How to properly handle JSON serialization of a nested object with Gson in Java 17?
I'm refactoring my project and Quick question that's been bugging me - I'm working with an scenario with Gson when trying to serialize a nested object that contains lists. Specifically, I have a parent object that has a list of child objects, and I need to ensure that all properties, including nested ones, are properly serialized. The scenario arises when trying to serialize the parent object; it throws a `JsonSyntaxException`. Here’s what my classes look like: ```java class Parent { private String name; private List<Child> children; // constructor, getters, and setters } class Child { private String name; private int age; // constructor, getters, and setters } ``` I’m attempting to serialize an instance of `Parent` like this: ```java Parent parent = new Parent("John", Arrays.asList(new Child("Jane", 5), new Child("Doe", 8))); Gson gson = new Gson(); String json = gson.toJson(parent); ``` However, I encounter the following behavior: ``` com.google.gson.JsonSyntaxException: 'name' is not a valid field in com.example.Child ``` I checked the `Child` class and confirmed that the fields are correct. I've also tried adding `@Expose` annotations on the fields, but it didn't resolve the scenario. I suspect it might have something to do with how Gson handles the serialization of nested lists. Has anyone encountered a similar question? What could be going wrong here? Any tips on how to properly serialize this structure using Gson in Java 17? I'd really appreciate any guidance on this. I'm on Ubuntu 22.04 using the latest version of Java.