$ oc replace --force -f https://raw.githubusercontent.com/jboss-container-images/jboss-eap-7-openshift-image/eap73/templates/eap73-openjdk11-image-stream.json
$ oc get is jboss-eap73-openjdk11-runtime-openshift -n openshift -o yaml
... (omitted)
spec:
    from:
      kind: DockerImage
      name: registry.redhat.io/jboss-eap-7/eap73-openjdk8-runtime-openshift-rhel7:latest
...
    name: "7.3"
...
    from:
      kind: DockerImage
      name: registry.redhat.io/jboss-eap-7/eap73-openjdk11-runtime-openshift-rhel8:7.3.0
...
    name: 7.3.0
...
    from:
      kind: DockerImage
      name: registry.redhat.io/jboss-eap-7/eap73-openjdk8-runtime-openshift-rhel7:latest
    name: latest