Java 11 上的 SocketTimeout 但 Java 8 上没有

Question

当我的 Java 程序是运行且 Java 8 和 Java 11 时，我有一个非常奇怪的行为差异。

我正在使用 MSGraph API (1.7.0) 多次调用 Onedrive API。为了进行这些调用，我使用了 4 个并行线程来同步我硬盘上的大量文件（大约 1000 个）。

当我用 Java 8 执行程序时，没有出现异常。当我使用 java 11 执行它时，我在大约 60% 的调用中遇到套接字超时异常。

配置IGraphServiceClient，我使用的是默认配置。就我而言，本例中的 HTTP Provider 是 OKHttp3。

有没有人经历过这样的事情？

[UPDATE-1]

这些是我测试过的环境：

Oracle 的 JDK 1.8.0_192 --> 完美。大约 400 次调用没有错误
打开jdk 11.0.7 和 Oracle 的 jdk 11.0.3 --> 大量的 Sokcet 超时异常

特此你有堆栈跟踪：

com.microsoft.graph.core.ClientException: Error during http request
    at com.microsoft.graph.http.CoreHttpProvider.sendRequestInternal(CoreHttpProvider.java:422) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.CoreHttpProvider.send(CoreHttpProvider.java:204) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.CoreHttpProvider.send(CoreHttpProvider.java:184) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.BaseStreamRequest.send(BaseStreamRequest.java:85) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.requests.extensions.DriveItemStreamRequest.get(DriveItemStreamRequest.java:55) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.provider.onedrive.OnedriveServiceClient.download(OnedriveServiceClient.java:236) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.provider.onedrive.OnedriveFile.download(OnedriveFile.java:42) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.model.wrapper.RemoteFile.download(RemoteFile.java:20) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.syncing.task.LocalFileDownloadSyncTask.downloadIntoTemp(LocalFileDownloadSyncTask.java:71) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.syncing.task.LocalFileDownloadSyncTask.execute(LocalFileDownloadSyncTask.java:54) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.syncing.Syncer.lambda$taskRunner(Syncer.java:66) ~[easybox-0.1-SNAPSHOT.jar:?]
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
    at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
    at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: java.net.SocketTimeoutException: timeout
    at okhttp3.internal.http2.Http2Stream$StreamTimeout.newTimeoutException(Http2Stream.java:656) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http2.Http2Stream$StreamTimeout.exitAndThrowIfTimedOut(Http2Stream.java:664) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http2.Http2Stream.takeHeaders(Http2Stream.java:153) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http2.Http2Codec.readResponseHeaders(Http2Codec.java:131) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.java:88) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:45) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:126) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.TelemetryHandler.intercept(TelemetryHandler.java:35) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.RedirectHandler.intercept(RedirectHandler.java:123) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.RetryHandler.intercept(RetryHandler.java:140) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.AuthenticationHandler.intercept(AuthenticationHandler.java:31) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:254) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.RealCall.execute(RealCall.java:92) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.CoreHttpProvider.sendRequestInternal(CoreHttpProvider.java:356) ~[easybox-0.1-SNAPSHOT.jar:?]
    ... 15 more

和第二个堆栈跟踪

Caused by: java.net.SocketTimeoutException: timeout
    at okhttp3.internal.http2.Http2Stream$StreamTimeout.newTimeoutException(Http2Stream.java:656) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http2.Http2Stream$StreamTimeout.exitAndThrowIfTimedOut(Http2Stream.java:664) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http2.Http2Stream$FramingSource.read(Http2Stream.java:398) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http2.Http2Codec$StreamFinishingSource.read(Http2Codec.java:205) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okio.RealBufferedSource.read(RealBufferedSource.java:439) ~[easybox-0.1-SNAPSHOT.jar:?]
    at java.io.BufferedInputStream.fill(BufferedInputStream.java:252) ~[?:?]
    at java.io.BufferedInputStream.read1(BufferedInputStream.java:292) ~[?:?]
    at java.io.BufferedInputStream.read(BufferedInputStream.java:351) ~[?:?]
    at java.io.FilterInputStream.read(FilterInputStream.java:107) ~[?:?]
    at easybox.provider.onedrive.OnedriveServiceClient.download(OnedriveServiceClient.java:239) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.provider.onedrive.OnedriveFile.download(OnedriveFile.java:42) ~[easybox-0.1-SNAPSHOT.jar:?]
    ... 9 more

[UPDATE-2]

在覆盖 okhttp 对版本 3.14.9 和 4.7.2（最新可用）的依赖后，一切仍然相同，尽管有些地方发生了变化。除了通常的超时异常：

com.microsoft.graph.core.ClientException: Error during http request
    at com.microsoft.graph.http.CoreHttpProvider.sendRequestInternal(CoreHttpProvider.java:422) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.CoreHttpProvider.send(CoreHttpProvider.java:204) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.CoreHttpProvider.send(CoreHttpProvider.java:184) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.BaseStreamRequest.send(BaseStreamRequest.java:85) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.requests.extensions.DriveItemStreamRequest.get(DriveItemStreamRequest.java:55) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.provider.onedrive.OnedriveServiceClient.download(OnedriveServiceClient.java:236) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.provider.onedrive.OnedriveFile.download(OnedriveFile.java:42) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.model.wrapper.RemoteFile.download(RemoteFile.java:20) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.syncing.task.LocalFileDownloadSyncTask.downloadIntoTemp(LocalFileDownloadSyncTask.java:71) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.syncing.task.LocalFileDownloadSyncTask.execute(LocalFileDownloadSyncTask.java:54) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.syncing.Syncer.lambda$taskRunner(Syncer.java:66) ~[easybox-0.1-SNAPSHOT.jar:?]
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
    at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
    at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: java.net.SocketTimeoutException: timeout
    at okhttp3.internal.http2.Http2Stream$StreamTimeout.newTimeoutException(Http2Stream.kt:677) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http2.Http2Stream$StreamTimeout.exitAndThrowIfTimedOut(Http2Stream.kt:686) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http2.Http2Stream.takeHeaders(Http2Stream.kt:143) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http2.Http2ExchangeCodec.readResponseHeaders(Http2ExchangeCodec.kt:96) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.connection.Exchange.readResponseHeaders(Exchange.kt:106) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.kt:79) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:34) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:96) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:83) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:76) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.TelemetryHandler.intercept(TelemetryHandler.java:35) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.RedirectHandler.intercept(RedirectHandler.java:123) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.RetryHandler.intercept(RetryHandler.java:140) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.AuthenticationHandler.intercept(AuthenticationHandler.java:31) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.kt:197) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.connection.RealCall.execute(RealCall.kt:148) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.CoreHttpProvider.sendRequestInternal(CoreHttpProvider.java:356) ~[easybox-0.1-SNAPSHOT.jar:?]
    ... 15 more

不时出现新的：

com.microsoft.graph.core.ClientException: Error during http request
    at com.microsoft.graph.http.CoreHttpProvider.sendRequestInternal(CoreHttpProvider.java:422) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.CoreHttpProvider.send(CoreHttpProvider.java:204) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.CoreHttpProvider.send(CoreHttpProvider.java:184) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.BaseStreamRequest.send(BaseStreamRequest.java:85) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.requests.extensions.DriveItemStreamRequest.get(DriveItemStreamRequest.java:55) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.provider.onedrive.OnedriveServiceClient.download(OnedriveServiceClient.java:236) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.provider.onedrive.OnedriveFile.download(OnedriveFile.java:42) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.model.wrapper.RemoteFile.download(RemoteFile.java:20) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.syncing.task.LocalFileDownloadSyncTask.downloadIntoTemp(LocalFileDownloadSyncTask.java:71) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.syncing.task.LocalFileDownloadSyncTask.execute(LocalFileDownloadSyncTask.java:54) ~[easybox-0.1-SNAPSHOT.jar:?]
    at easybox.syncing.Syncer.lambda$taskRunner(Syncer.java:66) ~[easybox-0.1-SNAPSHOT.jar:?]
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
    at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
    at java.lang.Thread.run(Thread.java:834) [?:?]
Caused by: okhttp3.internal.http2.StreamResetException: stream was reset: CANCEL
    at okhttp3.internal.http2.Http2Stream.takeHeaders(Http2Stream.kt:148) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http2.Http2ExchangeCodec.readResponseHeaders(Http2ExchangeCodec.kt:96) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.connection.Exchange.readResponseHeaders(Exchange.kt:106) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.CallServerInterceptor.intercept(CallServerInterceptor.kt:79) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:34) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:96) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:83) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:76) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.TelemetryHandler.intercept(TelemetryHandler.java:35) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.RedirectHandler.intercept(RedirectHandler.java:123) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.RetryHandler.intercept(RetryHandler.java:140) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.httpcore.AuthenticationHandler.intercept(AuthenticationHandler.java:31) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:100) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.connection.RealCall.getResponseWithInterceptorChain$okhttp(RealCall.kt:197) ~[easybox-0.1-SNAPSHOT.jar:?]
    at okhttp3.internal.connection.RealCall.execute(RealCall.kt:148) ~[easybox-0.1-SNAPSHOT.jar:?]
    at com.microsoft.graph.http.CoreHttpProvider.sendRequestInternal(CoreHttpProvider.java:356) ~[easybox-0.1-SNAPSHOT.jar:?]
    ... 15 more

Answer 1

JDK9（或 JDK8 252+）上的 OkHttp，默认会协商 HTTP/2。很有可能与这次改动有关。

尝试在没有 HTTP/2 的情况下构建客户端，看看是否仍然遇到此问题。

  val client = OkHttpClient.Builder()
      .protocols(listOf(Protocol.HTTP_1_1))
      .build()

如果它修复了问题，则可能是服务器与 HTTP/2 不兼容，或者与连接重用有关，例如单个连接上的请求过多。

kekolab 更新 20201030。

Microsoft 通过将协议版本限制为 1.1 解决了这个问题，正如上面 OP Yuri 所建议的那样。好东西，代码中引用了这个线程：https://github.com/microsoftgraph/msgraph-sdk-java/pull/473/files#

Answer 2

您使用的 OKHttp 版本与 Java 11 不兼容（实际上是 Java 9 及更高版本）。

Microsoft Graph 1.7.1 has a dependency of Microsoft Graph Core 1.0.0, which has a dependency on OKHttp version 3.12.1.

根据Square's changelog for OKHttp, 3.12.x is a LTS version for Java 7+。这意味着它将期望某些 packages/modules 和 class 名称存在，这可能不在 Java 9 及更高版本之后（更多内容见下文）。

Version 3.14.8 introduced some fixes for Java 9 API changes that break OKHttp.

您应该在 POM 中手动指定此版本的 OKHttp，或包含此 Jar 以覆盖旧版本的隐式依赖项。

顺便说一句，这是将内容从 Java 8 移植到 Java 9 及更高版本时的常见问题。 Project Jigsaw 将臃肿的 JDK 的许多组件分解为模块。使 JDK 如此庞大的许多 "enterprise" 功能被分成了它们自己的模块，您必须指定将它们包含在您的项目中。 Java 8 天及更早版本的许多库都希望这些模块仍然存在 "out of the box"，这会导致像您所看到的那样的奇怪故障 - 但更常见的是臭名昭著的 NoClassDefFoundError.

Java 11 上的 SocketTimeout 但 Java 8 上没有

SocketTimeout on Java 11 but not on Java 8

java

java-8

okhttp

java-11