[CLOUDSTACK-6905] NPE XenServerGuru.java:95 when remove the nic from the vm in Stopped state

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 4.4.0
• Fix Version/s: 4.5.0
• Security Level: Public (Anyone can view this level - this is the default.)
• Assignee: Amogh Vasekar
• Reporter: Alena Prokharchyk
• Created: 12/Jun/14 20:51
• Updated: 15/Aug/14 22:14
• Resolved: 15/Aug/14 22:13

Description

Steps to reproduce:

1) deploy vm with 1 network in Xen environment. Stop it
2) attach nic to the stopped vm from another network
3) Try to delete the nic. Following NPE happens:

java.lang.NullPointerException
at com.cloud.hypervisor.XenServerGuru.implement(XenServerGuru.java:95)
at com.cloud.vm.VirtualMachineManagerImpl.orchestrateRemoveNicFromVm(VirtualMachineManagerImpl.java:3554)
at com.cloud.vm.VirtualMachineManagerImpl.orchestrateRemoveNicFromVm(VirtualMachineManagerImpl.java:5280)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.cloud.vm.VmWorkJobHandlerProxy.handleVmWorkJob(VmWorkJobHandlerProxy.java:107)
at com.cloud.vm.VirtualMachineManagerImpl.handleVmWorkJob(VirtualMachineManagerImpl.java:5325)
at com.cloud.vm.VmWorkJobDispatcher.runJob(VmWorkJobDispatcher.java:102)
at org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.runInContext(AsyncJobManagerImpl.java:503)
at org.apache.cloudstack.managed.context.ManagedContextRunnable$1.run(ManagedContextRunnable.java:49)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
at org.apache.cloudstack.managed.context.ManagedContextRunnable.run(ManagedContextRunnable.java:46)
at org.apache.cloudstack.framework.jobs.impl.AsyncJobManagerImpl$5.run(AsyncJobManagerImpl.java:460)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)

Issue Links

• is cloned by: CLOUDSTACK-7356 CLONE - NPE XenServerGuru.java:95 when remove the nic from the vm in Stopped state