spanner-data-validator-java/src/main/java/com/google/migration/partitioning/IntegerPartitionRangeListFetcher.java [69:87]:
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      if(constrainedStepSize <= 0) {
        throw new RuntimeException("Integer step size <= 0!");
      }
    }

    ArrayList<PartitionRange> bRanges = new ArrayList<>();

    if(partitionCount <= 0) {
      throw new IllegalArgumentException("Partition count must be > 0");
    } else if (partitionCount == 1) {
      String calculatedEndRangeStr = endStr;

      if(partialCoverage) {
        calculatedEndRangeStr = String.valueOf(start + constrainedStepSize);
      }

      PartitionRange range = new PartitionRange(startStr, calculatedEndRangeStr);
      bRanges.add(range);
    } else {
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spanner-data-validator-java/src/main/java/com/google/migration/partitioning/LongPartitionRangeListFetcher.java [70:88]:
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      if(constrainedStepSize <= 0) {
        throw new RuntimeException("Integer step size <= 0!");
      }
    }

    ArrayList<PartitionRange> bRanges = new ArrayList<>();

    if(partitionCount <= 0) {
      throw new IllegalArgumentException("Partition count must be > 0");
    } else if (partitionCount == 1) {
      String calculatedEndRangeStr = endStr;

      if(partialCoverage) {
        calculatedEndRangeStr = String.valueOf(start + constrainedStepSize);
      }

      PartitionRange range = new PartitionRange(startStr, calculatedEndRangeStr);
      bRanges.add(range);
    } else {
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