public void diffCounts(CountBugs other) {
public void diffCounts(CountBugs newer) {
	public void diffCounts(CountBugs other) {		TreeSet<String> allCategories = new TreeSet<String>();		allCategories.addAll(countMap.keySet());		allCategories.addAll(other.countMap.keySet());		for (Iterator<String> i = allCategories.iterator(); i.hasNext(); ) {			String category = i.next();			Integer delta = new Integer(getCount(category).intValue() - other.getCount(category).intValue());			countMap.put(category, delta);		}	}