scala 调用fastjson 的toJSONString(） 报错

可变参数需要慎用，不然scala 调用的时候会出现以下问题。

Error:(29, 31) ambiguous reference to overloaded definition,
both method toJSONString in object JSON of type (x$1: Any, x$2: com.alibaba.fastjson.serializer.SerializerFeature*)String
and  method toJSONString in object JSON of type (x$1: Any)String
match argument types (com.sydney.dream.example.fastjson.module.Group)
        val jsonString = JSON.toJSONString(group)

public static String toJSONString(Object object) {
        return toJSONString(object, new SerializerFeature[0]);
    }

public static String toJSONString(Object object, SerializerFeature... features) {
    SerializeWriter out = new SerializeWriter();

    try {
        JSONSerializer serializer = new JSONSerializer(out);
        for (com.alibaba.fastjson.serializer.SerializerFeature feature : features) {
            serializer.config(feature, true);
        }

        serializer.write(object);

        return out.toString();
    } finally {
        out.close();
    }
}

所以我们调用的时候，显式调用不定长参数的方法。 JSON.toJSONString(group, new Array)