Automatic resizing of LineChart fails if embedded in a pane - layout

Question

The following program fails to resize the line chart horizontally when embedded in a Pane (or borderpane of anchorpane for the matter)
If the line chart is directly parented to the VBox instead, then everything works as expected.
I found I needed to bind the chart size to the parent pane, which I assume must be done automatically by VBox and HBox.
After trying different combination of enclosing in HBox/VBox, setting growing and alignment policies, I am quite confused about how layouts work.
I observe that there are differences in how ui components behave wrt resizing.
Any clarification (or digest insight on javadoc unclear documentation) is appreciated.
Best regards.
Source edited and clarified
import javafx.application.Application;
import javafx.scene.*;
import javafx.scene.chart.*;
import javafx.scene.layout.*;
import javafx.stage.Stage;
public class App extends Application {
#Override
public void start(Stage stage) {
NumberAxis xAxis = new NumberAxis();
NumberAxis yAxis = new NumberAxis();
xAxis.setLabel("X");
yAxis.setLabel("Y");
final LineChart<Number, Number> lineChart = new LineChart<>(xAxis, yAxis);
lineChart.setTitle("x = f(y)");
XYChart.Series data = new XYChart.Series();
data.setName("Serie 1");
for (int i = 0; i < 10; i++) {
data.getData().add(new XYChart.Data(i, i * i));
}
lineChart.getData().add(data);
VBox vb = new VBox();
vb.setFillWidth(true);
HBox hb = new HBox();
hb.getChildren().add(lineChart);
hb.setFillHeight(true);
vb.getChildren().add(hb);
HBox.setHgrow(lineChart, Priority.ALWAYS);
VBox.setVgrow(hb, Priority.ALWAYS);
Scene scene = new Scene(vb);
stage.setScene(scene);
stage.centerOnScreen();
stage.setResizable(true);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}

Answer 1

For the record, the problem of the provided example is solved after modifying this typo:
HBox.setHgrow(hb, Priority.ALWAYS);
to:
HBox.setHgrow(lineChart, Priority.ALWAYS);
This fixes resizing horizontally.
When embedded directly in VBox, the chart's size is recomputed on resize, as it is anchored to the VBox, which boundaries change.
When embedded in a HBox, we have to provide a hint for the HBox to grow horizontally, and vertically.
Vertically it's done with:
VBox.setVgrow(hb, Priority.ALWAYS);
Horizontally it's done by requesting its content to occupy all available space, which the fix above is about.