public class ChatUtil{

private Game game;

public ChatUtil(Game game){
this.game = game;
}

public Game getGame(){
return game;
}

}

public class Game{

private Plugin plugin;
private ChatUtil chatUtil;

public Game(Plugin plugin){
this.plugin = plugin;
this.chatUtil = new ChatUtil(this);
}

public ChatUtil getChatUtil(){
return chatUtil;
}
public Plugin getPlugin(){
return plugin;
}

}

public class GamePlugin extends JavaPlugin{

private Game game;

@Override
public void onEnable(){
this.game = new Game(this);

}