/** {@inheritDoc} */
 @Override
 public int getCurrentHeldJobsNumber() {
   return heldCnt.get();
 }
 /** {@inheritDoc} */
 @Override
 public int getCurrentActiveJobsNumber() {
   return runningCnt.get() + heldCnt.get();
 }
 /** {@inheritDoc} */
 @Override
 public int getCurrentRunningJobsNumber() {
   return runningCnt.get();
 }
 /** {@inheritDoc} */
 @Override
 public int getCurrentWaitJobsNumber() {
   return waitingCnt.get();
 }