Map<String,Integer> failureModes = new HashMap<String,Integer>();
for(Entry<GregorianCalendar,DumpElement> entry : map.entrySet()) {
GregorianCalendar date = entry.getKey();
DumpElement element = entry.getValue();
if(element.pullTimes != null) {
date = (GregorianCalendar) date.clone();
date.add(Calendar.DAY_OF_MONTH, -delta);
System.out.println("Checking "+date.getTime()+" for "+element.date.getTime()+" delta "+delta);
DumpElement inserted = map.get(date);
if(inserted == null) {
System.out.println("No match");