add testcase for issue #3104

test-jdk17/src/test/java/com/alibaba/fastjson2/issues/Issue3104.java

@@ -0,0 +1,31 @@
+package com.alibaba.fastjson2.issues;
+
+import com.alibaba.fastjson2.JSON;
+import com.alibaba.fastjson2.annotation.JSONCreator;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class Issue3104 {
+    record Transform(Bridge bridge) {
+        public Transform(String from, String to) {
+            this(new Bridge(from, to));
+        }
+
+        @JSONCreator
+        public Transform(Bridge bridge) {
+            this.bridge = bridge;
+        }
+    }
+
+    record Bridge(String from, String to) {
+    }
+
+    @Test
+    public void test() {
+        String json = JSON.toJSONString(new Transform("zhangsan", "lisi"));
+        assertEquals("{\"bridge\":{\"from\":\"zhangsan\",\"to\":\"lisi\"}}", json);
+        Transform transform = JSON.parseObject(json, Transform.class);
+        System.out.println(transform);
+    }
+}