% java -DJENKINS_HOME=work -jar ./jenkins.war
Running from: /home/nahi/git/jenkins/war/target/jenkins.war
webroot: System.getProperty("JENKINS_HOME")
[Winstone 2011/08/25 18:58:14] - Beginning extraction from war file
Jenkins home directory: /home/nahi/git/jenkins-prototype-ruby-plugin/work found at: System.getProperty("JENKINS_HOME")
[Winstone 2011/08/25 18:58:16] - HTTP Listener started: port=8080
[Winstone 2011/08/25 18:58:16] - AJP13 Listener started: port=8009
[Winstone 2011/08/25 18:58:16] - Winstone Servlet Engine v0.9.10 running: controlPort=disabled
Aug 25, 2011 6:58:16 PM jenkins.model.Jenkins$6 onAttained
INFO: Started initialization
Aug 25, 2011 6:58:16 PM jenkins.model.Jenkins$6 onAttained
INFO: Listed all plugins
LoadError: no such file to load -- jenkins/plugin/runtime
  require at org/jruby/RubyKernel.java:1038
   (root) at <script>:1
Aug 25, 2011 6:58:19 PM jenkins.model.Jenkins$6 onTaskFailed
SEVERE: Failed Loading plugin ruby-prototype
hudson.util.IOException2: Failed to initialize
	at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:327)
	at hudson.PluginManager$2$1$1.run(PluginManager.java:285)
	at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:146)
	at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259)
	at jenkins.model.Jenkins$5.runTask(Jenkins.java:795)
	at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187)
	at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:679)
Caused by: org.jruby.embed.EvalFailedException: (LoadError) no such file to load -- jenkins/plugin/runtime
	at org.jruby.embed.internal.EmbedEvalUnitImpl.run(EmbedEvalUnitImpl.java:127)
	at org.jruby.embed.ScriptingContainer.runUnit(ScriptingContainer.java:1229)
	at org.jruby.embed.ScriptingContainer.runScriptlet(ScriptingContainer.java:1222)
	at ruby.RubyPlugin.start(RubyPlugin.java:128)
	at hudson.ClassicPluginStrategy.startPlugin(ClassicPluginStrategy.java:335)
	at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:324)
	... 9 more
Caused by: org.jruby.exceptions.RaiseException: (LoadError) no such file to load -- jenkins/plugin/runtime
Aug 25, 2011 6:58:19 PM jenkins.model.Jenkins$6 onAttained
INFO: Prepared all plugins
Aug 25, 2011 6:58:19 PM jenkins.model.Jenkins$6 onAttained
INFO: Started all plugins
Aug 25, 2011 6:58:19 PM jenkins.model.Jenkins$6 onAttained
INFO: Augmented all extensions
Aug 25, 2011 6:58:19 PM jenkins.model.Jenkins$6 onAttained
INFO: Loaded all jobs
Aug 25, 2011 6:58:20 PM jenkins.model.Jenkins$6 onAttained
INFO: Completed initialization
Aug 25, 2011 6:58:20 PM hudson.TcpSlaveAgentListener <init>
INFO: JNLP slave agent listener started on TCP port 32922