import jakarta.annotation.Resource;
import jakarta.enterprise.concurrent.CronTrigger;
import jakarta.enterprise.concurrent.ManagedScheduledExecutorService;
import jakarta.enterprise.context.ApplicationScoped;
import jakarta.enterprise.event.Observes;
import jakarta.enterprise.event.Startup;

import java.time.ZoneId;

@ApplicationScoped
public class DummyBean {

    @Resource(mappedName = "java:jboss/ee/concurrency/scheduler/default")
    ManagedScheduledExecutorService executorService;

    public DummyBean() {
    }

    private void onStart(@Observes Startup startup) {
        executorService.schedule(() -> something(), new CronTrigger(ZoneId.systemDefault()).hours("*").minutes("*").seconds("*/10"));
    }

    private void something() {
        System.out.println("something " + System.currentTimeMillis());
    }

}