Anil@anil-wadghules-macbook-pro ~/Code/rails/rails[master] λ bundle install
Exception in thread "main" java.lang.NoClassDefFoundError: org/jruby/Main
Caused by: java.lang.ClassNotFoundException: org.jruby.Main
	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)

Anil@anil-wadghules-macbook-pro ~/Code/rails/rails[master] λ which jruby
/Users/Anil/.rvm/rubies/jruby-head/bin/jruby