Properties props = new Properties();
    InputStream inputStream = null;
    try{
        inputStream = getBaseContext().getAssets().open("userInfo.properties");
        props.load(inputStream);

        props.put("name", "smith");
        FileOutputStream output = new FileOutputStream("userInfo.properties"); //this line throws error
        props.store(output, "This is overwrite file");

        String name = props.getProperty("name");
        Log.d(TAG, "onCreate: PROPERTIES TEST NAME CHANGE: " + name);

    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            inputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }