Java Generic method and generic deserializer

import com.google.gson.Gson;

import java.util.List;

public class Deserializer {

  public static void main(String[] args) {

    Book book1 = new Book(120000l, "Effective Java", "Josh Bloch");
    String json = new Gson().toJson(book1);
    System.out.println("Book JSON: " + json);
    Book deserialize = deserialize(json, Book.class);
    System.out.println("Book 2: " + deserialize);

    List<Book> books =
        List.of(new Book(1001l, "Java", "James Gosling"), new Book(1001l, "Groovy", "Venkat"));
    String booksJson = new Gson().toJson(books);
    System.out.println("Books: " + books);
    List<Book> deserialize1 = deserialize(booksJson, List.class);
    System.out.println("Books 2: " + deserialize1);
  }

  public static <T> T deserialize(String json, Class<T> clazz) {
    Gson gson = new Gson();
    return gson.fromJson(json, clazz);
  }

  static class Book {
    private long isbn;
    private String title;
    private String author;

    Book(long isbn, String title, String author) {
      this.isbn = isbn;
      this.title = title;
      this.author = author;
    }

    public long getIsbn() {
      return isbn;
    }

    public String getAuthor() {
      return author;
    }

    public String getTitle() {
      return title;
    }

    @Override
    public String toString() {
      return "Book{"
          + "isbn="
          + isbn
          + ", title='"
          + title
          + '\''
          + ", author='"
          + author
          + '\''
          + '}';
    }
  }
}