docs: private static Object invokeNullaryFactoryMethod(final String fqcn, final String methodName) {
          try {
              final Class<?> type = Class.forName(fqcn);
              final Method method = type.getMethod(methodName);
  
              return method.invoke(null);
              // any exception is really unexpected since the type name has
              // already been verified
          } catch (final Exception e) {
              throw new InstantiationException(
                      String.format("Could not create %s#%s(): %s", fqcn, methodName, e), e);
          }
      }