} else if (sortOrder.equals(BY_PACKAGE)) {
} else if (groupBy.equals(GROUP_BY_PACKAGE)) {
    private Comparator getGroupComparator(String sortOrder) {	if (sortOrder.equals(BY_CLASS)) {	    return bugInstanceClassComparator;	} else if (sortOrder.equals(BY_PACKAGE)) {	    return bugInstancePackageComparator;	} else if (sortOrder.equals(BY_CATEGORY)) {	    return bugInstanceTypeComparator;	} else	    throw new IllegalArgumentException("Bad sort order: " + sortOrder);    }