@@ -0,0 +1,866 @@
+package com.alibaba.json.bvt;%0A%0Aimport com.alibaba.fastjson.JSON;%0Aimport com.alibaba.fastjson.serializer.SerializeConfig;%0Aimport com.alibaba.fastjson.serializer.SerializeFilter;%0Aimport com.alibaba.fastjson.serializer.SerializerFeature;%0Aimport junit.framework.TestCase;%0Aimport org.junit.Assert;%0A%0Aimport java.util.Collections;%0Aimport java.util.Map;%0A%0A/**%0A * Created by wenshao on 11/01/2017.%0A */%0Apublic class UnQuoteFieldNamesTest extends TestCase %7B%0A    public void test_for_issue() throws Exception %7B%0A        Map map = Collections.singletonMap(%22value%22, 123);%0A%0A        String json = JSON.toJSONString(map%0A                , SerializeConfig.globalInstance%0A                , new SerializeFilter%5B0%5D%0A                , null%0A                , JSON.DEFAULT_GENERATE_FEATURE & ~SerializerFeature.QuoteFieldNames.mask%0A        );%0A        assertEquals(%22%7Bvalue:123%7D%22, json);%0A    %7D%0A%7D%0A

add testcase.