@Override
 public void reset() {
   lock();
   try {
     super.reset();
     _allAvailableList = null;
   } finally {
     unlock();
   }
 }
 @Override
 public void reset() {
   lock();
   try {
     super.reset();
     _allAvailableList = null;
     _allByGlobalCoTerminusIdMap = null;
   } finally {
     unlock();
   }
 }