private void checkArgumentsValues() {
checkInputReportFile("BQSR",bqsrFile);
checkInputReportFile("before",beforeFile);
checkInputReportFile("after",afterFile);
if (bqsrFile == null && beforeFile == null && afterFile == null) {
throw new UserException("you must provide at least one recalibration report file "
+ "(arguments -BQSR, -" + BEFORE_ARG_SHORT_NAME + " or -" + AFTER_ARG_SHORT_NAME);
}
checkOutputFile(PDF_ARG_SHORT_NAME,pdfFile);
checkOutputFile(CSV_ARG_SHORT_NAME, csvFile);