Deployment fails intermittently with java.util.NoSuchElementException --------------------------------------------------------------------- Key: WFLY-7933 URL: https://issues.jboss.org/browse/WFLY-7933 Project: WildFly Issue Type: Bug Reporter: Stuart Douglas Assignee: Stuart Douglas In a few cases the application deployment failed with the exception below. The issue is intermittent, but it was seen independently when running Resteasy and Webservices testsuites. {code:java} ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 76) MSC000001: Failed to start service jboss.undertow.deployment.default-server.default-host./ClientErrorTest: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./ClientErrorTest: java.util.NoSuchElementException at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:84) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) at org.jboss.threads.JBossThread.run(JBossThread.java:320) Caused by: java.util.NoSuchElementException at java.util.LinkedList.removeLast(LinkedList.java:283) at org.jboss.jca.core.connectionmanager.ccm.CachedConnectionManagerImpl.popMetaAwareObject(CachedConnectionManagerImpl.java:278) at org.jboss.as.connector.deployers.ra.processors.CachedConnectionManagerSetupProcessor$CachedConnectionManagerSetupAction.teardown(CachedConnectionManagerSetupProcessor.java:113) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1691) at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1689) at io.undertow.servlet.core.DeploymentManagerImpl.start(DeploymentManagerImpl.java:565) at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:100) at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:81) ... 6 more {code}