Created attachment 1073710 [details]
engine.log - edit cluster - NPE

Description of problem:
When trying to submit any changes to any existing cluster (including Default), the dialog does not react and NPE is thrown in engine.log.
This happens only in UI, updates via REST API work ok.

Version-Release number of selected component (if applicable):
rhevm-3.6.0-0.15.master.el6.noarch
rhevm-webadmin-portal-3.6.0-0.15.master.el6.noarch

How reproducible:
100%

Steps to Reproduce:
1. Clean installation of RHEVM 3.6.
2. Log into webadmin, go to Clusters tab and create a cluster. Fill in whatever values you like.
3. Then edit the cluster and submit the dialog. It doesn't matter if you change any values there or not.


Actual results:
Dialog does not react to the OK button or Enter key and is still present. No error is shown in UI.
NullPointerException is thrown in engine.log, see attachment for full traceback.


Expected results:
Dialog is submited and all changes are applied.
No tracebacks in engine.log, of course.

Additional info:
Traceback snippet:

2015-09-15 13:09:37,454 ERROR [org.ovirt.engine.core.bll.GetClusterEditWarningsQuery] (ajp-/127.0.0.1:8702-7) [] Query 'GetClusterEditWarningsQuery' failed: null
2015-09-15 13:09:37,454 ERROR [org.ovirt.engine.core.bll.GetClusterEditWarningsQuery] (ajp-/127.0.0.1:8702-7) [] Exception: java.lang.NullPointerException
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