docs: private void validatePlanNumberOfPartitions(PartitionPlanDescriptor currentPlan) {
  
          int numPreviousPartitions = getTopLevelStepInstance().getPartitionPlanSize();
          int numCurrentPartitions = currentPlan.getNumPartitionsInPlan();
  
          if (logger.isLoggable(Level.FINE)) {
              logger.fine("For step: " + getStepName() + ", previous num partitions = " + numPreviousPartitions + ", and current num partitions = " + numCurrentPartitions);
          }
  
          if (executionType == ExecutionType.RESTART_NORMAL) {
              if (numPreviousPartitions == EntityConstants.PARTITION_PLAN_SIZE_UNINITIALIZED) {
                  logger.fine("For step: " + getStepName() + ", previous num partitions has not been initialized, so don't validate the current plan size against it");
              } else if (numCurrentPartitions != numPreviousPartitions) {
                  throw new IllegalArgumentException("Partition not configured for override, and previous execution used " + numPreviousPartitions +
                                                     " number of partitions, while current plan uses a different number: " + numCurrentPartitions);
              }
          }
  
          if (numCurrentPartitions < 1) {
              throw new IllegalArgumentException("Partition plan size is calculated as " + numCurrentPartitions + ", but at least one partition is needed.");
          }
      }