When we have a job with an Active Choices Parameter that uses a scriptler script and we go to "Build with Parameter", the parameter does not populate with anything.

Jenkins log produces "o.b.u.AbstractScriptableParameter#eval: Error executing script for dynamic parameter java.lang.NullPointerException". Traceback is in the attachment, jenkins.log.

Running the script manually from scriptler returns the correct value.

We downgrade to 2.5.7 as a workaround.