"IllegalArgumentException: UT000068: Servlet path match failed" happens for the CONNECT request when the root context application is deployed in JBoss EAP 7

Issue

The following "IllegalArgumentException: UT000068: Servlet path match failed" happens for the CONNECT request when the root context application is deployed in JBoss EAP 7:

ERROR [io.undertow.request] (default I/O-35) UT005071: Undertow request failed HttpServerExchange{ CONNECT www.example.com:443 request {} response {X-Powered-By=[Undertow/1], Server=[JBoss-EAP/7]}}: java.lang.IllegalArgumentException: UT000068: Servlet path match failed
    at io.undertow.servlet.handlers.ServletPathMatchesData.getServletHandlerByPath(ServletPathMatchesData.java:83)
    at io.undertow.servlet.handlers.ServletPathMatches.getServletHandlerByPath(ServletPathMatches.java:83)
    at io.undertow.servlet.handlers.ServletInitialHandler.handleRequest(ServletInitialHandler.java:127)
    at org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:39)
    at io.undertow.server.handlers.HttpContinueReadHandler.handleRequest(HttpContinueReadHandler.java:65)
    at io.undertow.server.handlers.PathHandler.handleRequest(PathHandler.java:94)
    at io.undertow.server.handlers.accesslog.AccessLogHandler.handleRequest(AccessLogHandler.java:138)
    at org.wildfly.extension.undertow.Host$OptionsHandler.handleRequest(Host.java:285)
    at io.undertow.server.handlers.HttpContinueReadHandler.handleRequest(HttpContinueReadHandler.java:65)
    at io.undertow.server.handlers.SetHeaderHandler.handleRequest(SetHeaderHandler.java:90)
    at io.undertow.server.handlers.SetHeaderHandler.handleRequest(SetHeaderHandler.java:90)
    at org.wildfly.extension.undertow.Host$HostRootHandler.handleRequest(Host.java:293)
    at io.undertow.server.handlers.NameVirtualHostHandler.handleRequest(NameVirtualHostHandler.java:64)
    at io.undertow.server.handlers.error.SimpleErrorPageHandler.handleRequest(SimpleErrorPageHandler.java:76)
    at io.undertow.server.handlers.CanonicalPathHandler.handleRequest(CanonicalPathHandler.java:49)
    at io.undertow.server.handlers.ChannelUpgradeHandler.handleRequest(ChannelUpgradeHandler.java:158)
    at io.undertow.server.handlers.DisallowedMethodsHandler.handleRequest(DisallowedMethodsHandler.java:61)
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:207)
    at io.undertow.server.protocol.http.HttpReadListener.handleEventWithNoRunningRequest(HttpReadListener.java:233)
    at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:131)
    at io.undertow.server.protocol.http.HttpReadListener.handleEvent(HttpReadListener.java:57)
    at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
    at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
    at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:89)
    at org.xnio.nio.WorkerThread.run(WorkerThread.java:567)