title: Where is Java source code for various com.sun.* packages on Leopard?
body: <p>I am working on my MacBook at home, running Leopard, with the latest JDK 1.6 from Apple installed. In IDE, I'd like to browse source code for com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel, but IDE cannot find it. Another example I'd like to browse is com.sun.java.swing.plaf.nimbus.ButtonPainter.</p>
  
  <p>What JAR or ZIP do I need to add to my IDEA project in order to browse com.sun.<em>.nimbus.</em> classes inside IDE I'm only interested in Leopard, because this works fine on Windows with Sun's JDk.</p>
  
  <p>I know the Nimbus classes are available, because my app runs with the Nimbus Look and Feel.</p>