if(bundle == null) { return null; }
	private URL getPreviewImageURL( String reportFileName, String key )	{		URL url = null;		Bundle bundle = Platform.getBundle( IResourceLocator.FRAGMENT_RESOURCE_HOST );		url = bundle.getResource( key );		if ( url == null )		{			String path = ReportPlugin.getDefault( ).getResourceFolder( );			File file = new File( path, key );			if ( file.exists( ) && file.isFile( ) )			{				try				{					url = file.toURL( );				}				catch ( MalformedURLException e )				{					e.printStackTrace( );				}			}		}		return url;	}