Both tests seem to be unable to deploy testing application (stacktrace from HotRodClientIT):

org.jboss.arquillian.container.spi.client.container.DeploymentException: Cannot deploy: remote-client.war
at org.jboss.as.arquillian.container.ArchiveDeployer.deployInternal(ArchiveDeployer.java:83)
at org.jboss.as.arquillian.container.ArchiveDeployer.deployInternal(ArchiveDeployer.java:64)
at org.jboss.as.arquillian.container.ArchiveDeployer.deploy(ArchiveDeployer.java:46)
...
at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
Caused by: java.lang.Exception: {"WFLYCTL0080: Failed services" => {"jboss.deployment.unit.\"remote-client.war\".INSTALL" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"remote-client.war\".INSTALL: WFLYSRV0153: Failed to process phase INSTALL of deployment \"remote-client.war\"
Caused by: java.lang.NullPointerException"}}
at org.jboss.as.controller.client.helpers.standalone.impl.ServerDeploymentPlanResultFuture.getActionResult(ServerDeploymentPlanResultFuture.java:134)
at org.jboss.as.controller.client.helpers.standalone.impl.ServerDeploymentPlanResultFuture.getResultFromNode(ServerDeploymentPlanResultFuture.java:123)
at org.jboss.as.controller.client.helpers.standalone.impl.ServerDeploymentPlanResultFuture.get(ServerDeploymentPlanResultFuture.java:85)