NPE Using Jenkins Pipeline on a build agent

[fredkvogt]

Works on the Jenkins master, but on a build slave NPEs on ConsulKVReadWrapper:105

Fails:

node ('agent') {
    wrap([$class: 'ConsulKVReadWrapper', reads: [
        [key: 'some/path', envKey: 'VALUE'],
        ]
    ]) {
        echo env.VALUE
    }
}

Works:

node ('master') {
    wrap([$class: 'ConsulKVReadWrapper', reads: [
        [key: 'some/path', envKey: 'VALUE'],
        ]
    ]) {
        echo env.VALUE
    }
}

Tested with Jenkins: 2.113