docs: public static void fireOnUpdated(@Nonnull Node oldOne, @Nonnull Node newOne) {
          for (NodeListener nl: all()) {
              try {
                  nl.onUpdated(oldOne, newOne);
              } catch (Throwable ex) {
                  LOGGER.log(Level.WARNING, "Listener invocation failed", ex);
              }
          }
      }