Bug 854185

Summary: [engine-core] IndexOutOfBoundsException when trying to preview snapshot with no disks (@ BaseImagesCommand.findImageForSameDrive(BaseImagesCommand.java:218)
Product: Red Hat Enterprise Virtualization Manager Reporter: Haim <hateya>
Component: ovirt-engineAssignee: Liron Aravot <laravot>
Status: CLOSED WORKSFORME QA Contact: Haim <hateya>
Severity: high Docs Contact:
Priority: unspecified    
Version: 3.1.0CC: amureini, dron, dyasny, hkim, iheim, lpeer, Rhev-m-bugs, yeylon, ykaul
Target Milestone: ---Keywords: Regression
Target Release: 3.1.0   
Hardware: x86_64   
OS: Linux   
Whiteboard: storage
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-09-09 13:30:11 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: Storage RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 848298    
Attachments:
Description Flags
engine.log none

Description Haim 2012-09-04 09:25:45 UTC
Description of problem:

- create vm
- take snapshot
- try to preview

2012-09-04 15:18:26,385 INFO  [org.ovirt.engine.core.bll.TryBackToSnapshotCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] Running command: TryBackToSnapshotCommand internal: true. Entities affected :  ID: 00000000-0000-0000-0000-000000000000 Type: Storage
2012-09-04 15:18:26,386 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.GetImageInfoVDSCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] START, GetImageInfoVDSCommand(storagePoolId = 520180ca-5062-4abd-a973-6246282b2812, ignoreFailoverLimit = false, compatabilityVersion = null, storageDomainId = 29741863-4295-4794-bfcb-7b9e7e8775f9, imageGroupId = d2a20a0d-6223-440b-b8b9-b7991fffd7f8, imageId = 226388c4-a506-46f3-9639-50817b33a92f), log id: 1892f616
2012-09-04 15:18:27,122 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.GetImageInfoVDSCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] FINISH, GetImageInfoVDSCommand, return: org.ovirt.engine.core.common.businessentities.DiskImage@30452dee, log id: 1892f616
2012-09-04 15:18:27,134 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.CreateSnapshotVDSCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] START, CreateSnapshotVDSCommand(storagePoolId = 520180ca-5062-4abd-a973-6246282b2812, ignoreFailoverLimit = false, compatabilityVersion = 3.1, storageDomainId = 29741863-4295-4794-bfcb-7b9e7e8775f9, imageGroupId = d2a20a0d-6223-440b-b8b9-b7991fffd7f8, imageSizeInBytes = 10737418240, volumeFormat = COW, newImageId = 3c5a3c39-f890-4f80-9fa1-7d879a5fc1d5, newImageDescription = , imageId = 226388c4-a506-46f3-9639-50817b33a92f, sourceImageGroupId = d2a20a0d-6223-440b-b8b9-b7991fffd7f8), log id: 7fe2ed14
2012-09-04 15:18:27,289 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.CreateSnapshotVDSCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] -- CreateSnapshotVDSCommand::ExecuteIrsBrokerCommand: calling 'createVolume' with two new parameters: description and UUID
2012-09-04 15:18:27,290 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.CreateSnapshotVDSCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] -- createVolume parameters:
                sdUUID=29741863-4295-4794-bfcb-7b9e7e8775f9
                spUUID=520180ca-5062-4abd-a973-6246282b2812
                imgGUID=d2a20a0d-6223-440b-b8b9-b7991fffd7f8
                size=10,737,418,240 bytes
                volFormat=COW
                volType=Sparse
                volUUID=3c5a3c39-f890-4f80-9fa1-7d879a5fc1d5
                descr=
                srcImgGUID=d2a20a0d-6223-440b-b8b9-b7991fffd7f8
                srcVolUUID=226388c4-a506-46f3-9639-50817b33a92f
                
2012-09-04 15:18:27,909 INFO  [org.ovirt.engine.core.vdsbroker.irsbroker.CreateSnapshotVDSCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] FINISH, CreateSnapshotVDSCommand, return: 3c5a3c39-f890-4f80-9fa1-7d879a5fc1d5, log id: 7fe2ed14
2012-09-04 15:18:27,958 INFO  [org.ovirt.engine.core.bll.EntityAsyncTask] (ajp-/127.0.0.1:8009-13) [6bd0a119] EntityAsyncTask::Adding EntityMultiAsyncTasks object for entity f0d67174-fa6c-4de4-9cca-69eb9cb97573
2012-09-04 15:18:27,959 INFO  [org.ovirt.engine.core.bll.EntityMultiAsyncTasks] (ajp-/127.0.0.1:8009-13) [6bd0a119] EntityMultiAsyncTasks::AttachTask: Attaching task 75cbaa24-ca3d-4465-976c-957a42fa8957 to entity f0d67174-fa6c-4de4-9cca-69eb9cb97573.
2012-09-04 15:18:27,965 INFO  [org.ovirt.engine.core.bll.tasks.AsyncTaskUtils] (ajp-/127.0.0.1:8009-13) [6bd0a119] Adding task 75cbaa24-ca3d-4465-976c-957a42fa8957 to DataBase
2012-09-04 15:18:28,022 INFO  [org.ovirt.engine.core.bll.AsyncTaskManager] (ajp-/127.0.0.1:8009-13) [6bd0a119] Adding task 75cbaa24-ca3d-4465-976c-957a42fa8957 (Parent Command TryBackToAllSnapshotsOfVm, Parameters Type org.ovirt.engine.core.common.asynctasks.AsyncTaskParameters), polling hasn't started yet..
2012-09-04 15:18:28,049 ERROR [org.ovirt.engine.core.bll.TryBackToSnapshotCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] Command org.ovirt.engine.core.bll.TryBackToSnapshotCommand throw exception: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
        at java.util.ArrayList.rangeCheck(ArrayList.java:604) [rt.jar:1.7.0_05-icedtea]
        at java.util.ArrayList.get(ArrayList.java:382) [rt.jar:1.7.0_05-icedtea]
        at org.ovirt.engine.core.bll.BaseImagesCommand.findImageForSameDrive(BaseImagesCommand.java:218) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.TryBackToSnapshotCommand.updateOldImageActive(TryBackToSnapshotCommand.java:40) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.TryBackToSnapshotCommand.ProcessOldImageFromDb(TryBackToSnapshotCommand.java:28) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CreateSnapshotCommand.executeCommand(CreateSnapshotCommand.java:61) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.TryBackToSnapshotCommand.executeCommand(TryBackToSnapshotCommand.java:56) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.ExecuteWithoutTransaction(CommandBase.java:815) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.executeActionInTransactionScope(CommandBase.java:906) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.runInTransaction(CommandBase.java:1261) [engine-bll.jar:]
        at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInRequired(TransactionSupport.java:144) [engine-utils.jar:]
        at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInScope(TransactionSupport.java:109) [engine-utils.jar:]
        at org.ovirt.engine.core.bll.CommandBase.Execute(CommandBase.java:921) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.ExecuteAction(CommandBase.java:275) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.Backend.runActionImpl(Backend.java:335) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.Backend.runInternalAction(Backend.java:592) [engine-bll.jar:]
        at sun.reflect.GeneratedMethodAccessor164.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.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:36) [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.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43) [jboss-as-ejb3.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.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation.jar:1.1.1.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.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [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.as.ejb3.component.singleton.SingletonComponentInstanceAssociationInterceptor.processInvocation(SingletonComponentInstanceAssociationInterceptor.java:53) [jboss-as-ejb3.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.as.ejb3.tx.CMTTxInterceptor.invokeInCallerTx(CMTTxInterceptor.java:201) [jboss-as-ejb3.jar:7.1.2.Final-redhat-1]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.supports(CMTTxInterceptor.java:364) [jboss-as-ejb3.jar:7.1.2.Final-redhat-1]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:193) [jboss-as-ejb3.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.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3.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.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:42) [jboss-as-ejb3.jar:7.1.2.Final-redhat-1]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [jboss-as-ejb3.jar:7.1.2.Final-redhat-1]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee.jar:7.1.2.Final-redhat-1]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee.jar:7.1.2.Final-redhat-1]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee.jar:7.1.2.Final-redhat-1]
        at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:176) [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.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:72) [jboss-as-ee.jar:7.1.2.Final-redhat-1]
        at org.ovirt.engine.core.bll.interfaces.BackendInternal$$$view9.runInternalAction(Unknown Source) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.TryBackToAllSnapshotsOfVmCommand$2.runInTransaction(TryBackToAllSnapshotsOfVmCommand.java:141) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.TryBackToAllSnapshotsOfVmCommand$2.runInTransaction(TryBackToAllSnapshotsOfVmCommand.java:130) [engine-bll.jar:]
        at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInNewTransaction(TransactionSupport.java:204) [engine-utils.jar:]
        at org.ovirt.engine.core.bll.TryBackToAllSnapshotsOfVmCommand.ExecuteVmCommand(TryBackToAllSnapshotsOfVmCommand.java:130) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.VmCommand.executeCommand(VmCommand.java:83) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.ExecuteWithoutTransaction(CommandBase.java:815) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.executeActionInTransactionScope(CommandBase.java:906) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.runInTransaction(CommandBase.java:1261) [engine-bll.jar:]
        at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInSuppressed(TransactionSupport.java:168) [engine-utils.jar:]
        at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInScope(TransactionSupport.java:107) [engine-utils.jar:]
        at org.ovirt.engine.core.bll.CommandBase.Execute(CommandBase.java:921) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.ExecuteAction(CommandBase.java:275) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.Backend.runActionImpl(Backend.java:335) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.Backend.RunAction(Backend.java:293) [engine-bll.jar:]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_05-icedtea]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar: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.GeneratedMethodAccessor7.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]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:36) [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.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43) [jboss-as-ejb3.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.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation.jar:1.1.1.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.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [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.as.ejb3.component.singleton.SingletonComponentInstanceAssociationInterceptor.processInvocation(SingletonComponentInstanceAssociationInterceptor.java:53) [jboss-as-ejb3.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.as.ejb3.tx.CMTTxInterceptor.invokeInNoTx(CMTTxInterceptor.java:210) [jboss-as-ejb3.jar:7.1.2.Final-redhat-1]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.supports(CMTTxInterceptor.java:362) [jboss-as-ejb3.jar:7.1.2.Final-redhat-1]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:193) [jboss-as-ejb3.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.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3.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.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:42) [jboss-as-ejb3.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.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [jboss-as-ejb3.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.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [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.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [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.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee.jar:7.1.2.Final-redhat-1]
        at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:176) [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.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation.jar:1.1.1.Final-redhat-1]
        at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:72) [jboss-as-ee.jar:7.1.2.Final-redhat-1]
        at org.ovirt.engine.core.common.interfaces.BackendLocal$$$view8.RunAction(Unknown Source) [engine-common.jar:]
        at org.ovirt.engine.ui.frontend.server.gwt.GenericApiGWTServiceImpl.RunAction(GenericApiGWTServiceImpl.java:120)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_05-icedtea]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar: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 com.google.gwt.rpc.server.RPC.invokeAndStreamResponse(RPC.java:196)
        at com.google.gwt.rpc.server.RpcServlet.processCall(RpcServlet.java:161)
        at com.google.gwt.rpc.server.RpcServlet.processPost(RpcServlet.java:222)
        at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:754) [jboss-servlet-api_3.0_spec.jar:1.0.1.Final-redhat-1]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec.jar:1.0.1.Final-redhat-1]
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489)
        at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.jboss.web.rewrite.RewriteValve.invoke(RewriteValve.java:466)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
        at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:505)
        at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:452)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:931)
        at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_05-icedtea]

2012-09-04 15:18:28,084 ERROR [org.ovirt.engine.core.bll.TryBackToSnapshotCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] Transaction rolled-back for command: org.ovirt.engine.core.bll.TryBackToSnapshotCommand.
2012-09-04 15:18:28,084 INFO  [org.ovirt.engine.core.utils.transaction.TransactionSupport] (ajp-/127.0.0.1:8009-13) [6bd0a119] transaction rolled back
2012-09-04 15:18:28,084 ERROR [org.ovirt.engine.core.bll.TryBackToAllSnapshotsOfVmCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] Command org.ovirt.engine.core.bll.TryBackToAllSnapshotsOfVmCommand throw Vdc Bll exception. With error message VdcBLLException: ENGINE
2012-09-04 15:18:28,087 INFO  [org.ovirt.engine.core.bll.TryBackToAllSnapshotsOfVmCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] Command [id=35b847c0-d4e8-4357-b69c-e8fa7901bac5]: Compensating CHANGED_STATUS_ONLY of org.ovirt.engine.core.common.businessentities.VmDynamic; snapshot: EntityStatusSnapshot [id=f0d67174-fa6c-4de4-9cca-69eb9cb97573, status=Down].
2012-09-04 15:18:28,100 INFO  [org.ovirt.engine.core.bll.TryBackToAllSnapshotsOfVmCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] Command [id=35b847c0-d4e8-4357-b69c-e8fa7901bac5]: Compensating NEW_ENTITY_ID of org.ovirt.engine.core.common.businessentities.Snapshot; snapshot: d2e11177-5aac-4c65-8767-56fd6eeb0b48.
2012-09-04 15:18:28,101 INFO  [org.ovirt.engine.core.bll.TryBackToAllSnapshotsOfVmCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] Command [id=35b847c0-d4e8-4357-b69c-e8fa7901bac5]: Compensating NEW_ENTITY_ID of org.ovirt.engine.core.common.businessentities.Snapshot; snapshot: 8663634a-498a-46d5-a6fc-7371b7510e73.
2012-09-04 15:18:28,113 INFO  [org.ovirt.engine.core.bll.TryBackToAllSnapshotsOfVmCommand] (ajp-/127.0.0.1:8009-13) [6bd0a119] Command [id=35b847c0-d4e8-4357-b69c-e8fa7901bac5]: Compensating CHANGED_ENTITY of org.ovirt.engine.core.common.businessentities.Snapshot; snapshot: id=8663634a-498a-46d5-a6fc-7371b7510e73.
2012-09-04 15:20:00,000 INFO  [org.ovirt.engine.core.bll.AutoRecoveryManager] (QuartzScheduler_Worker-26) Autorecovering hosts is disabled, skipping
2012-09-04 15:20:00,000 INFO  [org.ovirt.engine.core.bll.AutoRecoveryManager] (QuartzScheduler_Worker-26) Autorecovering storage domains is disabled, skipping
2012-09-04 15:25:00,001 INFO  [org.ovirt.engine.core.bll.AutoRecoveryManager] (QuartzScheduler_Worker-49) Autorecovering hosts is disabled, skipping
2012-09-04 15:25:00,001 INFO  [org.ovirt.engine.core.bll.AutoRecoveryManager] (QuartzScheduler_Worker-49) Autorecovering storage domains is disabled, skipping

Comment 1 Haim 2012-09-04 09:28:05 UTC
Created attachment 609606 [details]
engine.log

Comment 6 Liron Aravot 2012-09-06 15:20:18 UTC
no, different bug.

the bug doesn't reproduce when following the scenario.

Comment 7 Dafna Ron 2012-09-09 13:30:11 UTC
reproduced again in si17 and we no longer get the NPE. 
closing as WORKSFORME

Comment 8 Maor 2013-06-16 11:58:22 UTC
*** Bug 965998 has been marked as a duplicate of this bug. ***