docs: private Component getStartComponent() {
  
          VerticalLayout outerouter = new VerticalLayout();
          VerticalLayout outer = new VerticalLayout();
          outer.setSizeUndefined();
          HorizontalLayout layout = new HorizontalLayout();
  
          layout.setMargin(true);
          layout.setSpacing(true);
          layout.addStyleName(ValoTheme.LAYOUT_HORIZONTAL_WRAPPING);
  
          //Statistic about heap space
  
          layout.addComponent(getJavaCacheStatsPanel());
  
          Panel flex = new Panel();
          //        flex.setWidth("400px");
          flex.setContent(CmsCacheViewApp.getFlexStatisticButton().getInfoLayout());
  
          flex.setCaption(CmsVaadinUtils.getMessageText(Messages.GUI_CACHE_FLEX_0));
  
          HorizontalLayout flush = new HorizontalLayout();
  
          flush.addComponent(new CmsFlushCache());
          flush.setMargin(true);
  
          layout.addComponent(flex);
  
          outer.addComponent(flush);
          outer.addComponent(layout);
          outerouter.addStyleName("o-center");
          outerouter.addComponent(outer);
          return outerouter;
      }