Getting The Source Code For JavaFX UI

Execute: hg clone http://hg.openjdk.java.net/openjfx/2.1/master/rt
and you will get the source for the JavaFX UI controls with a NetBeans project.

package com.sun.javafx;

public class PlatformUtil {

    public static boolean isMac() {
        throw new UnsupportedOperationException("Not yet implemented");
    }

    public static boolean isWindows() {
        throw new UnsupportedOperationException("Not yet implemented");
    }
    
}