code: public static CompletionStage<Stage> displayExceptionPane(
          final String title,
          final String readable,
          final Throwable exception
      ) {
          final Pane exceptionPane = new ExceptionHandler(exception).asPane(readable);
          final CompletionStage<Stage> exceptionStage = Stages.stageOf(title, exceptionPane);
          return exceptionStage.thenCompose(Stages::scheduleDisplaying);
      }
docs: Creates a pop-up and displays it based on a given exception, pop-up title and custom error message.
  
  @param title     The title of the error pop-up
  @param readable  The custom label to display on top of the stack trace
  @param exception The exception to use
  
  @return a {@link CompletionStage} to know when the pop-up displayed and have a handle on it.