There is no Java, only Ruby.
This is a sample ground for what a pure ruby Jenkins plugin would look like on its own. It is different than the jenkins-ruby-plugins-playground in that it is not "embedded" inside a vanilla Java plugin. It has its own structure that is completely independent.
Inside this plugin are several extension points.
- use JRuby
bundlerake server
This is a trivial BuildWrapper that outputs a message to the console whenever a build starts and when it finishes.
TestRootAction demonstrates adding links to the main sidebar.
reloads all of the Ruby classes in the plugin. Very useful for development!
https://github.com/cowboyd/jenkins-prototype-ruby-plugin/blob/master/models/root_action.rb#L72
list the contents of the ruby plugin