WFLYUT0079: No SSL Context available from security realm 'ApplicationRealm'

Issue

• We are having issues getting elytron security realm and undertow to work.
• We are seeing the following error:

ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: Failed to start service org.wildfly.undertow.listener.https: org.jboss.msc.service.StartException in service org.wildfly.undertow.listener.https: Failed to start service
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1731) [jboss-msc-1.4.11.Final-redhat-00001.jar:1.4.11.Final-redhat-00001]
    at org.jboss.msc.service.ServiceControllerImpl$ControllerTask.run(ServiceControllerImpl.java:1559) [jboss-msc-1.4.11.Final-redhat-00001.jar:1.4.11.Final-redhat-00001]
    at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
    at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
    at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
    at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
    at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_261]
Caused by: java.lang.IllegalStateException: WFLYUT0079: No SSL Context available from security realm 'ApplicationRealm'. Either the realm is not configured for SSL, or the server has not been reloaded since the SSL config was added.
    at org.wildfly.extension.undertow.HttpsListenerAdd.lambda$configureAdditionalDependencies$0(HttpsListenerAdd.java:111)
    at org.wildfly.extension.undertow.HttpsListenerService.getSsl(HttpsListenerService.java:85)
    at org.wildfly.extension.undertow.HttpsListenerService.startListening(HttpsListenerService.java:142)
    at org.wildfly.extension.undertow.ListenerService.start(ListenerService.java:199)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1739) [jboss-msc-1.4.11.Final-redhat-00001.jar:1.4.11.Final-redhat-00001]
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.execute(ServiceControllerImpl.java:1701) [jboss-msc-1.4.11.Final-redhat-00001.jar:1.4.11.Final-redhat-00001]
    ... 6 more