gistfile1.txt

charlie@igeoliser:/usr/lib/jvm$ rvm install jruby-headjruby-head - #fetching 
HEAD is now at 7de254f Redo the commit (de5976b9) that didn't quite work. Magic comment should be processed if and only if the comment is on the first line and there are no preceding tokens on that line.
From git://github.com/jruby/jruby
 * branch            master     -> FETCH_HEAD
Already up-to-date.
Copying from repo to src path...
jruby-head - #ant jar
Error running 'ant jar ', please read /home/charlie/.rvm/log/jruby-head/ant.jar.log
jruby-head - #ant cext
Error running 'ant cext', please read /home/charlie/.rvm/log/jruby-head/ant.cext.log
cext is know to fail please report here: https://jira.codehaus.org/browse/JRUBY
Building Nailgun
jruby-head - #installing to /home/charlie/.rvm/rubies/jruby-head
jruby-head - #importing default gemsets (/home/charlie/.rvm/gemsets/)
Exception in thread "main" java.lang.NoClassDefFoundError: org/jruby/Main
Caused by: java.lang.ClassNotFoundException: org.jruby.Main
	at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
Could not find the main class: org.jruby.Main. Program will exit.