The Identity Portal is pointing to an Oracle Java version and we want to switch the configuration over to use an AdoptOpenJDK instead.
Release : 14.2, 14.3, 14.4
How you reconfigure Portal to use a different JDK is dependant on your Application server.
For example for Wildfly / JBOSS you would install the new AdoptOpenJDK, then update the standalone.bat (or .sh in the case of linux) file, "\wildfly-8.2.1.Final\bin\standalone.bat", change the JAVA_HOME variable and restart the Application server.
For Weblogic, the JDK is also controlled by the application server and can be modified by your Weblogic Admin.