code: ResultAction executeOperation() {
  
          assert isControllingThread();
          try {
              /** Execution has begun */
              executing = true;
  
              processStages();
  
              if (resultAction == ResultAction.KEEP) {
                  report(MessageSeverity.INFO, ControllerLogger.ROOT_LOGGER.operationSucceeded());
              } else {
                  report(MessageSeverity.INFO, ControllerLogger.ROOT_LOGGER.operationRollingBack());
              }
          } catch (RuntimeException e) {
              handleUncaughtException(e);
              ControllerLogger.MGMT_OP_LOGGER.unexpectedOperationExecutionException(e, controllerOperations);
          } finally {
              // On failure close any attached response streams
              if (resultAction != ResultAction.KEEP && !isBooting()) {
                  synchronized (this) {
                      if (responseStreams != null) {
                          int i = 0;
                          for (OperationResponse.StreamEntry is : responseStreams.values()) {
                              try {
                                  is.getStream().close();
                              } catch (Exception e) {
                                  ControllerLogger.MGMT_OP_LOGGER.debugf(e, "Failed closing stream at index %d", i);
                              }
                              i++;
                          }
                          responseStreams.clear();
                      }
                  }
              }
          }
  
  
          return resultAction;
      }
docs: Package-protected method used to initiate operation execution.
  @return the result action