Chapter 4. Preparation for migration

Red Hat build of OpenJDK 17 includes changes that might require you to reconfigure your applications, which were already successfully deployed on Red Hat build of OpenJDK version 8 or 11.

You can ensure an effective migration plan by completing the following tasks, as appropriate:

Red Hat provides a migration toolkit for applications (MTA) tool that you can use to help with your migration tasks. You can use the MTA tool to migrate Java applications from Red Hat build of OpenJDK version 8 or 11 to Red Hat build of OpenJDK 17.