code: @Bean
      @ConditionalOnMissingBean(DataBufferFactoryWrapper.class)
      public DataBufferFactoryWrapper<?> armeriaBufferFactory(
              Optional<DataBufferFactory> dataBufferFactory) {
          if (dataBufferFactory.isPresent()) {
              return new DataBufferFactoryWrapper<>(dataBufferFactory.get());
          }
          return DataBufferFactoryWrapper.DEFAULT;
      }
docs: Returns a new {@link DataBufferFactoryWrapper} for {@link ArmeriaWebServer} and
  {@link ArmeriaClientHttpConnector}.