How to get currently executing jobs In Quartz Schedular ?

Example:

import org.quartz.JobExecutionContext;
import org.quartz.Scheduler;
import org.quartz.impl.StdSchedulerFactory;

Scheduler sch=new StdSchedulerFactory().getScheduler();
List jobsList=sch.getCurrentlyExecutingJobs();
Iterator jobsIterator=jobsList.listIterator();

while(jobsIterator.hasNext()){
 JobExecutionContext context = 
                 (JobExecutionContext) jobsIterator.next();
 System.out.println(context.getJobDetail().getName());
}