@@ -0,0 +1,596 @@
+package com.alibaba.json.bvt.issue_1000;%0A%0Aimport com.alibaba.fastjson.JSON;%0Aimport com.alibaba.fastjson.JSONObject;%0Aimport com.alibaba.fastjson.serializer.SerializerFeature;%0Aimport junit.framework.TestCase;%0A%0Aimport java.util.HashMap;%0Aimport java.util.Map;%0A%0A/**%0A * Created by wenshao on 11/06/2017.%0A */%0Apublic class Issue1083 extends TestCase %7B%0A    public void test_for_issue() throws Exception %7B%0A        Map map = new HashMap();%0A        map.put(%22userId%22, 456);%0A        String json = JSON.toJSONString(map, SerializerFeature.WriteNonStringValueAsString);%0A        System.out.println(json);%0A    %7D%0A%7D%0A

add testcase for issue #1083