Undertow fails to deploy a web application in ha subsystem in JBoss EAP 7.

Issue

• In an attempt to deploy a test application to a JBoss instance (domain-mode, part of cluster, using custom profile that inherits the ha profile), the deployment fails with:

3/07/2017 14:04:11,180 ERROR [org.jboss.as.server] (ServerService Thread Pool -- 80) WFLYSRV0021: Deploy of deployment "secure-test.war" was rolled back with the following failure message: undefined

• The undertow subsystem is modified as below :

            <subsystem xmlns="urn:jboss:domain:undertow:3.1">
                <buffer-cache name="default"/>
                <server name="default-server">
                    <https-listener name="default" secure="true" enabled-protocols="TLSv1.2" security-realm="HTTPSRealm-server3" socket-binding="https"/>
                    <host name="default-host" alias="localhost, example.com">
                        <access-log prefix="default-host"/>
                    </host>
                </server>
                <servlet-container name="default">
                    <jsp-config display-source-fragment="false" x-powered-by="false"/>
                </servlet-container>
                <filters>
                    <response-header name="server-header" header-name="Server" header-value="SuperSecureServer"/>
                    <response-header name="x-powered-by-header" header-name="x-powered-by" header-value="SuperSecureServer"/>
                </filters>
            </subsystem>

The application deploys fine with the above configuration in the default profile and fails in ha profile.