import com.csvvalidator.CSVValidator; import com.csvvalidator.error.CSVValidationError; import com.csvvalidator.error.CSVValidationException; CSVValidator validator = new CSVValidator(); validator.addRule("column1", "required"); validator.addRule("column2", "integer"); try { validator.validate("path/to/csv/file.csv"); } catch (CSVValidationException e) { List<CSVValidationError> errors = e.getValidationErrors(); for (CSVValidationError error : errors) { } }