src/main/java/com/w3asel/cubesensors/util/PrefAuthPersistence.java
@Override
	public Token getToken() {
		String token = get(ACCESS_TOKEN_TOKEN_PREF);
		String secret = get(ACCESS_TOKEN_SECRET_PREF);
		return token != null ? new Token(token, secret) : null;
	}
@Override
	public Token getToken() {
		String token = get(ACCESS_TOKEN_TOKEN_PREF);
		String secret = get(ACCESS_TOKEN_SECRET_PREF);
		return token != null ? new Token(token, secret) : null;
	}
Get the persisted token using java preferences.