HBox is created as following:

    private Parent createTopBar() {
        final HBox box = new HBox(2.0);
        box.setAlignment(Pos.BASELINE_LEFT);
        
        final TextBox nameInput = new TextBox(20);
        final PasswordBox passwordInput = new PasswordBox();
        final Button loginCmd = new Button("Log In...");
        
        
        final ProgressBar progressView = new ProgressBar(0.0);
        final Label label1 = new Label("Name:");
        final Label label2 = new Label("Password:");
        
        box.getChildren().addAll(
                label1,
                nameInput, 
                label2,
                passwordInput,
                loginCmd,
                progressView
                        );
        return box;
    }


The resulting layout is broken as shown at the attached screenshot.