code: static Class getClassForName(String className)
        throws ClassNotFoundException
    {
      // Hack for backwards compatibility with XalanJ1 stylesheets
      if(className.equals("org.apache.xalan.xslt.extensions.Redirect")) {
        className = "org.apache.xalan.lib.Redirect";
      }
  
      return ObjectFactory.findProviderClass(
          className, ObjectFactory.findClassLoader(), true);
    }
docs: This method loads a class using the context class loader if we're
  running under Java2 or higher.
  
  @param className Name of the class to load