code: private static Class<?> loadFinalizer(FinalizerLoader... loaders) {
      for (FinalizerLoader loader : loaders) {
        Class<?> finalizer = loader.loadFinalizer();
        if (finalizer != null) {
          return finalizer;
        }
      }
  
      throw new AssertionError();
    }
docs: Iterates through the given loaders until it finds one that can load Finalizer.
  
  @return Finalizer.class