We found a change that prints an annoying warning about the CPS mismatch during running the MPL module: https://github.com/griddynamics/mpl/issues/31
We're not quite sure how to fix that in the library, but realized that the issue is related to the change
JENKINS-31314 introduced in workflow-cps-2.71.
Reproduce is quite simple - just need to install the minimal latest jenkins, add required git & shared lib plugins, attach mpl library from github and create a simple jenkins job to build the mpl. It will fail (no Maven 3 tool) - but will show the issue during each module start.
Who could help with determining the actual cause and how to fix that?