jruby9k - cannot initialize Java class clojure.lang.RT

jruby 1.7.20 (1.9.3p551) 2015-05-04 3086e6a on Java HotSpot(TM) 64-Bit Server VM 1.7.0_79-b15 +jit [darwin-x86_64]

>> $LOAD_PATH << File.expand_path('../vendor', __FILE__)
>> require "frak-0.1.7-SNAPSHOT-standalone.jar"
=> true
>> Java::clojure.lang.RT
=> Java::ClojureLang::RT
>> require "jrclj"
=> true

jruby 9.0.0.0-SNAPSHOT (2.2.2) 2015-05-27 2ce76a5 Java HotSpot(TM) 64-Bit Server VM 24.79-b02 on 1.7.0_79-b15 +jit [darwin-x86_64]

>> $LOAD_PATH << File.expand_path('../vendor', __FILE__)
>> require "frak-0.1.7-SNAPSHOT-standalone.jar"
=> true
>> require "jrclj"
NameError: cannot initialize Java class clojure.lang.RT
	from org/jruby/javasupport/JavaClass.java:204:in `for_name'
	from org/jruby/javasupport/JavaUtilities.java:34:in `get_proxy_class'
	from uri:classloader:/jruby/java/core_ext/object.rb:47:in `block in java_import'
	from org/jruby/RubyArray.java:2309:in `map'
	from uri:classloader:/jruby/java/core_ext/object.rb:34:in `java_import'
	from /Users/klemanski/.rvm/gems/jruby-head/gems/jrclj-1.0.1/lib/jrclj.rb:4:in `<top>'
	from org/jruby/RubyKernel.java:934:in `require'
	from /Users/klemanski/.rvm/rubies/jruby-head/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:1:in `(root)'
	from /Users/klemanski/.rvm/rubies/jruby-head/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:128:in `<eval>'
	from org/jruby/RubyKernel.java:973:in `eval'
	from (irb):3:in `evaluate'
	from org/jruby/RubyKernel.java:1286:in `loop'
	from org/jruby/RubyKernel.java:1093:in `catch'
	from org/jruby/RubyKernel.java:1093:in `catch'

>> Java::ClojureLang::RT
NameError: cannot initialize Java class clojure.lang.RT
	from org/jruby/javasupport/JavaClass.java:204:in `for_name'
	from org/jruby/javasupport/JavaUtilities.java:34:in `get_proxy_class'
	from uri:classloader:/jruby/java/java_package_module_template.rb:4:in `const_missing'
	from (irb):4:in `<eval>'
	from org/jruby/RubyKernel.java:973:in `eval'
	from org/jruby/RubyKernel.java:1286:in `loop'
	from org/jruby/RubyKernel.java:1093:in `catch'
	from org/jruby/RubyKernel.java:1093:in `catch'
	from /Users/klemanski/.rvm/rubies/jruby-head/bin/irb:13:in `<top>'