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Install and select ALL of the options (JAVA_HOME and JavaSoft Oracle registry keys are unselected):
Update ComponentsServices (jrest, presence-aggregator ...)
Make a backup of the original component directory.
Then make a clean new copy of the new version of the component (jrest, presence-aggregator ... from the deploy directory in jtel-system-java-services).
None of the components should need any configuration on a new up to date jtel standard installation.
Check Services
If the component was running as a service, install the service again now, and then start.
For shell:startup deployments, try and start the service. The new startup cmd file for the service should find the new java automatically (as JAVA_HOME is now set from the Temurin installation above).
Linux
Uninstall old java
For most debian installations, this will to the trick:
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