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error in Create New FXML Document wizard ? [message #1422598]

Fri, 12 September 2014 23:54

Eclipse User

The create a new FXML document wizard allows one to choose a scene as a root element. The generated file throws a "root cannot be null" error when attempting to open the document in SceneBuilder. Apparently, according to the docs, a scene absolutely requires a root element but cannot itself be a root element.

Eclipse v4.4.0, e(fx) v1.0.0.201408150702

Re: error in Create New FXML Document wizard ? [message #1422729 is a reply to message #1422598]

Sat, 13 September 2014 05:08

Eclipse User

This is *NOT* a bug in e(fx)clipse but SceneBuilder! The following
FXML-File and JavaCode are perfectly ok and expected to work

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.Scene?>
<?import javafx.scene.layout.BorderPane?>
<?import javafx.scene.control.Button?>

<Scene xmlns:fx="http://javafx.com/fxml/1">
<root>
<BorderPane >
<center>
<Button text="Hello World!!!"></Button>
</center>
</BorderPane>
</root>
</Scene>

> package application;
>
> import javafx.application.Application;
> import javafx.fxml.FXMLLoader;
> import javafx.scene.Scene;
> import javafx.stage.Stage;
>
>
> public class Main extends Application {
> @Override
> public void start(Stage primaryStage) {
> try {
> Scene scene = (Scene)FXMLLoader.load(getClass().getResource("Sample.fxml"));
> scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
> primaryStage.setScene(scene);
> primaryStage.show();
> } catch(Exception e) {
> e.printStackTrace();
> }
> }
>
> public static void main(String[] args) {
> launch(args);
> }
> }

So please report this as a bug against SceneBuilder.

Tom

On 13.09.14 05:54, ops incybr wrote:
> The create a new FXML document wizard allows one to choose a scene as a
> root element. The generated file throws a "root cannot be null" error
> when attempting to open the document in SceneBuilder. Apparently,
> according to the docs, a scene absolutely requires a root element but
> cannot itself be a root element.
>
> Eclipse v4.4.0, e(fx) v1.0.0.201408150702

Re: error in Create New FXML Document wizard ? [message #1423136 is a reply to message #1422729]

Sat, 13 September 2014 20:30

Eclipse User

Thank you for the advisory. Rather than have an inexperienced non-professional newbie inform Oracle of a new feature in SceneBuilder this hobbyist will simply avoid SceneBuilder and FMXL as a bug ridden pre-alpha disease.

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