60秒内无法检索到无人机实例。

Question

我正在学习Java EE 7，使用一本名为Workshop Java EE 7的德语书籍，该书基本上手把手教你构建一个运行样例应用程序。在书的第二个“迭代”中，定义了集成测试(GitHub branch)。然而，我无法让它们运行起来。当我启动WildFly并执行mvn verify时，Firefox会弹出“没有可用窗口”，60秒后，它会崩溃，并显示一长串错误(见下文)。我已经搜索了所有的错误信息，尽管各种平台(包括StackOverflow)上讨论了许多类似的问题，但我找到的答案都没有解决我的问题。由于作者将整个项目都放在了网上，所以我可以指向代码的相关部分:

• pom.xml
• arquillian.xml
• AbstractITCase.java
• DonateMoneyITCase.java

我希望您能帮助我解决这个问题，特别是因为我相信它也与书籍的许多其他读者相关，该书是亚马逊德国畅销的Java EE图书之一。非常感谢您的提前帮助！

我正在使用macOS 10.12、Java 8、WildFly 8.1.0和Firefox 57。

以下是错误消息的缩短控制台输出：

org.jboss.arquillian.graphene.enricher.exception.PageObjectInitializationException: Can not instantiate Page Object
Caused by: java.lang.RuntimeException: Unable to retrieve Drone Instance within 60 seconds
Caused by: java.util.concurrent.TimeoutException: null
de.dpunkt.myaktion.test.DonateMoneyITCase  Time elapsed: 60.247 sec  <<< ERROR!
java.lang.IllegalStateException: Unexpected callable present in Drone Context, should be already instantiated at this moment.

以下是完整的错误消息控制台输出：

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running de.dpunkt.myaktion.test.DonateMoneyITCase
Jan 01, 2018 10:29:47 PM org.jboss.arquillian.drone.webdriver.factory.remote.reusable.ReusedSessionPermanentFileStorage readStore
Jan 01, 2018 10:29:47 PM org.xnio.Xnio <clinit>
INFO: XNIO version 3.2.0.Beta4
Jan 01, 2018 10:29:47 PM org.xnio.nio.NioXnio <clinit>
INFO: XNIO NIO Implementation Version 3.2.0.Beta4
Jan 01, 2018 10:29:47 PM org.jboss.remoting3.EndpointImpl <clinit>
INFO: JBoss Remoting version (unknown)
Tests run: 2, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 76.412 sec <<< FAILURE! - in de.dpunkt.myaktion.test.DonateMoneyITCase
testDonateMoney(de.dpunkt.myaktion.test.DonateMoneyITCase)  Time elapsed: 60.225 sec  <<< ERROR!
org.jboss.arquillian.graphene.enricher.exception.PageObjectInitializationException: Can not instantiate Page Object 
class de.dpunkt.myaktion.test.pages.DonateMoneyPage
 declared in: 
de.dpunkt.myaktion.test.DonateMoneyITCase

        at org.jboss.arquillian.graphene.enricher.PageObjectEnricher.enrich(PageObjectEnricher.java:88)
        at org.jboss.arquillian.graphene.enricher.GrapheneEnricher.enrich(GrapheneEnricher.java:51)
        at org.jboss.arquillian.test.impl.TestInstanceEnricher.enrich(TestInstanceEnricher.java:52)
        at org.jboss.arquillian.container.test.impl.ClientTestInstanceEnricher.enrich(ClientTestInstanceEnricher.java:51)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
        at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createContext(ContainerEventController.java:142)
        at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createBeforeContext(ContainerEventController.java:124)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.test.impl.TestContextHandler.createClassContext(TestContextHandler.java:84)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.test.impl.TestContextHandler.createSuiteContext(TestContextHandler.java:65)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.test.impl.TestContextHandler.createTestContext(TestContextHandler.java:102)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:135)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:115)
        at org.jboss.arquillian.test.impl.EventTestRunnerAdaptor.before(EventTestRunnerAdaptor.java:95)
        at org.jboss.arquillian.junit.Arquillian$4.evaluate(Arquillian.java:222)
        at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:314)
        at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:46)
        at org.jboss.arquillian.junit.Arquillian$5.evaluate(Arquillian.java:240)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
        at org.jboss.arquillian.junit.Arquillian$2.evaluate(Arquillian.java:185)
        at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:314)
        at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:46)
        at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:199)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
        at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:147)
        at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
        at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
Caused by: java.lang.RuntimeException: Unable to retrieve Drone Instance within 60 seconds
        at org.jboss.arquillian.drone.impl.DroneInstanceCreator.createDroneInstance(DroneInstanceCreator.java:98)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:135)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:115)
        at org.jboss.arquillian.core.impl.EventImpl.fire(EventImpl.java:67)
        at org.jboss.arquillian.drone.impl.DroneTestEnricher.getDroneInstance(DroneTestEnricher.java:114)
        at org.jboss.arquillian.drone.impl.DroneTestEnricher.enrich(DroneTestEnricher.java:75)
        at org.jboss.arquillian.graphene.enricher.AbstractSearchContextEnricher.enrichRecursively(AbstractSearchContextEnricher.java:70)
        at org.jboss.arquillian.graphene.enricher.PageObjectEnricher.setupPage(PageObjectEnricher.java:97)
        at org.jboss.arquillian.graphene.enricher.PageObjectEnricher.enrich(PageObjectEnricher.java:75)
        at org.jboss.arquillian.graphene.enricher.GrapheneEnricher.enrich(GrapheneEnricher.java:51)
        at org.jboss.arquillian.test.impl.TestInstanceEnricher.enrich(TestInstanceEnricher.java:52)
        at org.jboss.arquillian.container.test.impl.ClientTestInstanceEnricher.enrich(ClientTestInstanceEnricher.java:51)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
        at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createContext(ContainerEventController.java:142)
        at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createBeforeContext(ContainerEventController.java:124)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.test.impl.TestContextHandler.createClassContext(TestContextHandler.java:84)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.test.impl.TestContextHandler.createSuiteContext(TestContextHandler.java:65)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.test.impl.TestContextHandler.createTestContext(TestContextHandler.java:102)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:135)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:115)
        at org.jboss.arquillian.test.impl.EventTestRunnerAdaptor.before(EventTestRunnerAdaptor.java:95)
        at org.jboss.arquillian.junit.Arquillian$4.evaluate(Arquillian.java:222)
        at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:314)
        at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:46)
        at org.jboss.arquillian.junit.Arquillian$5.evaluate(Arquillian.java:240)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
        at org.jboss.arquillian.junit.Arquillian$2.evaluate(Arquillian.java:185)
        at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:314)
        at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:46)
        at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:199)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
        at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:147)
        at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
        at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
Caused by: java.util.concurrent.TimeoutException: null
        at java.util.concurrent.FutureTask.get(FutureTask.java:205)
        at org.jboss.arquillian.drone.impl.DroneInstanceCreator.createDroneInstance(DroneInstanceCreator.java:84)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:135)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:115)
        at org.jboss.arquillian.core.impl.EventImpl.fire(EventImpl.java:67)
        at org.jboss.arquillian.drone.impl.DroneTestEnricher.getDroneInstance(DroneTestEnricher.java:114)
        at org.jboss.arquillian.drone.impl.DroneTestEnricher.enrich(DroneTestEnricher.java:75)
        at org.jboss.arquillian.graphene.enricher.AbstractSearchContextEnricher.enrichRecursively(AbstractSearchContextEnricher.java:70)
        at org.jboss.arquillian.graphene.enricher.PageObjectEnricher.setupPage(PageObjectEnricher.java:97)
        at org.jboss.arquillian.graphene.enricher.PageObjectEnricher.enrich(PageObjectEnricher.java:75)
        at org.jboss.arquillian.graphene.enricher.GrapheneEnricher.enrich(GrapheneEnricher.java:51)
        at org.jboss.arquillian.test.impl.TestInstanceEnricher.enrich(TestInstanceEnricher.java:52)
        at org.jboss.arquillian.container.test.impl.ClientTestInstanceEnricher.enrich(ClientTestInstanceEnricher.java:51)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
        at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createContext(ContainerEventController.java:142)
        at org.jboss.arquillian.container.test.impl.client.ContainerEventController.createBeforeContext(ContainerEventController.java:124)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.test.impl.TestContextHandler.createClassContext(TestContextHandler.java:84)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.test.impl.TestContextHandler.createSuiteContext(TestContextHandler.java:65)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.test.impl.TestContextHandler.createTestContext(TestContextHandler.java:102)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:135)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:115)
        at org.jboss.arquillian.test.impl.EventTestRunnerAdaptor.before(EventTestRunnerAdaptor.java:95)
        at org.jboss.arquillian.junit.Arquillian$4.evaluate(Arquillian.java:222)
        at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:314)
        at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:46)
        at org.jboss.arquillian.junit.Arquillian$5.evaluate(Arquillian.java:240)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
        at org.jboss.arquillian.junit.Arquillian$2.evaluate(Arquillian.java:185)
        at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:314)
        at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:46)
        at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:199)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
        at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:147)
        at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
        at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)

de.dpunkt.myaktion.test.DonateMoneyITCase  Time elapsed: 60.247 sec  <<< ERROR!
java.lang.IllegalStateException: Unexpected callable present in Drone Context, should be already instantiated at this moment.
        at org.jboss.arquillian.drone.impl.InstanceOrCallableInstanceImpl.asInstance(InstanceOrCallableInstanceImpl.java:57)
        at org.jboss.arquillian.drone.impl.DroneEnhancer.deenhanceDrone(DroneEnhancer.java:119)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:135)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:115)
        at org.jboss.arquillian.core.impl.EventImpl.fire(EventImpl.java:67)
        at org.jboss.arquillian.drone.impl.DroneDestructor.destroyClassScopedDrone(DroneDestructor.java:93)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:99)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:81)
        at org.jboss.arquillian.test.impl.TestContextHandler.createClassContext(TestContextHandler.java:84)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.test.impl.TestContextHandler.createSuiteContext(TestContextHandler.java:65)
        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:498)
        at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:94)
        at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:88)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:135)
        at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:115)
        at org.jboss.arquillian.test.impl.EventTestRunnerAdaptor.afterClass(EventTestRunnerAdaptor.java:87)
        at org.jboss.arquillian.junit.Arquillian$3$1.evaluate(Arquillian.java:204)
        at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:314)
        at org.jboss.arquillian.junit.Arquillian.access$100(Arquillian.java:46)
        at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:199)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
        at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:147)
        at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
        at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)

<some other test cases left out for brevity>

- typeduke

---

问题表明浏览器没有响应。我在 arquillian.xml 中看到 webdriver 被设置为 firefox。尝试使用 htmlunit 或 phantomjs，它们都是集成的无头浏览器。如果这样可以解决问题，那么问题不在 Arquillian 方面。 - BalusC

谢谢，@BakusC。我之前尝试过使用“phantomjs”和“safari”，但都遇到了相似的错误信息。今晚回家后，我会把它们也贴出来。你有尝试运行这个项目吗？在你的电脑上可以正常工作吗？ - typeduke

我还没有尝试过你的项目。我只是Arquillian+Graphene的长期用户（在https://github.com/omnifaces/omnifaces和https://github.com/omnifaces/optimusfaces等地方使用）。 - BalusC

你可以在pom.xml中尝试以下配置吗？<plugin> <artifactId>maven-failsafe-plugin</artifactId> <version>${version.failsafe.plugin}</version> <configuration> <forkCount>1</forkCount> <reuseForks>true</reuseForks> </configuration> </plugin> - Prateek Jain

Answer 1

我尝试运行mvn verify，但在我的计算机上失败了，很可能是因为我的计算机上的Firefox版本对于Selenium驱动程序来说太新了。

@Rene在他的答案中通过替换适当的Firefox版本来解决这个问题，我决定升级Arquillian组件。所以这是修复后的代码:

1. 更改以使事情能够在Firefox 57下运行。

2. 包含更改的test分支在我的fork中。

- Tair

Answer 2

启动当前（或不受支持的？）版本的Firefox可能需要太长时间。至少在Linux下尝试原样运行该项目时是这样的（我手头没有Mac）。通过添加增加超时时间。

<extension qualifier="drone">
    <property name="instantiationTimeoutInSeconds">120</property>
</extension>

将arquillian.xml文件中的设置更改后，使用Firefox 57在我的设备上成功解决了TimeoutException。

不幸的是，测试现在出现org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host 127.0.0.1 on port 7057 after 45000 ms.错误。Firefox没有加载任何网页。变更日志显示，Selenium 2.39支持的最新Firefox版本似乎是26.0。

使用此版本（通过在webdriver配置中使用<property name="firefox_binary">/path/to/firefox-26.0/firefox</property>）会导致org.openqa.selenium.NoSuchElementException: Unable to locate element: {"method":"xpath","selector":"//button/span[text()='Aktion hinzufügen']"}，但这次显示了一个应用程序（以英语显示，因为这是我的操作系统设置）。将AbstractPage#getString更改为使用英文资源包最终使测试变绿。因此，也许不要以本地化的按钮标签为基础选择器...

有趣的是，在这里使用phantomjs就可以正常工作（但这次仅使用德语ResourceBundle）。

环境：

• Ubuntu 17.10 x86_64
• Firefox 57（最初）和26
• Maven 3.5.0
• OpenJDK 1.8.0_151（Ubuntu repo）
• WildFly 8.1.0

- René