wirelesswireless_connection_* shows errors: extra argument

ubuntu@201501-16341:~$ plainbox run -i "2013.com.canonical.certification::wireless/wireless_connection_wpa_n"
===============================[ Analyzing Jobs ]===============================
=============================[ Session Statistics ]=============================
This session is about 0.00% complete
Estimated duration is 31.75 for automated jobs.
Estimated duration cannot be determined for manual jobs.
Size of the desired job list: 1
Size of the effective execution plan: 4
===========================[ Running Selected Jobs ]============================
--------------[ Running job 1 / 4. Estimated time left: 0:00:32 ]---------------
--------------------------------[ environment ]---------------------------------
ID: 2013.com.canonical.certification::environment
Category: 2013.com.canonical.plainbox::uncategorised
(Command output hidden)
Outcome: job passed
--------------[ Running job 2 / 4. Estimated time left: 0:00:32 ]---------------
-----------[ Collect information about installed software packages ]------------
ID: 2013.com.canonical.certification::package
Category: 2013.com.canonical.plainbox::uncategorised
(Command output hidden)
Outcome: job passed
--------------[ Running job 3 / 4. Estimated time left: 0:00:30 ]---------------
-------------[ Collect information about hardware devices (udev) ]--------------
ID: 2013.com.canonical.certification::device
Category: 2013.com.canonical.plainbox::uncategorised
(Command output hidden)
Outcome: job passed
--------------[ Running job 4 / 4. Estimated time left: 0:00:30 ]---------------
---------------------[ wireless/wireless_connection_wpa_n ]---------------------
ID: 2013.com.canonical.certification::wireless/wireless_connection_wpa_n
Category: 2013.com.canonical.plainbox::wireless
... 8< -------------------------------------------------------------------------
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/6)
Connection ubuntu-cert-n-wpa registered
Connection ubuntu-cert-n-wpa activated.
Error: extra argument not allowed: 'eth0'.
Error: extra argument not allowed: 'wlan0'.
Error: extra argument not allowed: 'lo'.
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/7)
Connected to 04:a1:51:32:0d:b7 (on wlan0)
        SSID: ubuntu-cert-n-wpa
        freq: 2437
        signal: -34 dBm
        tx bitrate: 65.0 MBit/s
Internet connection fully established
Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/8)
------------------------------------------------------------------------- >8 ---
Outcome: job passed
==================================[ Results ]===================================
 ? : environment
 ? : Collect information about installed software packages
 ? : Collect information about hardware devices (udev)
 ? : wireless/wireless_connection_wpa_n

 ubuntu@201501-16341:~$ uname -a
 Linux 201501-16341 3.19.0-41-generic #46-Ubuntu SMP Fri Dec 4 18:18:11 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
 ubuntu@201501-16341:~$ lsb_release -a
 No LSB modules are available.
 Distributor ID: Ubuntu
 Description: Ubuntu 15.04
 Release: 15.04
 Codename: vivid

 ubuntu@201501-16341:~$ dpkg -l|grep -E 'checkbox|canonical|plainbox'
 ii canonical-certification-client 0.18+bzr3943+pkg54~ubuntu15.04.1 all Client Certification Launcher
 ii checkbox-autostart-desktop 0.2+bzr4134+pkg3~ubuntu15.04.1 all Automatic system testing for desktop systems
 ii checkbox-gui 0.35+bzr3986+pkg19~ubuntu15.04.1 amd64 QML based interface for system testing based on PlainBox.
 ii checkbox-ng 0.24+bzr4134+pkg36~ubuntu15.04.1 all PlainBox based test runner
 ii checkbox-ng-service 0.23+bzr4122+pkg34~ubuntu15.04.1 all CheckBox D-Bus service (transitional package)
 ii plainbox 0.26+bzr4134+pkg39~ubuntu15.04.1 all toolkit for software and hardware integration testing
 ii plainbox-glmark2-es2-meta 0.18+bzr3943+pkg54~ubuntu15.04.1 amd64 metapackage to selectively install glmark2-es2
 ii plainbox-insecure-policy 0.26+bzr4134+pkg39~ubuntu15.04.1 all policykit policy required to use plainbox (insecure version)
 ii plainbox-provider-certification-client 0.18+bzr3943+pkg54~ubuntu15.04.1 all Client Certification
 ii plainbox-provider-checkbox 0.25+bzr4134+pkg29~ubuntu15.04.1 amd64 CheckBox provider for PlainBox
 ii plainbox-provider-resource-generic 0.23+bzr4134+pkg24~ubuntu15.04.1 amd64 CheckBox generic resource jobs provider
 ii python3-checkbox-ng 0.24+bzr4134+pkg36~ubuntu15.04.1 all PlainBox based test runner (Python 3 library)
 ii python3-checkbox-support 0.24+bzr4134+pkg26~ubuntu15.04.1 all collection of Python modules used by PlainBox providers
 ii python3-plainbox 0.26+bzr4134+pkg39~ubuntu15.04.1 all toolkit for software and hardware testing (python3 module)