// Sonar says threading issues.
SimpleDateFormat FMT = new SimpleDateFormat("yyyyMM");
String yyyymm = req.getParameter("yyyymm");
- ArrayList<Integer> ai= new ArrayList<Integer>();
+ ArrayList<Integer> ai= new ArrayList<>();
if(yyyymm==null) {
GregorianCalendar gc = new GregorianCalendar();
// three months is the default