ReportContextListener.java

@Extension
public class ReportContextListener implements ServletContextListener {
  
  private final AdministrationContext adminContext;
  private final SchedulerFactory schedulerFactory;
 
  @Inject
  public ReportContextListener(AdministrationContext adminContext,
                               SchedulerFactory schedulerFactory){
    this.adminContext = adminContext;
    this.schedulerFactory = schedulerFactory;
  }

  @Override
  public void contextDestroyed(ServletContextEvent sce) {}

  @Override
  public void contextInitialized(ServletContextEvent sce){
    Schedulers.schedule(adminContext, schedulerFactory, 
      SimpleScheduleBuilder.repeatMinutelyForever(), ReportJob.class);
  }
  
  private static class ReportJob implements Job {
    
    @Override
    public void execute(JobExecutionContext context) throws JobExecutionException {
      // do something minutely
    }
  }
}