System.getProperty(“awt.toolkit”) is null when using javafx:run

[GG-A]

here is code:

public class Test extends Application {
    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) throws Exception {
        System.out.println("AWT_TOOLKIT class name：" + System.getProperty("awt.toolkit"));
        System.out.println("user.timezone：" + System.getProperty("user.timezone"));

        primaryStage.show();
    }
}

when I run application in intellj idea directly, it will work well, print:

AWT_TOOLKIT class name：sun.awt.windows.WToolkit
user.timezone：Asia/Shanghai

but when I use javafx:run, it will print:

AWT_TOOLKIT class name：null
user.timezone：null

and I create runtime-image use jlink, and run launcher.bat, it will print:

AWT_TOOLKIT class name：null
user.timezone：null

how to do?

[abhinayagarwal]

Can you confirm if the project in both IntelliJ IDEA and Maven are running on the same JDK?

An easy way to do this would be to add:

System.out.println(System.getProperty("java.version"));

[GG-A]

@abhinayagarwal Yes. they both use jdk 14.