Created attachment 796360 [details]
enigne.log

Description of problem:
It's impossible to forcibly destroy a glance storage domain on REHVM.
engine throws NullPointerException:

2013-09-11 15:34:09,072 ERROR [org.ovirt.engine.core.bll.storage.ForceRemoveStorageDomainCommand] (pool-5-thread-47) [979c35a] Command org.ovirt.engine.core.bll.storage.ForceRemoveStorageDomainCommand throw exception: java.lang.NullPointerException
        at org.ovirt.engine.core.bll.storage.ForceRemoveStorageDomainCommand.executeCommand(ForceRemoveStorageDomainCommand.java:54) [bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.executeWithoutTransaction(CommandBase.java:1131) [bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.executeActionInTransactionScope(CommandBase.java:1216) [bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.runInTransaction(CommandBase.java:1881) [bll.jar:]
        at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInNewTransaction(TransactionSupport.java:210) [utils.jar:]
        at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInRequired(TransactionSupport.java:149) [utils.jar:]
        at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInScope(TransactionSupport.java:118) [utils.jar:]
        at org.ovirt.engine.core.bll.CommandBase.execute(CommandBase.java:1236) [bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.executeAction(CommandBase.java:366) [bll.jar:]
        at org.ovirt.engine.core.bll.MultipleActionsRunner.executeValidatedCommand(MultipleActionsRunner.java:175) [bll.jar:]
        at org.ovirt.engine.core.bll.MultipleActionsRunner.RunCommands(MultipleActionsRunner.java:156) [bll.jar:]
        at org.ovirt.engine.core.bll.MultipleActionsRunner$1.run(MultipleActionsRunner.java:94) [bll.jar:]
        at org.ovirt.engine.core.utils.threadpool.ThreadPoolUtil$InternalWrapperRunnable.run(ThreadPoolUtil.java:71) [utils.jar:]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [rt.jar:1.7.0_25]
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) [rt.jar:1.7.0_25]
        at java.util.concurrent.FutureTask.run(FutureTask.java:166) [rt.jar:1.7.0_25]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_25]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_25]
        at java.lang.Thread.run(Thread.java:724) [rt.jar:1.7.0_25]


Version-Release number of selected component (if applicable):
rhevm-3.3.0-0.19.master.el6ev.noarch

How reproducible:
100%

Steps to Reproduce:
1. add a glance images external provider to RHEVM
2. force destroy the glance storage domain


Actual results:
Engine fails in ForceRemoveStorageDomainCommand

Expected results:
ForceRemoveStorageDomainCommand should work 

Additional info: logs