Intermittent failures in DeploymentOverlayCLITestCase

java.lang.RuntimeException: java.io.IOException: User limit of inotify instances reached or too many open files
	at org.xnio.nio.WatchServiceFileSystemWatcher.<init>(WatchServiceFileSystemWatcher.java:75)
	at org.xnio.nio.NioXnio.createFileSystemWatcher(NioXnio.java:241)
	at io.undertow.server.handlers.resource.PathResourceManager.registerResourceChangeListener(PathResourceManager.java:256)
	at org.wildfly.extension.undertow.deployment.ServletResourceManager.registerResourceChangeListener(ServletResourceManager.java:117)
	at io.undertow.server.handlers.resource.CachingResourceManager.registerResourceChangeListener(CachingResourceManager.java:131)
	at io.undertow.servlet.core.ManagedServlet$DefaultInstanceStrategy.start(ManagedServlet.java:310)
	at io.undertow.servlet.core.ManagedServlet.forceInit(ManagedServlet.java:212)
	at io.undertow.servlet.handlers.ServletChain.forceInit(ServletChain.java:130)
	at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:63)
	at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
	at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
	at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132)
	at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
	at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
	at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
	at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
	at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
	at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
	at io.undertow.servlet.handlers.SendErrorPageHandler.handleRequest(SendErrorPageHandler.java:52)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269)
	at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78)
	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133)
	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130)
	at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
	at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
	at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
	at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
	at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
	at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
	at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1530)
	at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249)
	at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78)
	at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99)
	at io.undertow.server.Connectors.executeRootHandler(Connectors.java:387)
	at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:841)
	at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
	at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1990)
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
	at org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1280)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: User limit of inotify instances reached or too many open files
	at sun.nio.fs.LinuxWatchService.<init>(LinuxWatchService.java:64)
	at sun.nio.fs.LinuxFileSystem.newWatchService(LinuxFileSystem.java:47)
	at org.xnio.nio.WatchServiceFileSystemWatcher.<init>(WatchServiceFileSystemWatcher.java:73)
	... 49 more
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	at org.jboss.as.test.integration.common.HttpRequest.execute(HttpRequest.java:61)
	at org.jboss.as.test.integration.common.HttpRequest.get(HttpRequest.java:82)
	at org.jboss.as.test.integration.management.cli.DeploymentOverlayCLITestCase.simpleOverrideInEarAtWarLevelExplodedTest(DeploymentOverlayCLITestCase.java:415)
	at org.jboss.as.test.integration.management.cli.DeploymentOverlayCLITestCase.testSimpleOverrideInEarAtWarLevelExploded(DeploymentOverlayCLITestCase.java:383)