Bug 1291055

Description of problem:
Trying to import VMware VM from RHEVM failed with "HTTP/1.1 404 Not Found" when trying to get storage path.
VMware environment is 6.0.0 licensed and VMware VM I'm trying to import is with NFS disk.

Version-Release number of selected component (if applicable):
engine: 
rhevm-3.6.1.2-0.1.el6
host (RHEL 7.2):
libvirt-client-1.2.17-13.el7_2.2.x86_64
qemu-kvm-rhev-2.3.0-31.el7_2.4.x86_64
vdsm-4.17.13-1.el7ev

How reproducible:
100%

Steps to Reproduce:
1. From vSphere client, create DC -> Cluster -> add host -> create VM with NFS storage (keep VM powered off during the next steps).
2. Open RHEVM, navigate to virtual machines tab -> click import.
3. Enter vCenter details and credentials -> click "load"
4. Select one of the VMs that were listed to import and click "next".
5. Select host and storage domain destination -> click "ok"

Actual results:
After import process started, it failed during import VM disk phase with the next engine.log (IP address changed to 10.X.X.X by me):
2015-12-13 10:15:40,742 INFO  [org.ovirt.engine.core.bll.ConvertVmCallback] (DefaultQuartzScheduler_Worker-27) [] Conversion of VM from exteral enironment failed: Job u'423c3d8c-15e9-4650-f0fa-02d0a8332ea9' process failed exit-code: 1, stderr: curl -q --insecure --user '<hidden>' --head --silent --url 'https://10.X.X.X/folder/rhel7/rhel7-flat.vmdk?dcPath=Compute/cluster&dsName=storage'
HTTP/1.1 404 Not Found
Date: Sun, 13 Dec 2015 08:16:14 GMT
Set-Cookie: vmware_soap_session="c905314a0fd3cec35f9442c995f067b3704e08ec"; Path=/; HttpOnly; Secure; 
Connection: close
Content-Type: text; charset=plain
Content-Length: 0

virt-v2v: error: vcenter: URL not found: 
https://10.35.161.20/folder/rhel7/rhel7-flat.vmdk?dcPath=Compute/cluster&dsName=storage

Expected results:
Import VM should succeed.

Additional info:
engine.log and vdsm.log attached.
vdsm issue occurred at: Thread-29651::ERROR::2015-12-13 10:16:14,715
engine issue occurred at: 2015-12-13 10:15:40,742