How to convert ArrayList of custom class to JsonArray in Java?

Question

I am trying to convert ArrayList of custom class to JsonArray. Below is my code. It executes fine but some JsonArray elements come as zeros even though they are numbers in the A

Answer 1

As an additional answer, it can also be made shorter.

List customerList = CustomerDB.selectAll();

JsonArray result = (JsonArray) new Gson().toJsonTree(customerList,
            new TypeToken>() {
            }.getType());