code: public static NlsBundleFactory getBundleFactory() {
  
      if (bundleFactory == null) {
        synchronized (NlsAccess.class) {
          if (bundleFactory == null) {
            NlsBundleFactoryImpl impl = new NlsBundleFactoryImpl();
            impl.initialize();
          }
        }
      }
      return bundleFactory;
    }
docs: This method gets the default {@link NlsBundleFactory}.
  
  @return the default {@link NlsBundleFactory}.
  @since 3.0.0