The jboss-eap74-openjdk8-openshift imagestream at https://github.com/jboss-container-images/jboss-eap-openshift-templates/blob/eap74/eap74-openjdk8-image-stream.json uses an incorrect DockerImage location:

It should be registry.redhat.io/jboss-eap-7/eap74-openjdk8-openshift-rhel7:latest instead of registry.redhat.io/jboss-eap-7/eap74-openjdk8-openshift-rhel7:latest

Without that change, the image stream is not usable.