How to use JRuby + Nailgun + Buildr

Here's a quickstart guide to running Buildr with JRuby and Nailgun:

1. Install JRuby to some directory we'll call JRUBY_HOME

2. Add JRUBY_HOME/bin to your PATH

3. If you're not running windows, do the following:

cd JRUBY_HOME/tool/nailgun

4. Now, you should be able to start Nailgun from the command line:

jruby --ng-server

and you should see something like the following indicating Nailgun has started:

NGServer started on all interfaces, port 2113.

5. In another window/terminal, you can run Buildr:

jruby --ng -S buildr --version
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