code: protected void initConfiguration() {
          getTomcat().setBaseDir(baseDir.getAbsolutePath());
  
          // Setup HTTP port listening
          getTomcat().setPort(getConfig().getPort());
  
          // Setup vaadin production mode
          getContext().addParameter(PRODUCTION_MODE_PARAM, String.valueOf(getConfig().isProductionMode()));
      }
docs: Adds the basic and default configuration of the the current {@link Tomcat}
  instance with the current {@link EmbedVaadinConfig config}.
  <p/>
  Does not map any servlet, though. Sub-classes are responsible to do this