TreeSet<BugInstance> result = new TreeSet<BugInstance>(versionInsensitiveBugComparator);
TreeSet<BugInstance> result = new TreeSet<BugInstance>(VersionInsensitiveBugComparator.instance());
	private static TreeSet<BugInstance> readSet(String filename, Project project) throws Exception {		SortedBugCollection bugCollection = new SortedBugCollection();		bugCollection.readXML(filename, project);		TreeSet<BugInstance> result = new TreeSet<BugInstance>(versionInsensitiveBugComparator);		result.addAll(bugCollection.getCollection());		return result;	}