@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result
		+ ((accessToken == null) ? 0 : accessToken.hashCode());
		result = prime * result
		+ ((expireIn == null) ? 0 : expireIn.hashCode());
		result = prime * result
		+ ((refreshToken == null) ? 0 : refreshToken.hashCode());
		return result;
	}