WARN 2018-05-23 21:46:38,674          SystemErr - Exception in Application init method
WARN 2018-05-23 21:46:38,678          SystemErr - Exception in thread "main" 
WARN 2018-05-23 21:46:38,679          SystemErr - java.lang.RuntimeException: Exception in Application init method
WARN 2018-05-23 21:46:38,679          SystemErr - 	at com.sun.javafx.application.LauncherImpl.launchApplication1(Unknown Source)
WARN 2018-05-23 21:46:38,679          SystemErr - 	at com.sun.javafx.application.LauncherImpl.<unknown>(Unknown Source)
WARN 2018-05-23 21:46:38,680          SystemErr - 	at com.sun.javafx.application.LauncherImpl$$Lambda$37.run(Unknown Source)
WARN 2018-05-23 21:46:38,680          SystemErr - 	at java.lang.Thread.run(Unknown Source)

System.err.format(...

    private void showErrorWindow(String errorText) {
        Platform.runLater(() -> {
            ViewTuple<InfoController, ViewModel> viewTuple = FluentViewLoader.fxmlView(InfoController.class).load();
            Stage stage = new Stage();
            Scene scene = new Scene(viewTuple.getView());
            scene.setFill(javafx.scene.paint.Color.TRANSPARENT);
            stage.setScene(scene);
            stage.setTitle("Ошибка");
            URL resource = Thread.currentThread().getContextClassLoader().getResource(JavaFXTrayCreator.CSS_FILE_NAME);
            if (resource != null) stage.getScene().getStylesheets().add(resource.toExternalForm());
            InfoController errorController = viewTuple.getCodeBehind();
            errorController.setInitialData(InfoController.ERROR_TEXT, true, stage);
            errorController.setDialogText(errorText);
            JavaFXTrayCreator.addIconToTaskBar(JavaFXTrayCreator.TASK_BAR_ICON_1, stage);
            JavaFXTrayCreator.addIconToTaskBar(JavaFXTrayCreator.TASK_BAR_ICON_2, stage);
            viewTuple.getView().getStyleClass().add("root-stage");
            stage.initStyle(StageStyle.TRANSPARENT);
            stage.setOnCloseRequest(event -> {
                stage.close();
            });
            stage.show();
        });
    }