6710)
	at clojure.lang.Compiler.analyzeSymbol(Compiler.java:6671)
	at clojure.lang.Compiler.analyze(Compiler.java:6244)
	... 42 more
Compilation failed: Subprocess failed

Just for consistency's sake (whoever stumbles upon this gist), imma mention that you fixed it in this ML:
https://groups.google.com/d/msg/clojure/JCwpbqbrHUE/EB_PoTuQ0NEJ