fence_vmware_soap fails to start with "AttributeError: 'NoneType' object has no attribute 'objects' "

Issue

Start operation of fence_vmware_soap fails, inspecting the logs reveals the following traceback:

warning: fence_vmware_soap[7845] stderr: [ Traceback (most recent call last): ]
warning: fence_vmware_soap[7845] stderr: [   File "/usr/sbin/fence_vmware_soap", line 261, in <module> ]
warning: fence_vmware_soap[7845] stderr: [     main() ]
warning: fence_vmware_soap[7845] stderr: [   File "/usr/sbin/fence_vmware_soap", line 255, in main ]
warning: fence_vmware_soap[7845] stderr: [     result = fence_action(conn_global, options_global, set_power_status, get_power_status, get_power_status) ]
warning: fence_vmware_soap[7845] stderr: [   File "/usr/share/fence/fencing.py", line 861, in fence_action ]
warning: fence_vmware_soap[7845] stderr: [     outlets = get_outlet_list(connection, options) ]
warning: fence_vmware_soap[7845] stderr: [   File "/usr/sbin/fence_vmware_soap", line 132, in get_power_status ]
warning: fence_vmware_soap[7845] stderr: [     (machines, uuid, mappingToUUID) = process_results(raw_machines, {}, {}, {}) ]
warning: fence_vmware_soap[7845] stderr: [   File "/usr/sbin/fence_vmware_soap", line 79, in process_results ]
warning: fence_vmware_soap[7845] stderr: [     for m in results.objects: ]
warning: fence_vmware_soap[7845] stderr: [ AttributeError: 'NoneType' object has no attribute 'objects' ]