code: @Override
  	public void paint(final RenderContext renderContext) {
  		if (renderContext instanceof WebXmlRenderContext) {
  			PageContentHelper.addAllHeadlines(((WebXmlRenderContext) renderContext).getWriter(),
  					getUI().getHeaders());
  		}
  
  		getBackingComponent().paint(renderContext);
  	}
docs: Override paint in order to perform processing specific to this interceptor. This implementation is responsible
  for rendering the headlines for the UI.
  
  @param renderContext the renderContext to send the output to.