Metacat

		//make sure there are no "?column?" headers

		for (int i = 0; i < columnHeaders.size(); i++) {

			String columnName = (String) columnHeaders.get(i);

			if (columnName.equals("?column?")) {

				String previousColumn = (String) columnHeaders.get(i-1);

				String[] previousParts = previousColumn.split("_");

				int previousCount = Integer.parseInt(previousParts[1]);

				columnName = previousParts[0]  + "_"+ (previousCount + 1);

				columnHeaders.set(i, columnName);

			}

		}