public static BugSet loadBugs(String fileName)
public static BugSet loadBugs(Project project, File file)
	public static BugSet loadBugs(String fileName)	{		try 		{			loadedProject=new Project();					SortedBugCollection col=new SortedBugCollection();			col.readXML(fileName,loadedProject);			List<String> possibleDirectories=loadedProject.getSourceDirList();			MainFrame.getInstance().setSourceFinder(new SourceFinder());			MainFrame.getInstance().getSourceFinder().setSourceBaseList(possibleDirectories);			return loadBugsHelper(col);		} catch (IOException e) {			JOptionPane.showMessageDialog(null,"This file contains no bug data");		} catch (DocumentException e) {			JOptionPane.showMessageDialog(null,"This file does not have the correct format; it may be corrupt.");		}		return null;	}