Bug 770656 - There is no validation for storage availability during AddVmFromScratchCommand which leads to NullPointerException
Summary: There is no validation for storage availability during AddVmFromScratchComman...
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: oVirt
Classification: Retired
Component: ovirt-engine-core
Version: unspecified
Hardware: Unspecified
OS: Unspecified
unspecified
medium
Target Milestone: ---
: 3.3.4
Assignee: Greg Padgett
QA Contact:
URL:
Whiteboard: storage
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-12-28 09:12 UTC by Rami Vaknin
Modified: 2016-02-10 16:47 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-12-12 07:36:31 UTC
oVirt Team: Storage

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Description Rami Vaknin 2011-12-28 09:12:49 UTC 
Environment:
Devel env, last commit's hash: 7a5e62ea22604dee949de6b85483ab44fc741f91, jboss 7

Scenario:
I added new vm with disk using rest-api request while there is no data storage domain available in the data center.

I used the following create request:

http_method://IP:Port/api/vms

<vm><name>vm_name</name><description></description><type>desktop</type><memory>1073741824</memory><os type='unassigned'><boot dev="hd"/></os><cpu><topology sockets='1' cores='1'/></cpu><cluster id='some_id'><id>some_id</id></cluster><template id='00000000-0000-0000-0000-000000000000'/><display><type>vnc</type><monitors>1</monitors></display><disks><disk><size>2147483648</size><type>data</type><interface>virtio</interface><format>cow</format></disk></disks></vm>

The response was: "Operation Failed [can do action general failure]", and the following NullPointerException appears in the engine.log:


13:52:54,765 ERROR [org.ovirt.engine.core.bll.AddVmFromScratchCommand] (http--0.0.0.0-8080-6) Error during CanDoActionFailure.: java.lang.NullPointerException

    at org.ovirt.engine.core.bll.ImagesHandler.CheckImageConfiguration(ImagesHandler.java:163) [engine-bll.jar:]
    at org.ovirt.engine.core.bll.ImagesHandler.CheckImagesConfiguration(ImagesHandler.java:180) [engine-bll.jar:]
    at org.ovirt.engine.core.bll.AddVmFromScratchCommand.canDoAction(AddVmFromScratchCommand.java:151) [engine-bll.jar:]
    at org.ovirt.engine.core.bll.CommandBase.InternalCanDoAction(CommandBase.java:385) [engine-bll.jar:]
    at org.ovirt.engine.core.bll.CommandBase.ExecuteAction(CommandBase.java:205) [engine-bll.jar:]
    at org.ovirt.engine.core.bll.Backend.runActionImpl(Backend.java:256) [engine-bll.jar:]
    at org.ovirt.engine.core.bll.Backend.RunAction(Backend.java:238) [engine-bll.jar:]
    at sun.reflect.!GeneratedMethodAccessor118.invoke(Unknown Source) [:1.6.0_22]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_22]
    at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_22]
    at org.jboss.as.ee.component.ManagedReferenceMethodInterceptorFactory$ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptorFactory.java:72) [jboss-as-ee-7.1.0.Beta1b.jar:]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:374) [jboss-invocation-1.1.1.Final.jar:]
    at org.ovirt.engine.core.utils.ThreadLocalSessionCleanerInterceptor.injectWebContextToThreadLocal(ThreadLocalSessionCleanerInterceptor.java:11) [utils-3.0.0-0001.jar:]
    at sun.reflect.!GeneratedMethodAccessor4.invoke(Unknown Source) [:1.6.0_22]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_22]
    at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_22]
    at org.jboss.as.ee.component.ManagedReferenceLifecycleMethodInterceptorFactory$ManagedReferenceLifecycleMethodInterceptor.processInvocation(ManagedReferenceLifecycleMethodInterceptorFactory.java:123) [jboss-as-ee-7.1.0.Beta1b.jar

:]

    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.1.0.Beta1b.jar:]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.1.0.Beta1b.jar:]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.as.ejb3.component.singleton.SingletonComponentInstanceAssociationInterceptor.processInvocation(SingletonComponentInstanceAssociationInterceptor.java:53) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInNoTx(CMTTxInterceptor.java:221) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
    at org.jboss.as.ejb3.tx.CMTTxInterceptor.supports(CMTTxInterceptor.java:367) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
    at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:205) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:44) [jboss-as-ee-7.1.0.Beta1b.jar:]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:55) [jboss-as-ejb3-7.1.0.Beta1b.jar:]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee-7.1.0.Beta1b.jar:]
    at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:173) [jboss-as-ee-7.1.0.Beta1b.jar:]
    at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:]
    at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:72) [jboss-as-ee-7.1.0.Beta1b.jar:]
    at org.ovirt.engine.core.common.interfaces.BackendLocal$$$view8.RunAction(Unknown Source) [engine-common.jar:]
    at sun.reflect.!GeneratedMethodAccessor117.invoke(Unknown Source) [:1.6.0_22]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_22]
    at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_22]
    at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307) [spring-aop-2.5.6.SEC02.jar:]
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:198) [spring-aop-2.5.6.SEC02.jar:]
    at $Proxy34.RunAction(Unknown Source)   at org.ovirt.engine.api.restapi.resource.AbstractBackendCollectionResource.performCreation(AbstractBackendCollectionResource.java:80)
    at org.ovirt.engine.api.restapi.resource.BackendVmsResource.addVmFromScratch(BackendVmsResource.java:153)
    at org.ovirt.engine.api.restapi.resource.BackendVmsResource.add(BackendVmsResource.java:96)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_22]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [:1.6.0_22]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [:1.6.0_22]
    at java.lang.reflect.Method.invoke(Method.java:616) [:1.6.0_22]
    at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:140) [resteasy-jaxrs-2.2.3.GA.jar:]
    at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:255) [resteasy-jaxrs-2.2.3.GA.jar:]
    at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:220) [resteasy-jaxrs-2.2.3.GA.jar:]
    at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:209) [resteasy-jaxrs-2.2.3.GA.jar:]
    at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:519) [resteasy-jaxrs-2.2.3.GA.jar:]
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:496) [resteasy-jaxrs-2.2.3.GA.jar:]
    at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.2.3.GA.jar:]
    at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.2.3.GA.jar:]
    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.2.3.GA.jar:]
    at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.2.3.GA.jar:]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:]
    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.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:151)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
    at java.lang.Thread.run(Thread.java:679) [:1.6.0_22]
Comment 1 Itamar Heim 2012-06-10 09:00:09 UTC 
rami - care to check if still relevant?

thanks,
   Itamar
Comment 2 Rami Vaknin 2012-06-13 08:41:35 UTC 
There is still NullPointerException (different) in that scenario, tested on devel env, last commit's hash: 0f298ab06222be0121faa9e2b400f59ddec22d35


2012-06-13 11:38:35,854 ERROR [org.ovirt.engine.core.bll.AddVmFromScratchCommand] (http--0.0.0.0-8080-7) [43754b6] Error during CanDoActionFailure.: java.lang.NullPointerException
        at org.ovirt.engine.core.bll.ImagesHandler.fillImagesMapBasedOnTemplate(ImagesHandler.java:66) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.AddVmCommand.fillDestMap(AddVmCommand.java:398) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.AddVmCommand.buildAndCheckDestStorageDomains(AddVmCommand.java:349) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.AddVmCommand.canDoAction(AddVmCommand.java:286) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.AddVmFromScratchCommand.canDoAction(AddVmFromScratchCommand.java:140) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.InternalCanDoAction(CommandBase.java:487) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.CommandBase.ExecuteAction(CommandBase.java:262) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.Backend.runActionImpl(Backend.java:336) [engine-bll.jar:]
        at org.ovirt.engine.core.bll.Backend.RunAction(Backend.java:294) [engine-bll.jar:]
        at sun.reflect.GeneratedMethodAccessor148.invoke(Unknown Source) [:1.6.0_22]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.6.0_22]
        at java.lang.reflect.Method.invoke(Method.java:616) [rt.jar:1.6.0_22]
        at org.jboss.as.ee.component.ManagedReferenceMethodInterceptorFactory$ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptorFactory.java:72) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:374) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.ovirt.engine.core.utils.ThreadLocalSessionCleanerInterceptor.injectWebContextToThreadLocal(ThreadLocalSessionCleanerInterceptor.java:11) [engine-utils.jar:]
        at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source) [:1.6.0_22]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.6.0_22]
        at java.lang.reflect.Method.invoke(Method.java:616) [rt.jar:1.6.0_22]
        at org.jboss.as.ee.component.ManagedReferenceLifecycleMethodInterceptorFactory$ManagedReferenceLifecycleMethodInterceptor.processInvocation(ManagedReferenceLifecycleMethodInterceptorFactory.java:123) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:36) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.as.ejb3.component.singleton.SingletonComponentInstanceAssociationInterceptor.processInvocation(SingletonComponentInstanceAssociationInterceptor.java:53) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInNoTx(CMTTxInterceptor.java:211) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.supports(CMTTxInterceptor.java:363) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:194) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.as.ee.component.ViewDescription$1.processInvocation(ViewDescription.java:173) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
        at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
        at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:72) [jboss-as-ee-7.1.1.Final.jar:7.1.1.Final]
        at org.ovirt.engine.core.common.interfaces.BackendLocal$$$view11.RunAction(Unknown Source) [engine-common.jar:]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_22]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.6.0_22]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.6.0_22]
        at java.lang.reflect.Method.invoke(Method.java:616) [rt.jar:1.6.0_22]
        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307) [spring-aop-2.5.6.SEC02.jar:2.5.6.SEC02]
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:198) [spring-aop-2.5.6.SEC02.jar:2.5.6.SEC02]
        at $Proxy34.RunAction(Unknown Source)   at org.ovirt.engine.api.restapi.resource.AbstractBackendCollectionResource.performCreation(AbstractBackendCollectionResource.java:93)
        at org.ovirt.engine.api.restapi.resource.AbstractBackendCollectionResource.performCreation(AbstractBackendCollectionResource.java:132)
        at org.ovirt.engine.api.restapi.resource.BackendVmsResource.addVmFromScratch(BackendVmsResource.java:258)
        at org.ovirt.engine.api.restapi.resource.BackendVmsResource.add(BackendVmsResource.java:129)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_22]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.6.0_22]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.6.0_22]
        at java.lang.reflect.Method.invoke(Method.java:616) [rt.jar:1.6.0_22]
        at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:155) [resteasy-jaxrs-2.3.2.Final.jar:]
        at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) [resteasy-jaxrs-2.3.2.Final.jar:]
        at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) [resteasy-jaxrs-2.3.2.Final.jar:]
        at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) [resteasy-jaxrs-2.3.2.Final.jar:]
        at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) [resteasy-jaxrs-2.3.2.Final.jar:]
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) [resteasy-jaxrs-2.3.2.Final.jar:]
        at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.3.2.Final.jar:]
        at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.2.Final.jar:]
        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.2.Final.jar:]
        at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.2.Final.jar:]
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
        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.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.http11.Http11Processor.process(Http11Processor.java:877)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
        at java.lang.Thread.run(Thread.java:679) [rt.jar:1.6.0_22]

2012-06-13 11:38:35,996 ERROR [org.ovirt.engine.api.restapi.resource.AbstractBackendResource] (http--0.0.0.0-8080-7) Operation Failed: [- General command validation failure.]
Comment 3 Rami Vaknin 2012-06-13 08:45:18 UTC 
Simple code which reproduces the NPE (replace constants with values):

#! /usr/bin/python

from ovirtsdk.api import API
from ovirtsdk.xml import params

api = API(url=URL, username=USERNAME, password=PASSWORD)

try:
    if api.vms.add( params.VM(name='my_vm',
                             memory=2147483648,
                             cluster=api.clusters.get(CLUSTER_NAME),
                             template=api.templates.get('Blank')) ):
        print 'vm created successfully'
except Exception as e:
    print 'Failed to create vm:\n%s' % str(e)
Comment 4 Itamar Heim 2012-12-12 07:36:31 UTC 
Closing old bugs. If this issue is still relevant/important in current version, please re-open the bug.
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