alive = getVersionNum(versions, timeStamps, aliveAsString, true); dead = getVersionNum(versions, timeStamps, deadAsString, true);
present = getVersionNum(versions, timeStamps, presentAsString, true); absent = getVersionNum(versions, timeStamps, absentAsString, true);
		void adjustFilter(BugCollection collection) {			Map<String, AppVersion> versions = new HashMap<String, AppVersion>();			SortedMap<Long, AppVersion> timeStamps = new TreeMap<Long, AppVersion>();			for(Iterator<AppVersion> i = collection.appVersionIterator(); i.hasNext(); ) {				AppVersion v = i.next();				versions.put(v.getReleaseName(), v);				timeStamps.put(v.getTimestamp(), v);			}			first = getVersionNum(versions, timeStamps, firstAsString, true);			last = getVersionNum(versions, timeStamps, lastAsString, true);			before = getVersionNum(versions, timeStamps, beforeAsString, true);			after = getVersionNum(versions, timeStamps, afterAsString, false);			alive = getVersionNum(versions, timeStamps, aliveAsString, true);			dead = getVersionNum(versions, timeStamps, deadAsString, true);					}