问从java属性文件加载ArrayList<String>

EN

public void loadConfigFromFile(String path) {
        Properties prop = new Properties();
        InputStream input = null;

        try {
            input = new FileInputStream(path);

            prop.load(input);

            /*saved like this:*/ //emails: abc@test.com, bbc@aab.com, ..
            String wordsS = prop.getProperty("keywords");
            String emailS = prop.getProperty("emails");
            String feedS = prop.getProperty("feeds");

            emails = Arrays.asList(emailS.split(",")); //ERROR !!
            words = Arrays.asList( wordsS.split(","))); //ERROR !!
            feeds = Arrays.asList( feedS.split(",")); //ERROR !!

        } catch (IOException ex) {
            ex.printStackTrace();
        } finally {
            if (input != null) {
                try {
                    input.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    private ArrayList<String> emails = new ArrayList<>(
            Arrays.asList("f00@b4r.com", "test@test.com")
    );

    private LinkedList<String> words = new LinkedList<>(
            Arrays.asList("vuln", "banana", "pizza", "bonanza")
    );

    private LinkedList<String> feeds = new LinkedList<>(
            Arrays.asList("http://www.kb.cert.org/vulfeed",
                    "https://ics-cert.us-cert.gov/advisories/advisories.xml")
    );