try {    
    node {
        List envVars = []
        List newVars = ['one', 'two']
        
        envVars.addAll(newVars)
        echo "hello world"
    }
}
catch (exc) {
    echo "I'm going to mail a build failure out about: ${exc}"
    currentBuild.result = 'FAILURE'
}

Started by user admin
[Pipeline] node
Running on Azure0812014523 in /home/azureuser/workspace/Experiments/script-approval
[Pipeline] {
[Pipeline] }
[Pipeline] // node
[Pipeline] echo
I'm going to mail a build failure out about: org.jenkinsci.plugins.scriptsecurity.sandbox.RejectedAccessException: Scripts not permitted to use method java.util.Collection addAll java.util.Collection
[Pipeline] End of Pipeline
Finished: FAILURE

    if (exc.class == org.jenkinsci.plugins.scriptsecurity.sandbox.RejectedAccessException) {
        throw exc
    }