private String loadDefaultValue(String key){
		
		Properties props = new Properties();
		String value = "";
		
	     try {
	            String fileName = INTERNAL_FILE_PATH;            
	            InputStream stream = GlobusRESTAuthenticator.class.getResourceAsStream(fileName);

	            props.load(stream);

	            value = props.getProperty(key, "missing");
	        } catch (FileNotFoundException e) {
	        	logger.error("authenticator.config not found.");
	            e.printStackTrace();
	        } catch (IOException e) {
	            e.printStackTrace();
	        }
	     return value;
	}