Java 执行另一个方法时未运行事件方法（Discord JDA）

我正在用JDA制作一个Java discord机器人。在我的onMessageReceived（）方法中，我创建了游戏类的新类对象，然后运行我的Game.start（）方法。在方法的末尾，该方法执行game类中的另一个方法，onMessageReceived（）方法应该完成。但是，它完全停止工作，直到游戏对象的方法字符串完成。然后，它处理中间发送的所有消息并输出结果。为什么会发生这种情况？当我的游戏对象正在执行方法时，如何使onMessageReceived（）工作

以下是我在onMessageReceived（）中的相关代码：

从游戏方法来看：

public void start(int qs, String categoryin, String difficultyin, String typein) {
        channel.sendMessage("Starting Trivia...").queue();
        numberofqs = qs;
        String difficulty;
        String type;
        String category;
        pointsperq = 1;
        if (difficultyin.equalsIgnoreCase("easy")) {
            difficulty = "easy";
            channel.sendMessage("Difficulty = Easy").queue();
        } else if (difficultyin.equalsIgnoreCase("normal")) {
            difficulty = "medium";
            pointsperq = pointsperq*2;
            channel.sendMessage("Difficulty = Normal").queue();
        } else if (difficultyin.equalsIgnoreCase("hard")) {
            difficulty = "hard";
            pointsperq = pointsperq*3;
            channel.sendMessage("Difficulty = Hard").queue();
        } else  {
            difficulty = "";
            channel.sendMessage("Difficulty = Any").queue();
            pointsperq = pointsperq*2;
        }
        if (typein.equalsIgnoreCase("tf")) {
            type = "boolean";
            channel.sendMessage("Question Type = True/False").queue();
        } else if (typein.equalsIgnoreCase("mc")) {
            type = "multiple";
            pointsperq = pointsperq*3;
            channel.sendMessage("Question Type = Multiple Choice").queue();
        } else {
            type = "";
            pointsperq = pointsperq*2;
            channel.sendMessage("Question Type = Any").queue();
        }
        if (triviaDB.getCategory().contains(categoryin)) {
            channel.sendMessage("Category = "+categoryin).queue();
            category = categoryin;
        } else {
            channel.sendMessage("Category = Any").queue();
            category = "";
        }
            channel.sendMessage("# of Q's = "+qs).queue();
        questions = new HashMap<>(triviaDB.getQuestions(qs, category, difficulty, type));
        qnumber = 1;
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        channel.sendMessage("Welcome to Trivia Game "+name).queue();
        channel.sendMessage("Starting in 10 Seconds!").queue();
        try {
            Thread.sleep(10000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        displayQuestion(qnumber);
    }

public void start（int-qs，String-categoryin，String-hardicultyin，String-typein）{
channel.sendMessage（“启动琐事…”）。queue（）；
numberofqs=qs；
弦乐难度；
字符串类型；
字符串类别；
pointsperq=1；
if（同等信号情况下的困难（“容易”））{
难度=“容易”；
channel.sendMessage（“困难=容易”）.queue（）；
}else if（同等信号情况下的困难（“正常”））{
难度=“中等”；
pointsperq=pointsperq*2；
channel.sendMessage（“难度=正常”）.queue（）；
}else if（同等信号情况下的困难（“硬”））{
难度=“难”；
pointsperq=pointsperq*3；
channel.sendMessage（“难度=硬”）.queue（）；
}否则{
难度=”；
channel.sendMessage（“困难=任何”）.queue（）；
pointsperq=pointsperq*2；
}
如果（键入相等信号情况（“tf”））{
type=“boolean”；
channel.sendMessage（“问题类型=真/假”）.queue（）；
}else if（键入相等信号情况（“mc”））{
type=“多个”；
pointsperq=pointsperq*3；
channel.sendMessage（“问题类型=多项选择”）.queue（）；
}否则{
类型=”；
pointsperq=pointsperq*2；
channel.sendMessage（“问题类型=任何”）.queue（）；
}
if（triviaDB.getCategory（）.contains（categoryin））{
channel.sendMessage（“Category=“+categoryin）.queue（）；
类别=类别；
}否则{
channel.sendMessage（“Category=Any”）.queue（）；
类别=”；
}
channel.sendMessage（“#of Q's=“+qs）.queue（）”；
问题=新的HashMap（triviaDB.getQuestions（qs、类别、难度、类型））；
qnumber=1；
试一试{
睡眠（3000）；
}捕捉（中断异常e）{
e、 printStackTrace（）；
}
channel.sendMessage（“欢迎来到琐事游戏”+name）.queue（）；
channel.sendMessage（“10秒后开始！”）.queue（）；
试一试{
睡眠（10000）；
}捕捉（中断异常e）{
e、 printStackTrace（）；
}
显示问题（qnumber）；
}

public void start(int qs, String categoryin, String difficultyin, String typein) {
        channel.sendMessage("Starting Trivia...").queue();
        numberofqs = qs;
        String difficulty;
        String type;
        String category;
        pointsperq = 1;
        if (difficultyin.equalsIgnoreCase("easy")) {
            difficulty = "easy";
            channel.sendMessage("Difficulty = Easy").queue();
        } else if (difficultyin.equalsIgnoreCase("normal")) {
            difficulty = "medium";
            pointsperq = pointsperq*2;
            channel.sendMessage("Difficulty = Normal").queue();
        } else if (difficultyin.equalsIgnoreCase("hard")) {
            difficulty = "hard";
            pointsperq = pointsperq*3;
            channel.sendMessage("Difficulty = Hard").queue();
        } else  {
            difficulty = "";
            channel.sendMessage("Difficulty = Any").queue();
            pointsperq = pointsperq*2;
        }
        if (typein.equalsIgnoreCase("tf")) {
            type = "boolean";
            channel.sendMessage("Question Type = True/False").queue();
        } else if (typein.equalsIgnoreCase("mc")) {
            type = "multiple";
            pointsperq = pointsperq*3;
            channel.sendMessage("Question Type = Multiple Choice").queue();
        } else {
            type = "";
            pointsperq = pointsperq*2;
            channel.sendMessage("Question Type = Any").queue();
        }
        if (triviaDB.getCategory().contains(categoryin)) {
            channel.sendMessage("Category = "+categoryin).queue();
            category = categoryin;
        } else {
            channel.sendMessage("Category = Any").queue();
            category = "";
        }
            channel.sendMessage("# of Q's = "+qs).queue();
        questions = new HashMap<>(triviaDB.getQuestions(qs, category, difficulty, type));
        qnumber = 1;
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        channel.sendMessage("Welcome to Trivia Game "+name).queue();
        channel.sendMessage("Starting in 10 Seconds!").queue();
        try {
            Thread.sleep(10000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        displayQuestion(qnumber);
    }