ArrayStoreException使用apache发布帖子

Question

实际上，客户端驻留在tomcat 8080中，REST驻留在9090中。当URL移动到更高的环境时，URL将是不同的。我没有看到使用httpasyncclient调用REST。我从Apache网站https://hc.apache.org/httpcomponents-asyncclient-dev/examples.html复制了代码。

不确定，如何使呼叫成功，即使我收到异常响应。

CloseableHttpAsyncClient client = HttpAsyncClients.createDefault();
    try {
        client.start();
        JsonObject obj = new JsonObject();
        obj.addProperty("username", "username");
        obj.addProperty("password", "password");



        String serverURL = "http://localhost:9090/project/api";

        HttpPost postRequest = new HttpPost(serverURL);
        StringEntity params = new StringEntity(obj.toString(), "UTF-8");
        params.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "x-www-form-urlencoded"));
        postRequest.setEntity(params);

        Future<HttpResponse> future = client.execute(postRequest, null);
        HttpResponse response = future.get();


    } catch (IllegalArgumentException e) {
        e.printStackTrace();
    } catch (InterruptedException e) {
        e.printStackTrace();
    } catch (ExecutionException e) {
        e.printStackTrace();
    } finally {
        try {
            client.close();
        } catch (IOException e) {
            e.printStackTrace();
        }


    }    

我没有找到任何有用的信息来解决这个问题。任何帮助都会使我的一天

Caused by: java.lang.ArrayStoreException: org.apache.http.impl.cookie.RFC2965VersionAttributeHandler
    at org.apache.http.impl.cookie.DefaultCookieSpecProvider.create(DefaultCookieSpecProvider.java:93)
    at org.apache.http.client.protocol.RequestAddCookies.process(RequestAddCookies.java:152)
    at org.apache.http.protocol.ImmutableHttpProcessor.process(ImmutableHttpProcessor.java:133)
    at org.apache.http.impl.nio.client.MainClientExec.prepareRequest(MainClientExec.java:520)
    at org.apache.http.impl.nio.client.MainClientExec.prepare(MainClientExec.java:146)
    at org.apache.http.impl.nio.client.DefaultClientExchangeHandlerImpl.start(DefaultClientExchangeHandlerImpl.java:124)
    at org.apache.http.impl.nio.client.InternalHttpAsyncClient.execute(InternalHttpAsyncClient.java:141)
    at org.apache.http.impl.nio.client.CloseableHttpAsyncClient.execute(CloseableHttpAsyncClient.java:74)
    at org.apache.http.impl.nio.client.CloseableHttpAsyncClient.execute(CloseableHttpAsyncClient.java:107)
    at org.apache.http.impl.nio.client.CloseableHttpAsyncClient.execute(CloseableHttpAsyncClient.java:91)

javadocs说

在试图检索通过抛出异常而中止的任务的结果时引发的“打开声明”java.util.concurrent.ExecutionException异常。可以使用getCause()方法检查此异常。

Answer 1

最可能的原因-- httpclient版本中的冲突。F.e.项目依赖项包括httpclient和httpasyncclient。httpasyncclient对另一个版本的httpclient具有传递依赖关系。因此，项目依赖有两个不兼容的httpclient版本。下面描述了其中一个有详细解释的案例：https://stackoverflow.com/a/49898063/4651234