Jar produced with lein uberjar fails on NoClassDefFoundError - clojure

Question

I have a simple web app with this project.clj:
(defproject squirrel-money "1.0.0-SNAPSHOT"
:description "Squirrel Money"
:dependencies [[org.clojure/clojure "1.2.0"]
[org.clojure/clojure-contrib "1.2.0"]
[compojure "0.5.3"]
[ring/ring-jetty-adapter "0.3.5"]
[hiccup "0.3.1"]
[postgresql "8.4-701.jdbc4"]
[clj-time "0.2.0-SNAPSHOT"]]
:dev-dependencies [[lein-eclipse "1.0.0"]]
:main squirrel-money.main
:repl-init-script "src/squirrel_money/init_repl.clj")
My main looks like this:
(ns squirrel-money.main
(:gen-class)
(:use
[compojure.core]
[ring.adapter.jetty])
(:require
[compojure.route :as route]
[squirrel-money.savings :as savings]))
(defn launch [routedef]
(run-jetty routedef {:port 17080}))
(defroutes money-routes
(GET "/savings" [] (savings/render))
(route/not-found "Page not found"))
(defn -main [& args] (launch money-routes))
With REPL works just fine. However, when I generate a jar with lein uberjar and try to execute it as:
java -jar squirrel-money-1.0.0-SNAPSHOT-standalone.jar
It dies with this exception:
Exception in thread "main" java.lang.NoClassDefFoundError: compojure/response/Renderable
at squirrel_money.main$fn__1067.invoke(main.clj:18)
at squirrel_money.main__init.load(Unknown Source)
at squirrel_money.main__init.<clinit>(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at clojure.lang.RT.loadClassForName(RT.java:1578)
at clojure.lang.RT.load(RT.java:399)
at clojure.lang.RT.load(RT.java:381)
at clojure.core$load$fn__4511.invoke(core.clj:4905)
at clojure.core$load.doInvoke(core.clj:4904)
at clojure.lang.RestFn.invoke(RestFn.java:409)
at clojure.lang.Var.invoke(Var.java:365)
at squirrel_money.main.<clinit>(Unknown Source)
Caused by: java.lang.ClassNotFoundException: compojure.response.Renderable
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
... 13 more
What am I doing wrong? How to get it to work?
Not sure if that matters, but I noticed that inside the jar my files, clojure itself and Java libs are unpacked as .class files, while all clojure libs are present only as plain .clj files.

Answer 1

This seems to be a leinigen 1.4.0 bug. You might want to try creating an uberjar with leiningen 1.3.1.
Edit:
Leiningen 1.4.0 deletes non-project .class files to work around a Clojure bug (see CLJ-322). Apparently this behavior can sometimes cause problems.
You can keep leiningen 1.4.0 from deleting non-project .class files by setting :keep-non-project-classes to true in your project.clj.
See the related leinigen issue for more info.