case SLOPPY_COMPARATOR: comparator = new SloppyBugComparator(); break;
	public Comparator<BugInstance> getComparator() {		if (comparator == null) {			switch (comparatorType) {			case DEFAULT_COMPARATOR:				comparator = new SortedBugCollection.BugInstanceComparator();				break;			case VERSION_INSENSITIVE_COMPARATOR:				comparator = VersionInsensitiveBugComparator.instance();				break;			case FUZZY_COMPARATOR:				FuzzyBugComparator fuzzyComparator = new FuzzyBugComparator();				fuzzyComparator.registerBugCollection(origCollection);				fuzzyComparator.registerBugCollection(newCollection);				comparator  = fuzzyComparator;				break;			default:				throw new IllegalStateException("Unknown comparator type: " + comparatorType);			}		}		return comparator;	}