I've been working with Jenkins a lot recently, in part co-developing a Plugin using Java.
I've also been munging various existing Pipelines, many of which are written in Groovy ( hence the Austin Powers reference ).
One thing I did NOT know ..... ( of many, of course ) ....
Jenkins has a nice little Script Console
This is available from the Jenkins server's main URL: -
https://jenkins.myserver.com/script
which allowed me to play with some Groovy -> environment variable stuff: -
