title: How to display classpath used for run task?
body: <p>How can the classpath used for <code>run</code> task be displayed under SBT 0.13?</p>
  <p>I have found some info here <a href="https://groups.google.com/forum/#!msg/simple-build-tool/0rhVRPnjyZU/DOYAd14gh1wJ" rel="noreferrer">https://groups.google.com/forum/#!msg/simple-build-tool/0rhVRPnjyZU/DOYAd14gh1wJ</a>:</p>
  <blockquote>
  <p>I was dumping my classpaths as a way to troubleshoot my build recently and maybe this task can help you too:</p>
  <pre><code>lazy val printClasspath = task {
    this.runClasspath.getPaths.foreach(println);
    None
  }
  </code></pre>
  <p>runClasspath is a PathFinder [1] instance and you can interrogate it even further. I guess building a ':'-separated list of those paths will be easy.</p>
  </blockquote>
  <p>I don't understand where and how I should use this tip. Please advise.</p>