Slick2D AlphaMapTest正在运行

Question

我正在尝试使用silck2d创建一个简单的基于状态的游戏，每当我运行这个简单的代码时，应该创建一个空窗口（到目前为止，除了状态的基本shell之外）。相反，它运行我从未调用过的AlphaMapTest程序......

import org.newdawn.slick.AppGameContainer;
import org.newdawn.slick.GameContainer;
import org.newdawn.slick.SlickException;
import org.newdawn.slick.state.StateBasedGame;

public class Plane extends StateBasedGame {

public static final String gamename = "Plane Game";
public static final int MENU = 1;
public static final int PLAY = 2;

public Plane(String gamename) {
    super(gamename);
    addState(new Menu(MENU));
    addState(new Play(PLAY));
}

@Override
public void initStatesList(GameContainer container) throws SlickException {
    getState(MENU).init(container, this);
    getState(PLAY).init(container, this);
    enterState(PLAY);
}

public void main(String[] args) {
    AppGameContainer appgc;
    try {
        appgc = new AppGameContainer(new Plane(gamename));
        appgc.setDisplayMode(600, 400, false);
        appgc.start();
    } catch (SlickException e) {
        e.printStackTrace();
    }
  }
}