当运行在 IDE 之外时，HttpClient .send() 抛出 IOException

Question

我尝试通过 HttpClient 获取 Github 存储库的最新发布标签。
计划是向 github.com/user/repository/releases/latest 发送请求并获取重定向的 uri 以确定最新的发布标签。

当程序在我的 IDE 中运行ning 时，一切正常。但是由于某些原因，当程序被 jlinked + jpackaged 时抛出 IOException。
我已经尝试运行作为管理员来排除这种可能性。

我的代码：

  private static String latestVersionTag() {
        HttpClient client = HttpClient.newBuilder().followRedirects(HttpClient.Redirect.NORMAL).build();
        HttpRequest request = HttpRequest
                .newBuilder(URI.create("https://github.com/{placeholderUser}/{placeholderRepo}/releases/latest"))
                .timeout(Duration.ofSeconds(5))
                .build();

        try {
            HttpResponse<InputStream> response = client.send(request, HttpResponse.BodyHandlers.ofInputStream());
            String path = response.uri().getPath();
            return path.substring(path.lastIndexOf('/') + 1);
        } catch (IOException | InterruptedException e) {
            return null;
        }
    }

编辑：我运行jlinked图像没有打包得到堆栈跟踪（之前没想到，抱歉）

javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
        at java.net.http/jdk.internal.net.http.HttpClientImpl.send(HttpClientImpl.java:576)
        at java.net.http/jdk.internal.net.http.HttpClientFacade.send(HttpClientFacade.java:123)
        at launchofexile/com.github.cptblacksheep.launchofexile.UpdateChecker.latestVersionTag(UpdateChecker.java:76)
        at launchofexile/com.github.cptblacksheep.launchofexile.UpdateChecker.checkForNewVersion(UpdateChecker.java:35)
        at launchofexile/com.github.cptblacksheep.launchofexile.UpdateChecker.startupCheckForNewVersion(UpdateChecker.java:28)
        at launchofexile/com.github.cptblacksheep.launchofexile.LaunchOfExileMain.initialize(LaunchOfExileMain.java:285)
        at launchofexile/com.github.cptblacksheep.launchofexile.LaunchOfExileMain.main(LaunchOfExileMain.java:475)
Caused by: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
        at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:131)
        at java.base/sun.security.ssl.Alert.createSSLException(Alert.java:117)
        at java.base/sun.security.ssl.TransportContext.fatal(TransportContext.java:358)
        at java.base/sun.security.ssl.Alert$AlertConsumer.consume(Alert.java:293)
        at java.base/sun.security.ssl.TransportContext.dispatch(TransportContext.java:204)
        at java.base/sun.security.ssl.SSLTransport.decode(SSLTransport.java:172)
        at java.base/sun.security.ssl.SSLEngineImpl.decode(SSLEngineImpl.java:736)
        at java.base/sun.security.ssl.SSLEngineImpl.readRecord(SSLEngineImpl.java:691)
        at java.base/sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:506)
        at java.base/sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:482)
        at java.base/javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:679)
        at java.net.http/jdk.internal.net.http.common.SSLFlowDelegate$Reader.unwrapBuffer(SSLFlowDelegate.java:529)
        at java.net.http/jdk.internal.net.http.common.SSLFlowDelegate$Reader.processData(SSLFlowDelegate.java:433)
        at java.net.http/jdk.internal.net.http.common.SSLFlowDelegate$Reader$ReaderDownstreamPusher.run(SSLFlowDelegate.java:268)
        at java.net.http/jdk.internal.net.http.common.SequentialScheduler$LockingRestartableTask.run(SequentialScheduler.java:205)
        at java.net.http/jdk.internal.net.http.common.SequentialScheduler$CompleteRestartableTask.run(SequentialScheduler.java:149)
        at java.net.http/jdk.internal.net.http.common.SequentialScheduler$SchedulableTask.run(SequentialScheduler.java:230)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:833)

Answer 1

握手失败，因为您的自定义 run-time 图像缺少必要的加密模块。添加：

--add-modules jdk.crypto.cryptoki,jdk.crypto.ec

何时运行 jlink 应该可以解决问题。

我不确定您是否绝对需要两个模块，或者如果您不需要两个模块，则两者中哪一个是必需的。也有可能其中一个requires另一个，导致另一个被隐式拉入。

当 运行 在 IDE 之外时，HttpClient .send() 抛出 IOException

HttpClient .send() throws IOException when running outside the IDE

java

jlink

jpackage

当运行在 IDE 之外时，HttpClient .send() 抛出 IOException