我正在尝试通过WildFly和Maven学习Java EE。我正在尝试按照教程进行操作，但是我在测试中处于困局。不幸的是，本教程跳了一些，所以我没有得到所有的信息。每次运行测试时，都会出现跟随错误。有人可以解释这个错误是什么以及我该如何解决？
Running com.pluralsight.bookstore.repository.BookRepositoryTest
Aug 04, 2018 11:09:45 AM org.jboss.arquillian.core.impl.ObserverImpl resolveArguments
WARNING: Argument 2 for ArquillianServiceDeployer.doServiceDeploy is null. It won't be invoked.
Aug 04, 2018 11:09:45 AM org.xnio.Xnio <clinit>
INFO: XNIO version 3.3.4.Final
Aug 04, 2018 11:09:45 AM org.xnio.nio.NioXnio <clinit>
INFO: XNIO NIO Implementation Version 3.3.4.Final
Aug 04, 2018 11:09:45 AM org.jboss.remoting3.EndpointImpl <clinit>
INFO: JBoss Remoting version 4.0.18.Final
Aug 04, 2018 11:09:48 AM org.jboss.as.arquillian.container.ArchiveDeployer undeploy
WARN: Cannot undeploy: test.war
org.jboss.as.controller.client.helpers.standalone.ServerDeploymentHelper$ServerDeploymentException: java.lang.RuntimeException: java.net.ConnectException: WFLYPRT0053: C
ould not connect to http-remoting://127.0.0.1:9990. The connection failed
at org.jboss.as.controller.client.helpers.standalone.ServerDeploymentHelper.undeploy(ServerDeploymentHelper.java:109)
at org.jboss.as.arquillian.container.ArchiveDeployer.undeploy(ArchiveDeployer.java:111)
at org.jboss.as.arquillian.container.CommonDeployableContainer.undeploy(CommonDeployableContainer.java:242)
at org.jboss.arquillian.container.impl.client.container.ContainerDeployController$4.call(ContainerDeployController.java:205)
at org.jboss.arquillian.container.impl.client.container.ContainerDeployController$4.call(ContainerDeployController.java:185)
at org.jboss.arquillian.container.impl.client.container.ContainerDeployController.executeOperation(ContainerDeployController.java:271)
at org.jboss.arquillian.container.impl.client.container.ContainerDeployController.undeploy(ContainerDeployController.java:184)
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:96)
at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:103)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:85)
at org.jboss.arquillian.container.impl.client.ContainerDeploymentContextHandler.createDeploymentContext(ContainerDeploymentContextHandler.java:78)
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:96)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
at org.jboss.arquillian.container.impl.client.ContainerDeploymentContextHandler.createContainerContext(ContainerDeploymentContextHandler.java:57)
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:96)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:143)
at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:114)
at org.jboss.arquillian.core.impl.EventImpl.fire(EventImpl.java:67)
at org.jboss.arquillian.container.impl.client.container.ContainerDeployController$2.perform(ContainerDeployController.java:119)
at org.jboss.arquillian.container.impl.client.container.ContainerDeployController$2.perform(ContainerDeployController.java:110)
at org.jboss.arquillian.container.impl.client.container.ContainerDeployController.forEachDeployment(ContainerDeployController.java:263)
at org.jboss.arquillian.container.impl.client.container.ContainerDeployController.forEachDeployedDeployment(ContainerDeployController.java:249)
at org.jboss.arquillian.container.impl.client.container.ContainerDeployController.undeployManaged(ContainerDeployController.java:109)
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:96)
at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:103)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:85)
at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:143)
at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:114)
at org.jboss.arquillian.core.impl.EventImpl.fire(EventImpl.java:67)
at org.jboss.arquillian.container.test.impl.client.ContainerEventController.execute(ContainerEventController.java:108)
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:96)
at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:103)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:85)
at org.jboss.arquillian.test.impl.TestContextHandler.createClassContext(TestContextHandler.java:92)
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:96)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
at org.jboss.arquillian.test.impl.TestContextHandler.createSuiteContext(TestContextHandler.java:73)
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:96)
at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:92)
at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:143)
at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:114)
at org.jboss.arquillian.test.impl.EventTestRunnerAdaptor.afterClass(EventTestRunnerAdaptor.java:94)
at org.jboss.arquillian.junit.Arquillian$3$1.evaluate(Arquillian.java:224)
at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:431)
at org.jboss.arquillian.junit.Arquillian.access$200(Arquillian.java:55)
at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:219)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:167)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:367)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:274)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:161)
at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
Caused by: java.lang.RuntimeException: java.net.ConnectException: WFLYPRT0053: Could not connect to http-remoting://127.0.0.1:9990. The connection failed
at org.jboss.as.controller.client.impl.AbstractModelControllerClient.executeAsync(AbstractModelControllerClient.java:114)
at org.jboss.as.controller.client.helpers.standalone.impl.ModelControllerClientServerDeploymentManager.executeOperation(ModelControllerClientServerDeploymentMana
ger.java:50)
at org.jboss.as.controller.client.helpers.standalone.impl.AbstractServerDeploymentManager.execute(AbstractServerDeploymentManager.java:79)
at org.jboss.as.controller.client.helpers.standalone.ServerDeploymentHelper.undeploy(ServerDeploymentHelper.java:106)
... 83 more
Caused by: java.net.ConnectException: WFLYPRT0053: Could not connect to http-remoting://127.0.0.1:9990. The connection failed
at org.jboss.as.protocol.ProtocolConnectionUtils.connectSync(ProtocolConnectionUtils.java:122)
at org.jboss.as.protocol.ProtocolConnectionManager$EstablishingConnection.connect(ProtocolConnectionManager.java:257)
at org.jboss.as.protocol.ProtocolConnectionManager.connect(ProtocolConnectionManager.java:71)
at org.jboss.as.protocol.mgmt.FutureManagementChannel$Establishing.getChannel(FutureManagementChannel.java:212)
at org.jboss.as.controller.client.impl.RemotingModelControllerClient.getOrCreateChannel(RemotingModelControllerClient.java:146)
at org.jboss.as.controller.client.impl.RemotingModelControllerClient$1.getChannel(RemotingModelControllerClient.java:65)
at org.jboss.as.protocol.mgmt.ManagementChannelHandler.executeRequest(ManagementChannelHandler.java:147)
at org.jboss.as.protocol.mgmt.ManagementChannelHandler.executeRequest(ManagementChannelHandler.java:122)
at org.jboss.as.controller.client.impl.AbstractModelControllerClient.executeRequest(AbstractModelControllerClient.java:263)
at org.jboss.as.controller.client.impl.AbstractModelControllerClient.execute(AbstractModelControllerClient.java:168)
at org.jboss.as.controller.client.impl.AbstractModelControllerClient.executeAsync(AbstractModelControllerClient.java:111)
... 86 more
Caused by: java.net.ConnectException: Connection refused: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.xnio.nio.WorkerThread$ConnectHandle.handleReady(WorkerThread.java:319)
at org.xnio.nio.WorkerThread.run(WorkerThread.java:559)
at ...asynchronous invocation...(Unknown Source)
at org.jboss.remoting3.EndpointImpl.doConnect(EndpointImpl.java:294)
at org.jboss.remoting3.EndpointImpl.doConnect(EndpointImpl.java:275)
at org.jboss.remoting3.EndpointImpl.connect(EndpointImpl.java:379)
at org.jboss.remoting3.EndpointImpl.connect(EndpointImpl.java:367)
at org.jboss.as.protocol.ProtocolConnectionUtils.connect(ProtocolConnectionUtils.java:83)
at org.jboss.as.protocol.ProtocolConnectionUtils.connectSync(ProtocolConnectionUtils.java:114)
... 96 more
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 5.463 sec <<< FAILURE! - in com.pluralsight.bookstore.repository.BookRepositoryTest
com.pluralsight.bookstore.repository.BookRepositoryTest Time elapsed: 5.462 sec <<< ERROR!
org.jboss.arquillian.container.spi.client.container.DeploymentException: Cannot deploy: test.war
Caused by: java.net.ConnectException: Connection refused: no further information
Aug 04, 2018 11:09:48 AM org.jboss.arquillian.core.impl.ObserverImpl resolveArguments
WARNING: Argument 2 for ArquillianServiceDeployer.undeploy is null. It won't be invoked.
Results :
Tests in error:
BookRepositoryTest.com.pluralsight.bookstore.repository.BookRepositoryTest » Deployment
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0