title: How to install source/javadoc for Eclipse PDE?
body: <p>I have installed Plugin Development Environment on my Eclipse 3.8 via  <a href="http://download.eclipse.org/releases/juno" rel="noreferrer">http://download.eclipse.org/releases/juno</a> update site. Now in PDE projects under the "Plugin Dependencies" tree I see that all PDE JARs have attached source set to the same JARs. Yet, the JARs do not contain any sources - only class files.</p>
  
  <p>Because of this I see no Javadoc for PDE/JFace classes and get ugly arg0, arg1, etc for auto-generated code.</p>
  
  <p>Where and how can I get sources or Javadoc for PDE/JFace?</p>