Deserializing an object with an array is returning null with GSON, why?

Question

I have this result from server:
{"product_option_values":[{"id":43}, {"id":45}]}

And, I Have these classes to parse the above string for the class below

public class MyClass {

    @Key("product_option_values")
    private List<ProductOptionValueResult> values;

    public List<ProductOptionValueResult> getValues() {
        return values;
    }

    public void setValues(List<ProductOptionValueResult> values) {
        this.values = values;
    }
}

public class ProductOptionValueResult {

    private Integer id;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }
}

I'm trying to convert the string above to an instance of MyClass like this:

MyClass myclass = gson.fromJson(stringAbove, MyClass.class);

However I get null in the object's values property, why?

Belongs to library GSON too. package com.google.api.client.util — Geferson
– Geferson, Commented Aug 25, 2020 at 12:35

andrewJames · Accepted Answer · 2020-08-25 01:06:01Z

1

Instead of this annotation:

@Key("product_option_values")

You can use this one:

@SerializedName("product_option_values")

This is from com.google.gson.annotations.SerializedName.

answered Aug 25, 2020 at 1:06

andrewJames

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