@Nullable
 public static PluginId getPluginByClassName(@NotNull String className) {
   return ourPluginClasses.getPluginByClassName(className);
 }
 public static void dumpPluginClassStatistics() {
   ourPluginClasses.dumpPluginClassStatistics();
 }
 public static void addPluginClass(@NotNull String className, PluginId pluginId, boolean loaded) {
   ourPluginClasses.addPluginClass(className, pluginId, loaded);
 }