code: public static <T> void mergeFrom(InputStream in, T message, Schema<T> schema, 
              boolean numeric) throws IOException
      {
          final IOContext context = new IOContext(DEFAULT_SMILE_FACTORY._getBufferRecycler(), 
                  in, false);
          final SmileParser parser = newSmileParser(in, context.allocReadIOBuffer(), 0, 0, 
                  true, context);
          
          //final SmileParser parser = DEFAULT_SMILE_FACTORY.createJsonParser(in);
          try
          {
              JsonIOUtil.mergeFrom(parser, message, schema, numeric);
          }
          finally
          {
              parser.close();
          }
      }
docs: Merges the {@code message} from the {@link InputStream} using the
  given {@code schema}.