code: @Override
    public Set<String> getJobKeys() {
  
      Set<String> outList = new HashSet<String>();
  
      synchronized (lock) {
        for (JobWrapper jw : jobsByKey.values()) {
  
          if (jw != null) {
  
            outList.add(jw.jobDetail.getName());
          }
        }
      }
  
      return outList == null ? java.util.Collections.<String>emptySet() : outList;
    }
docs: Get the names of all of the <code>{@link org.quartz.jobs.Job}</code> s