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Bug 864918

Summary: [Backend] NPE when starting stateless VM (at org.ovirt.engine.core.bll.Backend.endAction(Backend.java:355))
Product: Red Hat Enterprise Virtualization Manager Reporter: Jakub Libosvar <jlibosva>
Component: ovirt-engineAssignee: Michal Skrivanek <michal.skrivanek>
Status: CLOSED DUPLICATE QA Contact: Jakub Libosvar <jlibosva>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 3.1.0CC: acathrow, dyasny, fkobzik, hateya, iheim, lpeer, Rhev-m-bugs, sgrinber, yeylon, ykaul
Target Milestone: ---Keywords: Regression
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard: virt
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-10-18 07:47:52 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
engine log none

Description Jakub Libosvar 2012-10-10 11:50:01 UTC 
Created attachment 624809 [details]
engine log

Description of problem:
When starting VM with stateless=True, NPE occurs:
2012-10-10 13:11:43,690 ERROR [org.ovirt.engine.core.bll.EntityAsyncTask] (pool-4-thread-50) EntityAsyncTask::EndCommandAction [within thread]: EndAction for action type RunVmOnce threw an exception: java.lang.NullPointerException
	at org.ovirt.engine.core.bll.Backend.endAction(Backend.java:355) [engine-bll.jar:]
	at sun.reflect.GeneratedMethodAccessor207.invoke(Unknown Source) [:1.7.0_05-icedtea]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_05-icedtea]
	at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_05-icedtea]
	at org.jboss.as.ee.component.ManagedReferenceMethodInterceptorFactory$ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptorFactory.java:72) [jboss-as-ee.jar:7.1.2.Final-redhat-1]
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation.jar:1.1.1.Final-redhat-1]
	at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:374) [jboss-invocation.jar:1.1.1.Final-redhat-1]
	at org.ovirt.engine.core.utils.ThreadLocalSessionCleanerInterceptor.injectWebContextToThreadLocal(ThreadLocalSessionCleanerInterceptor.java:11) [engine-utils.jar:]
	at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source) [:1.7.0_05-icedtea]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_05-icedtea]
	at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_05-icedtea]
	at org.jboss.as.ee.component.ManagedReferenceLifecycleMethodInterceptorFactory$ManagedReferenceLifecycleMethodInterceptor.processInvocation(ManagedReferenceLifecycleMethodInterceptorFactory.java:123) [jboss-as-ee.jar:7.1.2.Final-redhat-1]


Version-Release number of selected component (if applicable):
rhevm-backend-3.1.0-20.el6ev.noarch

How reproducible:
Always

Steps to Reproduce:
1. Have a VM 
2. Start it with stateless checkbox checked (or set it stateless as default)
  
Actual results:
NPE, task hangs

Expected results:
Snapshot is created and VM is started

Additional info:
seems like we already had it - bug 520818
Backend log attached
Comment 3 Frantisek Kobzik 2012-10-18 07:47:52 UTC 

*** This bug has been marked as a duplicate of bug 863766 ***