同步线程未实现睡眠

我在一些API测试中遇到了竞争条件，我想在调用创建端点后检查是否存在用户。
我创建了一个类，用于检查是否返回了有效数据，如果没有返回，则最多可以在本地运行四次，但我注意到，当它在管道中运行时，它不会执行线程。睡眠命令。

创建类以绕过比赛条件文章源自玩技e族-https://www.playezu.com/179129.html

  public static Object commonExistenceQuery(Object endpoint) throws InterruptedException {
        int Counter = 0;
        Object ID = "";
        Object falseCheck = "false";
        synchronized (ID) {
            System.out.println("attempting to obtain Id for endpoint");
            ID = endpoint;
            while (ID == falseCheck) {
                Thread.sleep(1000);
                ID = endpoint;
                Counter++;
                System.out.println("Id not yet obtained, retrying attempt " + Counter + " of 4");
                if (Counter == 4|| ID != falseCheck) {
                    break;
                }
            }
            if (Counter == 4) {
                throw new ArithmeticException("ID was never obtained for endpoint, ensure successfully created");
            }
            else {
                System.out.println("successfully called endpoint and returned a valid ID of " + endpoint);
                return ID;
            }
        }
    }

查找用户的类（在ID=端点中调用）文章源自玩技e族-https://www.playezu.com/179129.html

    public Object findUser(Object name) throws IOException {
        JSONObject failure = new JSONObject();
        failure.put("check","false");
        Map request = new HashMap();
        Map body = new HashMap();
        body.put("name", name);
        body.put("business", "claims");
        body.put("unit", 10);
        request.put("body", body);
        request.put("callback", "true");
        Map findUser = run(userEndpoint.find, request,false);
        JSONObject jsonObject = new JSONObject(findUser);
        JSONObject getId = jsonObject.getJSONObject("data");
        if (getId == null){
            getId = failure;
            // we need to convert the null to a json object in the result of a failure, to avoid a null pointer exception
            System.out.println("failure to locate user ID, returning ID of "+getId.get("check"));
            return getId.get("check");
        }
        else
        {
            return getId.get("id");
        }
    }

你知道为什么要用线吗。sleep（1000）可能不起作用，或者欢迎改进代码的方法文章源自玩技e族-https://www.playezu.com/179129.html 文章源自玩技e族-https://www.playezu.com/179129.html