java - JFrame 构造函数在生成的代码中失败

Question

为我的窗口启动线程的简化代码:

public static LiDrThread lidrThread;
public void onKeyInput(InputEvent.KeyInputEvent event){
   if( lidrThread== null || !lidrThread.isAlive())
   {
      lidrThread= new LiDrThread();
      lidrThread.start();
   }
}

重写我的 LiDrThread 类中的 run 方法，它扩展了 Thread

private LightDrafterWindow window;
@Override
public void run() {
    try {
        LogHelper.info("Initializing window");
        window = new LightDrafterWindow();
        LogHelper.info("Setting window Visible");
        window.setVisible(true); // altered since original post
    } catch (Exception e) {
        LogHelper.warn("Window failed to open");
        e.printStackTrace();
    }
}

这是我的构造函数的精简代码，我的窗口扩展了 JFrame:

public JPanel contentPane;
public LightDrafterWindow() {
    LogHelper.info("Accessing PlayerName");
    LogHelper.info("Accessing Player Capabilities");

    LogHelper.info("Setting up basics of Window");
    //setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // line 48
    setBounds(100, 100, 450, 300);
    contentPane = new JPanel();
    setContentPane(contentPane);
    contentPane.setLayout(null);

    //PlayerInfo section -----------------------------------------------------------------------------------------------
    LogHelper.info("Initializing player info panel");
    contentPane.setVisible(true);
}

最后一个 LogHelper 之后还有更多内容，但这是我的控制台中显示的内容:

[18:12:46] [Thread-15/INFO] [lidr]: Initializing window
[18:12:46] [Thread-15/INFO] [lidr]: Accessing PlayerName
[18:12:46] [Thread-15/INFO] [lidr]: Accessing Player Capabilities
[18:12:46] [Thread-15/INFO] [lidr]: Setting up basics of Window
[18:12:46] [Thread-15/WARN] [lidr]: Window failed to open
[18:51:14] [Thread-15/INFO] [STDERR]: [main.java.lidr.thread.LiDrThread:run:23]: java.lang.ArrayIndexOutOfBoundsException: 5
[18:51:14] [Thread-15/INFO] [STDERR]: [main.java.lidr.thread.LiDrThread:run:23]:    at net.minecraftforge.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:21)
[18:51:14] [Thread-15/INFO] [STDERR]: [main.java.lidr.thread.LiDrThread:run:23]:    at java.lang.SecurityManager.checkExit(Unknown Source)
[18:51:14] [Thread-15/INFO] [STDERR]: [main.java.lidr.thread.LiDrThread:run:23]:    at javax.swing.JFrame.setDefaultCloseOperation(Unknown Source)
[18:51:14] [Thread-15/INFO] [STDERR]: [main.java.lidr.thread.LiDrThread:run:23]:    at main.java.lidr.thread.LightDrafterWindow.<init>(LightDrafterWindow.java:48)
[18:51:14] [Thread-15/INFO] [STDERR]: [main.java.lidr.thread.LiDrThread:run:23]:    at main.java.lidr.thread.LiDrThread.run(LiDrThread.java:18)

此时我不确定会出现什么问题。它似乎在生成的代码上失败了，我只是对 Gui 的了解不够，看不出有什么问题。

如果你想查看更多代码，我有这个项目 github

编辑------------注释掉导致此错误的行后，没有其他任何东西导致错误，但是 jframe 仍然没有显示。更新了代码以反射(reflect)更改。

Answer 1

问题来自 Forge 代码内部。里面有代码可以防止任何类调用系统退出。

解决方案是使用 DISPOSE_ON_CLOSE。