There is chapter named Migrating to JBoss EAP for OpenShift JDK 11 Image in EAP for OpenShift guide:
https://doc-stage.usersys.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.3/html-single/getting_started_with_jboss_eap_for_openshift_container_platform/index#migrate_jdk8_image_to_jdk11_image

This chapter does not seem to bring any additional value. It repeats information that is covered in other parts of the same book:
5.1. Prepare OpenShift for Application Deployment using JDK 11 Image

• This one says it is the same as JDK8
  5.2. Import JDK 11 Image
• This shows the same as 2.4. Import the Latest JBoss EAP for OpenShift Image Streams and Templates
  5.3. Deploy a JBoss EAP S2I Application to OpenShift using JDK 11 Image
• This shows the same as 2.5. Deploy a JBoss EAP Source-to-Image (S2I) Application to OpenShift
  5.4. Configure JBoss EAP for OpenShift Using Environment Variables for JDK 11 Image
• This one says it is the same as JDK8

Why is this chapter needed? Why is it called Migrating to JBoss EAP for OpenShift JDK 11 Image if it is not about actual migration? We have JDK8 and JDK11 images and this one shows one of them even though the whole book is applicable to both of them.