[RT-36130] NPE at javafx.scene.text.Text.getSpanBounds(Text.java:292)

build.gradle

apply plugin: 'java'
apply plugin: 'application'

sourceCompatibility = '1.8'

mainClassName = 'Main'

repositories {
    mavenCentral()
    maven {
        url "https://oss.sonatype.org/content/repositories/snapshots"
    }
}

dependencies {
    compile "org.jfxtras:jfxtras-labs:8.0-r2-SNAPSHOT"
}

Main.java

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.text.Text;
import javafx.scene.text.TextFlow;
import javafx.stage.Stage;
import jfxtras.labs.scene.control.window.Window;
import jfxtras.labs.scene.layout.ScalableContentPane;

public class Main extends Application {

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) {
        ScalableContentPane root = new ScalableContentPane();
        Scene scene = new Scene(root, 800, 600);

        TextFlow textFlow = new TextFlow(new Text("The Code"));
        Window w = new Window("Editor");
        w.getContentPane().getChildren().add(textFlow);
        root.getContentPane().getChildren().add(w);

        primaryStage.setScene(scene);
        primaryStage.show();
    }
}

Download both files and place Main.java under src/main/java.

Run gradle run to execute.

This gist is the sample code to reproduce RT-36130.