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java - 使用 GeckoDriver 和 Firefox 时无法联系：java.nio.channels.ClosedByInterruptException

问题描述

我正在使用：Selenium 3.11 Geckodriver v0.20.1 TestNG 6.9.8 Firefox 57 on Linux OS 运行测试

我有 10 间套房，每间有 10-30 节课。总时长约为 16 小时。Webdriver 在 beforeClass 中创建并在 afterClass 中退出（使用 driver.quit()）。

当我使用 Chrome 驱动程序运行测试时，一切正常，所有套件都已完全执行。

但是如果我将驱动程序切换到 Firefox 驱动程序，则只执行 3-4 或 5 个套件，然后我收到以下错误：

Cannot contact : java.nio.channels.ClosedByInterruptException
Can't take a screenshot: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:14191

它出现在不同的步骤和操作中，测试只是定期进行，然后出现此错误：

2018-05-30 18:52:12.545 -         NavigationTree.executeNavigationCommand:87 [[treePasteItem]]
2018-05-30 18:52:15.018 -         Toastr.waitToastIsNotShown:51 
2018-05-30 18:52:17.130 -         NavigationTree.getRootNode:131 
Cannot contact : java.nio.channels.ClosedByInterruptException
Can't take a screenshot: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:14191
Build info: version: '3.11.0', revision: 'e59cfb3', time: '2018-03-11T20:26:55.152Z'
System info: host: 'ip-172-31-34-46.ec2.internal', ip: '172.31.34.46', os.name: 'Linux', os.arch: 'amd64', os.version: '3.10.0-514.el7.x86_64', java.version: '1.8.0_45'
Driver info: driver.version: RemoteWebDriver
2018-05-30 18:53:16.441 -       FAILED: RenameDeleteJobs_14
2018-05-30 18:53:16.441 - [LAST MESSAGE RECEIVED FROM THE TEST]
org.openqa.selenium.WebDriverException: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:14191
Build info: version: '3.11.0', revision: 'e59cfb3', time: '2018-03-11T20:26:55.152Z'
System info: host: 'ip-172-31-34-46.ec2.internal', ip: '172.31.34.46', os.name: 'Linux', os.arch: 'amd64', os.version: '3.10.0-514.el7.x86_64', java.version: '1.8.0_45'
Driver info: driver.version: RemoteWebDriver
    at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:92)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:545)
    at org.openqa.selenium.remote.RemoteWebDriver.perform(RemoteWebDriver.java:611)
    at org.openqa.selenium.interactions.Actions$BuiltAction.perform(Actions.java:638)
    at org.openqa.selenium.interactions.Actions.perform(Actions.java:594)
    at org.openqa.selenium.interactions.Actions$perform$0.call(Unknown Source)
    at exa.tags.framework.utils.Helper.moveFocusToElement(Helper.groovy:290)
    at exa.tags.framework.utils.Helper$moveFocusToElement$13.callStatic(Unknown Source)
    at exa.tags.framework.utils.Helper.moveFocusToElement(Helper.groovy:298)
    at exa.tags.framework.utils.Helper$moveFocusToElement$12.call(Unknown Source)
    at exa.tags.framework.pages.navigation.NavigationTree.getNodeByName(NavigationTree.groovy:185)
    at exa.tags.framework.pages.navigation.NavigationTree$getNodeByName$4.callStatic(Unknown Source)
    at exa.tags.framework.pages.navigation.NavigationTree.getNodeByPath(NavigationTree.groovy:204)
    at exa.tags.framework.pages.navigation.NavigationTree$getNodeByPath$9.callStatic(Unknown Source)
    at exa.tags.framework.pages.navigation.NavigationTree.getNodeByPath(NavigationTree.groovy:223)
    at exa.tags.framework.pages.navigation.NavigationTree.selectNodeByPath(NavigationTree.groovy:232)
    at sun.reflect.GeneratedMethodAccessor91.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrap.invoke(PogoMetaMethodSite.java:190)
    at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.call(PogoMetaMethodSite.java:71)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
    at exa.tags.suites.jobs.RenameDeleteJobsTest.RenameDeleteJobs_14(RenameDeleteJobsTest.groovy:756)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
    at org.testng.internal.Invoker.invokeMethod(Invoker.java:639)
    at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:816)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1124)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
    at org.testng.TestRunner.privateRun(TestRunner.java:774)
    at org.testng.TestRunner.run(TestRunner.java:624)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:359)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:354)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:312)
    at org.testng.SuiteRunner.run(SuiteRunner.java:261)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1191)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1116)
    at org.testng.TestNG.run(TestNG.java:1024)
    at org.testng.TestNG$run$1.call(Unknown Source)
    at exa.tags.runner.TestManager$_runTests_closure1$_closure4.doCall(TestManager.groovy:110)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
    at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1019)
    at groovy.lang.Closure.call(Closure.java:426)
    at groovy.lang.Closure.call(Closure.java:442)
    at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2030)
    at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2015)
    at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2056)
    at org.codehaus.groovy.runtime.dgm$162.invoke(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoMetaMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:274)
    at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:56)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
    at exa.tags.runner.TestManager$_runTests_closure1.doCall(TestManager.groovy:72)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
    at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
    at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:294)
    at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1019)
    at groovy.lang.Closure.call(Closure.java:426)
    at groovy.lang.Closure.call(Closure.java:442)
    at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2030)
    at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2015)
    at org.codehaus.groovy.runtime.DefaultGroovyMethods.each(DefaultGroovyMethods.java:2056)
    at org.codehaus.groovy.runtime.dgm$162.invoke(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite$PojoMetaMethodSiteNoUnwrapNoCoerce.invoke(PojoMetaMethodSite.java:274)
    at org.codehaus.groovy.runtime.callsite.PojoMetaMethodSite.call(PojoMetaMethodSite.java:56)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
    at exa.tags.runner.TestManager.runTests(TestManager.groovy:54)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:93)
    at org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite$StaticMetaMethodSiteNoUnwrapNoCoerce.invoke(StaticMetaMethodSite.java:151)
    at org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite.callStatic(StaticMetaMethodSite.java:102)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallStatic(CallSiteArray.java:56)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:194)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:206)
    at exa.tags.runner.TestManager.main(TestManager.groovy:38)
Caused by: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:14191
    at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:240)
    at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:158)
    at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:256)
    at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:134)
    at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:113)
    at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
    at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
    at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
    at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:125)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121)
    at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200)
    at okhttp3.RealCall.execute(RealCall.java:77)
    at org.openqa.selenium.remote.internal.OkHttpClient.execute(OkHttpClient.java:101)
    at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:155)
    at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
    ... 96 more
Caused by: java.net.ConnectException: Connection refused
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:345)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at okhttp3.internal.platform.Platform.connectSocket(Platform.java:125)
    at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:238)
    ... 116 more

我添加了内存信息输出，但似乎仍有足够的资源供 JVM 使用：

OS: Linux
    Version: 3.10.0-514.el7.x86_64 amd64
    Available processors (cores): 8
    Current directory: /var/lib/jenkins/jobs/ExaCLOUD_UI_tests_pipeline/branches/feature-E.6pdikdaolhhr.IE-Chrome/workspace/ExaTAGS/TagsRunner

    Currently allocated to the JVM: 2,249.5 Mb
    Free memory in JVM: 1,257.568 Mb
    Used memory in JVM: 991.932 Mb
    Max memory the JVM could reach: 3,250 Mb
    Total free memory: 2,258.068 Mb

    File system root: / 
    Total space: 102387.98046875 Mb
    Free space:30855.1953125 Mb
    Usable space: 30855.1953125 Mb

我的问题是：在哪里寻找以及在调试信息中添加什么来调查发生这种情况的原因？

标签： javaseleniumfirefoxselenium-webdrivergeckodriver

解决方案

此错误消息...

Cannot contact : java.nio.channels.ClosedByInterruptException
Can't take a screenshot: java.net.ConnectException: Failed to connect to localhost/0:0:0:0:0:0:0:1:14191

...意味着当另一个线程在通道上的 I/O 操作中被阻塞时中断它时，一个线程收到了已检查的异常。

ClosedByInterruptException 类

ClosedByInterruptException是一个检查异常，当一个线程在通道上的 I/O 操作中忙/阻塞时中断另一个线程时引发。在引发此异常之前，通道必须已关闭。

值得一提的是，通道操作几乎与执行 I/O 操作的线程绑定在一起。如果此线程因 IO 安全问题而中断流或通道关闭。

您的代码试验会给我们一些关于出了什么问题的更多提示，但是从错误堆栈跟踪中可以明显看出，主要问题之一是您使用的二进制文件版本之间的不兼容，如下所示：

  • 虽然您使用的是Selenium v​​3.11.0，但您的JDK似乎是相当旧的v1.8.0_45 。

解决方案

  • 将JDK升级到最新级别JDK 8u171。
  • 将Selenium升级到当前级别Version 3.12.0。
  • 将GeckoDriver升级到GeckoDriver v0.20.1级别。
  • 确保 GeckoDriver 存在于指定位置。
  • GeckoDriver 对非 root 用户具有可执行权限。
  • 将Firefox版本升级到Firefox v60.0.1级别。
  • 通过IDE清理项目工作区并仅使用所需的依赖项重建项目。
  • 使用CCleaner工具在执行测试套件之前和之后清除所有操作系统杂务。
  • 如果您的基本Web Client版本太旧，请通过Revo Uninstaller卸载它并安装最新的 GA 和已发布版本的Web Client。
  • 重新启动系统。
  • Test以非 root 用户身份执行。
  • 始终driver.quit()在tearDown(){}方法内调用以优雅地关闭和销毁WebDriver和Web 客户端实例。

琐事

如果AUT（被测应用程序）是一个多线程应用程序，您应该寻找interrupt()可能会中断在通道上执行 IO 操作的线程的调用。如果它是 Web 应用程序或其他类型的托管环境，其中线程管理不取决于您的应用程序（如 Servlet / EJB 容器），您应该寻找线程安全违规。另一个需要注意的地方是应用程序关闭或使用线程池时（Servlet/EJB 容器！）。然后注意池大小的动态管理！

参考

您将在为什么我们在 Java 1.6 中从 FileChannel.map 获得 ClosedByInterruptException中找到详细讨论？

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