<dependency>
           <groupId>com.alibaba.fastjson2</groupId>
           <artifactId>fastjson2</artifactId>
           <version>2.0.53</version>
       </dependency>

record Transform(Bridge bridge) {
        public Transform(String from, String to) {
            this(new Bridge(from, to));
        }

        public Transform(Bridge bridge) {
            this.bridge = bridge;
        }
    }

    record Bridge(String from, String to) {
    }

    @Test
    public void testJDKRecord() throws Exception {
        String json = JSON.toJSONString(new Transform("zhangsan", "lisi"));
        System.out.println(json);
        Transform transform = JSON.parseObject(json, Transform.class);
        System.out.println(transform);
  }

{"bridge":{"from":"zhangsan","to":"lisi"}}
Transform[bridge=Bridge[from=zhangsan, to=lisi]]

{"bridge":{"from":"zhangsan","to":"lisi"}}

com.alibaba.fastjson2.JSONException: invoke constructor error, public com.yiduo.jdk.example.Fastjson2ExampleTestCase$Transform(com.yiduo.jdk.example.Fastjson2ExampleTestCase$Bridge)

	at com.alibaba.fastjson2.reader.ConstructorFunction.apply(ConstructorFunction.java:132)
	at com.alibaba.fastjson2.reader.ConstructorFunction.apply(ConstructorFunction.java:15)
	at com.alibaba.fastjson2.reader.ObjectReaderNoneDefaultConstructor.readObject(ObjectReaderNoneDefaultConstructor.java:351)
	at com.alibaba.fastjson2.JSON.parseObject(JSON.java:864)
	at com.yiduo.jdk.example.Fastjson2ExampleTestCase.testJDKRecord(Fastjson2ExampleTestCase.java:12)
	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1596)
Caused by: java.lang.IllegalArgumentException: argument type mismatch
	at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:65)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486)
	at com.alibaba.fastjson2.reader.ConstructorFunction.apply(ConstructorFunction.java:129)
	... 7 more
Caused by: java.lang.ClassCastException: Cannot cast java.lang.String to com.yiduo.jdk.example.Fastjson2ExampleTestCase$Bridge
	at java.base/java.lang.Class.cast(Class.java:4067)
	at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62)
	... 10 more

static class Transform2 {
        private Bridge2 bridge;

        public Transform2() {
        }

        public Transform2(String from, String to) {
            this(new Bridge2(from, to));
        }

        public Transform2(Bridge2 bridge) {
            this.bridge = bridge;
        }

        public Bridge2 getBridge() {
            return bridge;
        }

        @Override
        public String toString() {
            return "Transform2{" +
                    "bridge=" + bridge +
                    '}';
        }
    }

    static class Bridge2 {
        private String from;
        private String to;

        public Bridge2() {
        }

        public Bridge2(String from, String to) {
            this.from = from;
            this.to = to;
        }

        public String getFrom() {
            return from;
        }

        public String getTo() {
            return to;
        }

        public void setFrom(String from) {
            this.from = from;
        }

        public void setTo(String to) {
            this.to = to;
        }

        @Override
        public String toString() {
            return "Bridge2{" +
                    "from='" + from + '\'' +
                    ", to='" + to + '\'' +
                    '}';
        }

    }

   @Test
    public void testFastjson2Class() throws Exception {
        String json = JSON.toJSONString(new Transform2("zhangsan", "lisi"));
        System.out.println(json);
        Transform2 transform = JSON.parseObject(json, Transform2.class);
        System.out.println(transform);
    }

{"bridge":{"from":"zhangsan","to":"lisi"}}

Transform2{bridge=Bridge2{from='zhangsan', to='lisi'}}

{"bridge":{"from":"zhangsan","to":"lisi"}}

Transform2{bridge=null}