{
  "product": {
    "id": 1001,
    "name": "Wireless Headphones",
    "price": 199.99,
    "inStock": true,
    "categories": [
      "Electronics",
      "Audio"
    ],
    "manufacturer": {
      "name": "TechCorp",
      "country": "Japan"
    }
  }
}

import com.fasterxml.jackson.annotation.*;
import java.util.List;

public class Product {
    @JsonProperty("id")
    private Integer id;

    @JsonProperty("name")
    private String name;

    @JsonProperty("price")
    private Double price;

    @JsonProperty("inStock")
    private Boolean inStock;

    @JsonProperty("categories")
    private List<String> categories;

    @JsonProperty("manufacturer")
    private Manufacturer manufacturer;

    // Getters and setters...
}