JavaFXでテキストノードの行間隔を調整するにはどうすればよいですか？

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.util.Scanner;
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import javafx.scene.text.Text;
import javafx.scene.text.TextAlignment;
public class TextSpacing extends Application {
   public void start(Stage stage) throws FileNotFoundException {
      //Reading the contents of a text file.
      InputStream inputStream = new FileInputStream("D:\\sample_text.txt");
      Scanner sc = new Scanner(inputStream);
      StringBuffer sb = new StringBuffer();
      while(sc.hasNext()) {
         sb.append(" "+sc.nextLine()+"\n");
      }
      //Creating a text object
      Text text = new Text(10.0, 25.0, sb.toString());
      //Wrapping the text
      text.setWrappingWidth(565);
      //Setting the alignment
      text.setTextAlignment(TextAlignment.JUSTIFY);
      //Setting the space
      text.setLineSpacing(2.0);
      //Setting the stage
      Group root = new Group(text);
      Scene scene = new Scene(root, 595, 150, Color.BEIGE);
      stage.setTitle("Line Spacing (2.0)");
      stage.setScene(scene);
      stage.show();
   }
   public static void main(String args[]){
      launch(args);
   }
}

sample.txt

sample.txtファイルの内容は次のとおりです-

Tutorials Point originated from the idea that there exists a class of readers who respond better 
to online content and prefer to learn new skills at their own pace from the comforts of their drawing rooms.
The journey commenced with a single tutorial on HTML in 2006 and elated by the response it generated, 
we worked our way to adding fresh tutorials to our repository which now proudly flaunts a wealth of 
tutorials and allied articles on topics ranging from programming languages to web designing to academics 
and much more.

出力

同様に、行間隔を8.0 − >