upgrade java version in windows agent

[Abhishek Nayak]

Hi Team,

We need to upgrade our Java version in all of the ra based agents, currently its using JDK 1.8, but after comparing the compatibility matrix we know agents support Java versions from 11 to 17, so we got a request from our client to upgrade the java version in the agent , Can anyone please let us know the steps for upgrading java in all the agents?  if any document is also there, please forward us the doc 

Thanks,

Abhishek

[Andrzej Golaszewski]

Hi

i prefere the following migration path. For testing purposes i would advice a testing environment. 

You can only proceed to the next step if the step you working on is successfully done. Make shure that you can step backward to a running state. If you have a virtual environment, make a snapshot of functioning environment.

1. Install the OpenJDK JRE in V11 or 17 ( V24 recommend Java JRE V17 ) parallel without setting path to the new JRE 
2. Set Java Home Variable temporarily to the new path, and start the agent.
3. Look at the Agents Log Files to see if the agent is running properly 
4. Run a testjob to check your agent work correctly
5. Change system wide JAVA_HOME Variable 

Best regards
A. Golaszewski