public static String getRootClassPath() {
		if (rootClassPath == null) {
			try {
				String path = PathKit.class.getResource("/").toURI().getPath();
				return new File(path).getCanonicalPath();
			} catch (URISyntaxException e) {
				e.printStackTrace();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return rootClassPath;
	}