private void readShadowToCache() {
		File shadow = new File(folder.toString() + "/" + "shadow");
		try (BufferedReader reader = new BufferedReader(new FileReader(shadow))) {
			String line;
			while ((line = reader.readLine()) != null) {
				String[] splitLine = line.split(":");
				shadowCache.put(splitLine[0], splitLine[1]);
			}
		
		} catch (FileNotFoundException ex) {
		} catch (IOException ex) {} 
	}