Modification of payload to read variables in memory

[greglans]

Hello,

I am trying to modify the OGNL expression/payload to read variables INSTEAD of going the create process route.
More specifically I want to read the database parameters which are loaded into memory:
https://confluence.atlassian.com/confkb/how-to-find-confluence-s-database-connection-parameters-779172320.html#:~:text=Solution,xml%20file.

Do you know how to modify the payload to accomplish this? The learning curve for OGNL is steep, I have tried unsuccessfully to modify the payload for days. I don't know what I'm doing wrong.

If you knew the direction to take or could do this quickly it would mean so much to me.

Thanks