Cannot get Jenkins environment variables from Custom stylesheets when using Custom tool configuration

Since XLST 3.0 there are two functions to get environment variables within a stylesheet 
(available-environment-variables and environment-variable)
I can access to the regular system environment variables but no the environment variables set by Jenkins such as JENKINS_URL, JOB_URL, BUILD_NUMBER, ....

I've tested with Freestyle jobs and pipeline jobs in Windows and Linux with the same results.

An example with pipeline:

pipeline {
    agent  any
    stages {
        stage('Build') { 
            steps {
            xunit([Custom(customXSL: 'transform.xslt', deleteOutputFiles: false, failIfNotNew: false, pattern: 'aresult.xml', skipNoTestFiles: false, stopProcessingIfError: false)]) 
 
            }
        }
    }  
}

Check the xml file generated in generatedJUnitFiles/ folder. It doesn't list the Jenkins environment variables