I'm observing this transient failure in wildfly test suite:

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[ERROR] org.jboss.as.test.multinode.transaction.TransactionInvocationTestCase  Time elapsed: 0.013 s  <<< ERROR!
org.jboss.arquillian.container.spi.client.container.DeploymentException: Cannot deploy: client.jar
    at org.jboss.as.arquillian.container.ArchiveDeployer.createException(ArchiveDeployer.java:214)
    at org.jboss.as.arquillian.container.ArchiveDeployer.deployInternal(ArchiveDeployer.java:179)
    at org.jboss.as.arquillian.container.ArchiveDeployer.deployInternal(ArchiveDeployer.java:162)
    at org.jboss.as.arquillian.container.ArchiveDeployer.deploy(ArchiveDeployer.java:91)
    at org.jboss.as.arquillian.container.CommonDeployableContainer.deploy(CommonDeployableContainer.java:256)
    at org.jboss.arquillian.container.impl.client.container.ContainerDeployController$3.call(ContainerDeployController.java:151)
    at org.jboss.arquillian.container.impl.client.container.ContainerDeployController$3.call(ContainerDeployController.java:118)
    at org.jboss.arquillian.container.impl.client.container.ContainerDeployController.executeOperation(ContainerDeployController.java:239)
    at org.jboss.arquillian.container.impl.client.container.ContainerDeployController.deploy(ContainerDeployController.java:118)
    at jdk.internal.reflect.GeneratedMethodAccessor13.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:86)
    at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:103)
    at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:90)
    at org.jboss.arquillian.container.impl.client.container.DeploymentExceptionHandler.verifyExpectedExceptionDuringDeploy(DeploymentExceptionHandler.java:47)
    at jdk.internal.reflect.GeneratedMethodAccessor12.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:86)
    at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:95)
    at org.jboss.arquillian.container.impl.client.ContainerDeploymentContextHandler.createDeploymentContext(ContainerDeploymentContextHandler.java:71)
    at jdk.internal.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:86)
    at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:95)
    at org.jboss.arquillian.container.impl.client.ContainerDeploymentContextHandler.createContainerContext(ContainerDeploymentContextHandler.java:54)
    at jdk.internal.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:86)
    at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:95)
    at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:133)
    at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:105)
    at org.jboss.arquillian.core.impl.EventImpl.fire(EventImpl.java:62)
    at org.jboss.arquillian.container.impl.client.container.ContainerDeployController$1.perform(ContainerDeployController.java:92)
    at org.jboss.arquillian.container.impl.client.container.ContainerDeployController$1.perform(ContainerDeployController.java:77)
    at org.jboss.arquillian.container.impl.client.container.ContainerDeployController.forEachDeployment(ContainerDeployController.java:232)
    at org.jboss.arquillian.container.impl.client.container.ContainerDeployController.forEachManagedDeployment(ContainerDeployController.java:212)
    at org.jboss.arquillian.container.impl.client.container.ContainerDeployController.deployManaged(ContainerDeployController.java:77)
    at jdk.internal.reflect.GeneratedMethodAccessor24.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:86)
    at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:103)
    at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:90)
    at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:133)
    at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:105)
    at org.jboss.arquillian.core.impl.EventImpl.fire(EventImpl.java:62)
    at org.jboss.arquillian.container.test.impl.client.ContainerEventController.execute(ContainerEventController.java:96)
    at jdk.internal.reflect.GeneratedMethodAccessor21.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:86)
    at org.jboss.arquillian.core.impl.EventContextImpl.invokeObservers(EventContextImpl.java:103)
    at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:90)
    at org.jboss.arquillian.test.impl.TestContextHandler.createSuiteContext(TestContextHandler.java:69)
    at jdk.internal.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:86)
    at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:95)
    at org.jboss.arquillian.test.impl.TestContextHandler.createClassContext(TestContextHandler.java:83)
    at jdk.internal.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.jboss.arquillian.core.impl.ObserverImpl.invoke(ObserverImpl.java:86)
    at org.jboss.arquillian.core.impl.EventContextImpl.proceed(EventContextImpl.java:95)
    at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:133)
    at org.jboss.arquillian.core.impl.ManagerImpl.fire(ManagerImpl.java:105)
    at org.jboss.arquillian.test.impl.EventTestRunnerAdaptor.beforeClass(EventTestRunnerAdaptor.java:89)
    at org.jboss.arquillian.junit.Arquillian$2.evaluate(Arquillian.java:163)
    at org.jboss.arquillian.junit.Arquillian.multiExecute(Arquillian.java:350)
    at org.jboss.arquillian.junit.Arquillian.access$200(Arquillian.java:54)
    at org.jboss.arquillian.junit.Arquillian$3.evaluate(Arquillian.java:177)
    at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
    at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:115)
    at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
    at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
    at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
    at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
    at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
    at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
    at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
    at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
    Suppressed: java.net.ConnectException: WFLYPRT0053: Could not connect to remote+http://127.0.0.1:9990. The connection failed
        at org.jboss.as.protocol.ProtocolConnectionUtils.checkFuture(ProtocolConnectionUtils.java:142)
        at org.jboss.as.protocol.ProtocolConnectionUtils.connectSync(ProtocolConnectionUtils.java:122)
        at org.jboss.as.protocol.ProtocolConnectionManager$EstablishingConnection.connect(ProtocolConnectionManager.java:259)
        at org.jboss.as.protocol.ProtocolConnectionManager.connect(ProtocolConnectionManager.java:70)
        at org.jboss.as.protocol.mgmt.ManagementClientChannelStrategy$Establishing.getChannel(ManagementClientChannelStrategy.java:167)
        at org.jboss.as.controller.client.impl.RemotingModelControllerClient.getOrCreateChannel(RemotingModelControllerClient.java:129)
        at org.jboss.as.controller.client.impl.RemotingModelControllerClient$2.getChannel(RemotingModelControllerClient.java:82)
        at org.jboss.as.protocol.mgmt.ManagementChannelHandler.executeRequest(ManagementChannelHandler.java:135)
        at org.jboss.as.protocol.mgmt.ManagementChannelHandler.executeRequest(ManagementChannelHandler.java:110)
        at org.jboss.as.controller.client.impl.AbstractModelControllerClient.executeRequest(AbstractModelControllerClient.java:263)
        at org.jboss.as.controller.client.impl.AbstractModelControllerClient.execute(AbstractModelControllerClient.java:168)
        at org.jboss.as.controller.client.impl.AbstractModelControllerClient.executeForResult(AbstractModelControllerClient.java:147)
        at org.jboss.as.controller.client.impl.AbstractModelControllerClient.execute(AbstractModelControllerClient.java:80)
        at org.jboss.as.controller.client.helpers.DelegatingModelControllerClient.execute(DelegatingModelControllerClient.java:68)
        at org.wildfly.plugin.core.DefaultDeploymentManager.execute(DefaultDeploymentManager.java:394)
        at org.wildfly.plugin.core.DefaultDeploymentManager.deploy(DefaultDeploymentManager.java:67)
        at org.jboss.as.arquillian.container.ArchiveDeployer.deployInternal(ArchiveDeployer.java:177)
        ... 85 more
    Caused by: java.net.ConnectException: Connection refused
        at java.base/sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
        at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:779)
        at org.xnio.nio.WorkerThread$ConnectHandle.handleReady(WorkerThread.java:327)
        at org.xnio.nio.WorkerThread.run(WorkerThread.java:591)
        at ...asynchronous invocation...(Unknown Source)
        at org.jboss.remoting3.EndpointImpl.connect(EndpointImpl.java:599)
        at org.jboss.remoting3.EndpointImpl.connect(EndpointImpl.java:561)
        at org.jboss.remoting3.EndpointImpl.connect(EndpointImpl.java:549)
        at org.jboss.as.protocol.ProtocolConnectionUtils.connect(ProtocolConnectionUtils.java:224)
        at org.jboss.as.protocol.ProtocolConnectionUtils.connectSync(ProtocolConnectionUtils.java:118)
        ... 100 more
    [CIRCULAR REFERENCE:java.net.ConnectException: Connection refused]
    [CIRCULAR REFERENCE:java.net.ConnectException: Connection refused]