code: @SuppressWarnings("unchecked")
  	public static <T> Class<? extends T> loadClass(final Class<T> clazz,
  												   final ClassLoader classLoader, final String className)
  			throws ClassNotFoundException, IllegalAccessException {
  		NullArgumentException.validateNotNull(clazz, "Class");
  		NullArgumentException.validateNotNull(classLoader, "ClassLoader");
  		NullArgumentException.validateNotNull(className, "Servlet Class");
  		return (Class<? extends T>) classLoader.loadClass(className);
  	}
docs: Load a class from class name.
  
  @param clazz       class of the required object
  @param classLoader class loader to use to load the class
  @param className   class name for the class to load
  @return class object
  @throws NullArgumentException  if any of the parameters is null
  @throws ClassNotFoundException re-thrown
  @throws IllegalAccessException re-thrown