我正在创建一个应用程序，我想要一个功能，当用户按下 时E，它将把鼠标指针设置到屏幕的中心（使用该moveMouse()方法）。然而，它只是给了我一个IllegalStateException.

我尝试过使用 aGlassRobot代替（来自这个问题并接受了答案），但这只给了我一个IllegalAccessException代替。我究竟做错了什么？我需要添加一些东西吗？

代码和错误

IllegalStateException

注：底部附近有一条评论

Exception in thread "main" java.lang.reflect.InvocationTargetException
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1082)
Caused by: java.lang.ExceptionInInitializerError
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:465)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:364)
    ... 5 more
Caused by: java.lang.IllegalStateException: This operation is permitted on the event thread only; currentThread = main
    at javafx.graphics/com.sun.glass.ui.Application.checkEventThread(Application.java:447)
    at javafx.graphics/javafx.scene.robot.Robot.<init>(Robot.java:70)
    at com.galactify.tiles/com.galactify.tiles.HelloApplication.<clinit>(HelloApplication.java:37) // This is where …