有人在ios下测试osc的openapi的oauth2登录吗?报错

通过http://github.com/nxtbgthng/OAuth2Client进行oauth2登录测试，执行/action/openapi/token获取access_token报错：

Error: {"error":"500","error_description":"java.lang.String cannot be cast to [Ljava.lang.String;"}

暂时通过safria浏览器登录授权，再返回处理的，parameters参数如下：

    "client_id" = kCo4cf9mL4dE8ZhDv8GC;
    "client_secret" = gkdPurdXB8HNbqGge2vC8fdD2V1vCjdm;
    code = vKAFTt;
    "grant_type" = "authorization_code";
    "redirect_uri" = "jimneylee://oschina.com";