code: protected UOWCoordinator updateUOWCoordinator() {
  
          UOWCurrent uowCurrent = (UOWCurrent) pm.connectorSvc.transactionManager;
          uowCoord = uowCurrent == null ? null : uowCurrent.getUOWCoord();
          return uowCoord;
  
      }
docs: Updates the <code>UOWCoordinator</code> instance.
  This will be used to retrieve the current UOW and update the instance variable.
  This will be used to re-initialize the uowCoord at a new transaction boundary.
  This will need to be set back to null at the completion of the current UOW.
  
  @return UOWCoordinator