Execute the below command using Gradle from the project directory:
./gradlew bootRunAlternatively, if you're using Maven, execute the following command from the project directory:
./mvnw spring-boot:runTo test the application, open a web browser and navigate to:
https://localhost:8443/

Log in with user1@example.com as the username and user1 as the password, and try accessing https://localhost:8443/events/backdoor.
You should see the Access Denied page now.
