code: public void init(ConfigurationValueProvider... configurationValueProviders) {
          if (configurationValueProviders == null) {
              configurationValueProviders = new ConfigurationValueProvider[0];
          }
          this.configurationValueProviders = configurationValueProviders;
  
          this.reset();
      }
docs: Re-initialize the configuration with the given ConfigurationProviders. Any existing
  AbstractConfigurationContainer instances are reset to defaults.