code: public static List<ComponentWithContext> findComponentsByClass(final WComponent root, final String className) {
  		return findComponentsByClass(root, className, true, true);
  	}
docs: Search for components implementing a particular class name.
  <p>
  Only search visible components and include the root component in the matching logic.
  </p>
  
  @param root the root component to search from
  @param className the class name to search for
  
  @return the list of components implementing the class name