Chapter 3. Preparation for migration
Chapter 3. Preparation for migration Red Hat build of OpenJDK 11 includes changes that might require you to reconfigure your applications, which were already successfully deployed on Red Hat build of OpenJDK 8. You can ensure an effective migration plan by completing the following tasks: Review the Major differences between Red Hat build of OpenJDK 8 and Red Hat build of OpenJDK 11 section. Integrate the differences into your migration plan. 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 8 to Red Hat build of OpenJDK 11. Additional resources For more information about the installation of Red Hat build of OpenJDK 11 on RHEL, see the Installing and using Red Hat build of OpenJDK 11 on RHEL guide. For more information about the installation of Red Hat build of OpenJDK 11 on Microsoft Windows, see the Installing and using Red Hat build of OpenJDK 11 for Windows guide. For more information about switching between Red Hat build of OpenJDK versions on RHEL, see Interactively selecting a system-wide Red Hat build of OpenJDK version of RHEL in the Configuring Red Hat build of OpenJDK 11 on RHEL guide. For more information about switching between Red Hat build of OpenJDK versions on Microsoft Windows, see Selecting a specific Red Hat build of OpenJDK from the installed versions of an application in the Configuring Red Hat build of OpenJDK 11 on Microsoft Windows guide. For more information about the MTA tool, see the Introduction to the Migration Toolkit for Applications guide.