Java Jetty http/2客户端挂起获取url

我有一个代码，实际上是从以下地方复制的：

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出于某种原因，它无限期地等待响应。有什么问题吗？我正在寻找一个http/2客户端用于访问https url的工作示例。谢谢

您可能没有配置ALPN

请参阅为运行客户端代码的JVM启用ALPN。我选择了与jdk版本jdk 1.8.0_92相关的ALPN boon版本->ALPN boot 8.1.8.v20160420。然后将-Xbootclasspath/p:/Users/user/../alpn-boot-8.1.8.v20160420.jar添加到vm选项中。这对我来说还是有点棘手，但它确实有效。非常感谢。

HTTP2Client http2Client = new HTTP2Client();
SslContextFactory sslContextFactory = new SslContextFactory();
HttpClient httpClient = new HttpClient(new HttpClientTransportOverHTTP2(http2Client), sslContextFactory);
Executor executor = new QueuedThreadPool();
httpClient.setExecutor(executor);
httpClient.start();

ContentResponse response = httpClient.GET("https://www.google.com/");