Question

我尝试在JavaFX中显示警报对话框。

这是来源：

   Platform.runLater(new Runnable() {
           public void run() {
               Alert alert = new Alert(AlertType.CONFIRMATION);
               alert.setTitle("Confirmation dialog");
               alert.setContentText("remove ?");

               ButtonType btOk = new ButtonType("Yes");
               ButtonType btCancel = new ButtonType("Cancel",  ButtonData.CANCEL_CLOSE); 

               alert.getButtonTypes().setAll(btOk, btCancel);                       
               Optional<ButtonType> result = alert.showAndWait();
               ...
          } 
    });

当我执行此源时，我有以下错误消息：

Exception in thread "JavaFX Application Thread" java.util.ConcurrentModificationException
  at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901)
  at java.util.ArrayList$Itr.next(ArrayList.java:851)
  at com.sun.javafx.tk.quantum.GlassStage.windowsSetEnabled(GlassStage.java:166)
  at com.sun.javafx.tk.quantum.WindowStage.setVisible(WindowStage.java:470)
  at javafx.stage.Window$9.invalidated(Window.java:857)
  at javafx.beans.property.BooleanPropertyBase.markInvalid(BooleanPropertyBase.java:109)
  at javafx.beans.property.BooleanPropertyBase.set(BooleanPropertyBase.java:144)
  at javafx.stage.Window.setShowing(Window.java:910)
  at javafx.stage.Window.show(Window.java:925)
  at javafx.stage.Stage.show(Stage.java:259)
....

有什么想法吗？

有关信息，请使用此版本的JDK：8u60 ea-b13

提前谢谢你，

和Fabrice

JavaFX警报对话框和java.util.ConcurrentModificationException

0 个答案: