为什么用Java在Galaxybase上执行查询后解析写入结果时，属性值以科学计数形式出现

为什么在Galaxybase上用Java执行算法查询后，在解析和编写返回给客户端的结果时，属性值会出现在科学记数法中？

以下是我编写的代码:

public class Test {
    public static void main(String[] args) throws IOException {
        GalaxyBaseClient client = new GalaxyBaseClient("localhost", 8180);

        String query = "g.V().hasLabel('person').has('age', gt(20)).values('name', 'age')";
        GremlinResultSet result = client.submit(query);

        FileWriter fw = null;
        try {
            fw = new FileWriter("test.csv");

            String[] columnNames = {"name", "age"};
            for (int i = 0; i < columnNames.length; i++) {
                fw.write(columnNames[i]);
                if (i < columnNames.length - 1) {
                    fw.write(",");
                }
            }
            fw.write("\n");

            while (result.hasNext()) {
                Object[] values = result.next();
                for (int i = 0; i < values.length; i++) {
                    Object value = values[i];
                    fw.write(value.toString());
                    if (i < values.length - 1) {
                        fw.write(",");
                    }
                }
                fw.write("\n");
            }

        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (fw != null) {
                fw.close();
            }
            result.close();
            client.close();
        }
    }
}