java.lang.ExceptionInInitializerError when running drake

[darthmall]

Just installed drake from homebrew, and when I run it I get a java.lang.ExceptionInInitializerError exception (see below).

Drakefile:

%test <-
	echo "test"

Java:

java version "9"
Java(TM) SE Runtime Environment (build 9+181)
Java HotSpot(TM) 64-Bit Server VM (build 9+181, mixed mode)

Exception in thread "main" java.lang.ExceptionInInitializerError
	at dynapath.defaults__init.load(Unknown Source)
	at dynapath.defaults__init.<clinit>(Unknown Source)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:375)
	at clojure.lang.RT.loadClassForName(RT.java:2093)
	at clojure.lang.RT.load(RT.java:430)
	at clojure.lang.RT.load(RT.java:411)
	at clojure.core$load$fn__5066.invoke(core.clj:5641)
	at clojure.core$load.doInvoke(core.clj:5640)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at clojure.core$load_one.invoke(core.clj:5446)
	at clojure.core$load_lib$fn__5015.invoke(core.clj:5486)
	at clojure.core$load_lib.doInvoke(core.clj:5485)
	at clojure.lang.RestFn.applyTo(RestFn.java:142)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$load_libs.doInvoke(core.clj:5524)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$require.doInvoke(core.clj:5607)
	at clojure.lang.RestFn.invoke(RestFn.java:421)
	at dynapath.util$loading__4958__auto__.invoke(util.clj:1)
	at dynapath.util__init.load(Unknown Source)
	at dynapath.util__init.<clinit>(Unknown Source)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:375)
	at clojure.lang.RT.loadClassForName(RT.java:2093)
	at clojure.lang.RT.load(RT.java:430)
	at clojure.lang.RT.load(RT.java:411)
	at clojure.core$load$fn__5066.invoke(core.clj:5641)
	at clojure.core$load.doInvoke(core.clj:5640)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at clojure.core$load_one.invoke(core.clj:5446)
	at clojure.core$load_lib$fn__5015.invoke(core.clj:5486)
	at clojure.core$load_lib.doInvoke(core.clj:5485)
	at clojure.lang.RestFn.applyTo(RestFn.java:142)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$load_libs.doInvoke(core.clj:5524)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$require.doInvoke(core.clj:5607)
	at clojure.lang.RestFn.invoke(RestFn.java:436)
	at cemerick.pomegranate$loading__4958__auto__.invoke(pomegranate.clj:1)
	at cemerick.pomegranate__init.load(Unknown Source)
	at cemerick.pomegranate__init.<clinit>(Unknown Source)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:375)
	at clojure.lang.RT.loadClassForName(RT.java:2093)
	at clojure.lang.RT.load(RT.java:430)
	at clojure.lang.RT.load(RT.java:411)
	at clojure.core$load$fn__5066.invoke(core.clj:5641)
	at clojure.core$load.doInvoke(core.clj:5640)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at clojure.core$load_one.invoke(core.clj:5446)
	at clojure.core$load_lib$fn__5015.invoke(core.clj:5486)
	at clojure.core$load_lib.doInvoke(core.clj:5485)
	at clojure.lang.RestFn.applyTo(RestFn.java:142)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$load_libs.doInvoke(core.clj:5524)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$require.doInvoke(core.clj:5607)
	at clojure.lang.RestFn.invoke(RestFn.java:457)
	at drake.plugins$loading__4958__auto__.invoke(plugins.clj:1)
	at drake.plugins__init.load(Unknown Source)
	at drake.plugins__init.<clinit>(Unknown Source)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:375)
	at clojure.lang.RT.loadClassForName(RT.java:2093)
	at clojure.lang.RT.load(RT.java:430)
	at clojure.lang.RT.load(RT.java:411)
	at clojure.core$load$fn__5066.invoke(core.clj:5641)
	at clojure.core$load.doInvoke(core.clj:5640)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at clojure.core$load_one.invoke(core.clj:5446)
	at clojure.core$load_lib$fn__5015.invoke(core.clj:5486)
	at clojure.core$load_lib.doInvoke(core.clj:5485)
	at clojure.lang.RestFn.applyTo(RestFn.java:142)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$load_libs.doInvoke(core.clj:5524)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$require.doInvoke(core.clj:5607)
	at clojure.lang.RestFn.invoke(RestFn.java:930)
	at drake.protocol$loading__4958__auto__.invoke(protocol.clj:1)
	at drake.protocol__init.load(Unknown Source)
	at drake.protocol__init.<clinit>(Unknown Source)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:375)
	at clojure.lang.RT.loadClassForName(RT.java:2093)
	at clojure.lang.RT.load(RT.java:430)
	at clojure.lang.RT.load(RT.java:411)
	at clojure.core$load$fn__5066.invoke(core.clj:5641)
	at clojure.core$load.doInvoke(core.clj:5640)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at clojure.core$load_one.invoke(core.clj:5446)
	at clojure.core$load_lib$fn__5015.invoke(core.clj:5486)
	at clojure.core$load_lib.doInvoke(core.clj:5485)
	at clojure.lang.RestFn.applyTo(RestFn.java:142)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$load_libs.doInvoke(core.clj:5524)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$require.doInvoke(core.clj:5607)
	at clojure.lang.RestFn.invoke(RestFn.java:436)
	at drake.protocol_interpreters$loading__4958__auto__.invoke(protocol_interpreters.clj:1)
	at drake.protocol_interpreters__init.load(Unknown Source)
	at drake.protocol_interpreters__init.<clinit>(Unknown Source)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:375)
	at clojure.lang.RT.loadClassForName(RT.java:2093)
	at clojure.lang.RT.load(RT.java:430)
	at clojure.lang.RT.load(RT.java:411)
	at clojure.core$load$fn__5066.invoke(core.clj:5641)
	at clojure.core$load.doInvoke(core.clj:5640)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at clojure.core$load_one.invoke(core.clj:5446)
	at clojure.core$load_lib$fn__5015.invoke(core.clj:5486)
	at clojure.core$load_lib.doInvoke(core.clj:5485)
	at clojure.lang.RestFn.applyTo(RestFn.java:142)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$load_libs.doInvoke(core.clj:5524)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.core$apply.invoke(core.clj:626)
	at clojure.core$require.doInvoke(core.clj:5607)
	at clojure.lang.RestFn.invoke(RestFn.java:3894)
	at drake.core$loading__4958__auto__.invoke(core.clj:1)
	at drake.core__init.load(Unknown Source)
	at drake.core__init.<clinit>(Unknown Source)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:375)
	at clojure.lang.RT.loadClassForName(RT.java:2093)
	at clojure.lang.RT.load(RT.java:430)
	at clojure.lang.RT.load(RT.java:411)
	at clojure.core$load$fn__5066.invoke(core.clj:5641)
	at clojure.core$load.doInvoke(core.clj:5640)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at clojure.lang.Var.invoke(Var.java:379)
	at drake.core.<clinit>(Unknown Source)
Caused by: java.lang.ClassNotFoundException: sun.misc.Launcher$ExtClassLoader
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
	at java.base/java.lang.Class.forName0(Native Method)
	at java.base/java.lang.Class.forName(Class.java:292)
	at dynapath.defaults$fn__917.<clinit>(defaults.clj:12)
	... 138 more

[chen-factual]

Looks like you ran into this: technomancy/leiningen#2149

As a first thing to try, can you run lein upgrade 2.8.1 and let us know if that works? There's also a chance we'll need to upgrade to Clojure 1.9.0.

[darthmall]

I downgraded from Java 9 to Java 8, and that got things going. Would upgrading to lein 2.8.1 make Drake work with Java 9? If so, I can try upgrading to Java 9 and lein 2.8.1, otherwise I can just stick with Java 8.

[chen-factual]

If you don't have a strong need of Java 9 that's what I would recommend. We'll address this at some point, but default priority is low until users (internal or external) start asking for it.

[darthmall]

I'll stick with Java 8, then. Thanks.

[dbaston]

Ran into this problem too. Would it make sense to have the drake bash script check the JAVA_HOME environment variable so that the user can specify a Java version at runtime, e.g., JAVA_HOME=/usr/local/java8 drake my_target ?