title: How can we view the source of the Grails framework in STS?
body: <p>I would like to view the source of the Grails framework to check the behavior of, for example:</p>
  
  <pre><code>render
  redirect
  </code></pre>
  
  <p>I would like to see this in the STS IDE.
  Is there an option anywhere to import the Grails source?</p>