1.14.4 How to remove the generation from BookMeta?

I'm trying to create a custom book without the "Original" or "Copy of Original" line of text right underneath the author. On the BookMeta API it specifies that if I run setGeneration(null); on the BookMeta, it should remove it, but this isn't working for me.

Code:

Code (Text):

package lucien.HardcoreGames.kits;

import java.util.ArrayList;
import java.util.List;

import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.BookMeta;

import com.connorlinfoot.actionbarapi.ActionBarAPI;

import lucien.HardcoreGames.game.ChosenKits;
import lucien.HardcoreGames.game.Tracking;

public class Analyzer {
    public static void createInfoBook(Player analyzer, List<Player> playerList) {
    //Creates the book item
    ItemStack analyzedBook = new ItemStack(Material.WRITTEN_BOOK, 1);
    //Saves information that the book contains
    BookMeta bookInfo = (BookMeta)analyzedBook.getItemMeta();
    //Sets the author
    bookInfo.setAuthor(ChatColor.YELLOW + "Lucien");
    //Sets the title
    bookInfo.setTitle(ChatColor.BOLD + "" + ChatColor.DARK_PURPLE + "Pre-Game Analysis");
    //Creates a new list to store the book lore
    List<String> lore = new ArrayList<String>();
    //Adds lore to the lore list
    lore.add(ChatColor.translateAlternateColorCodes('&', "&8&l-&7Shows the kit chosen by each opponent."));
    //Sets the lore of the book to the lore list
    bookInfo.setLore(lore);
    //Creates a new list to store the pages of the book
    List<String> pages = new ArrayList<String>();
    for(Player player : playerList) {
        pages.add(ChatColor.translateAlternateColorCodes('&', player.getName() + ": " + ChosenKits.playerKits.get(player.getName())));
    }
    bookInfo.setPages(pages);
    bookInfo.setGeneration((BookMeta.Generation)null);
    analyzedBook.setItemMeta(bookInfo);
    analyzer.getInventory().addItem(analyzedBook);

    }
}

I'm on version 1.14.4, any help is appreciated. Thanks in advance