this.classScreener = new ClassScreener();
	public FindBugs(BugReporter bugReporter, Project project) {		if (bugReporter == null)			throw new IllegalArgumentException("null bugReporter");		if (project == null)			throw new IllegalArgumentException("null project");		this.bugReporter = new ErrorCountingBugReporter(bugReporter);		this.project = project;		this.classObserverList = new LinkedList<ClassObserver>();		// Create a no-op progress callback.		this.progressCallback = new FindBugsProgress() {			public void reportNumberOfArchives(int numArchives) {			}			public void finishArchive() {			}			public void startAnalysis(int numClasses) {			}			public void finishClass() {			}			public void finishPerClassAnalysis() {			}		};		addClassObserver(bugReporter);	}