如何在javafx文本区域中显示计数查询的所有行？它只显示第一行，而不是两行

TextArea textArea = new TextArea();

String queryResult = executeCountQuery();

String[] lines = queryResult.split("\n");

for (String line : lines) {
    textArea.appendText(line + "\n");
}

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.TextArea;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class CountQueryResult extends Application {

    @Override
    public void start(Stage primaryStage) {
        TextArea textArea = new TextArea();
        String queryResult = executeCountQuery();
        String[] lines = queryResult.split("\n");
        for (String line : lines) {
            textArea.appendText(line + "\n");
        }
        VBox root = new VBox(textArea);
        Scene scene = new Scene(root, 400, 300);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    private String executeCountQuery() {
        // 执行计数查询的代码逻辑
        return "查询结果的所有行";
    }

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