Simulator : Error while creating a snapshot from a VM

[Meghna Kale]

Hi All,

I have been seeing an error while creating a snapshot from a VM in the
Simulator.
I faced this issue on both the versions 4.2 and 4.3.

Can anyone help me or provide pointers.

A similar NullPointer error is also thrown while creating a VM from a
personal template created from an existing VM.

Error from vmops.log :

ERROR [cloud.api.ApiServer] (31312594@qtp-24163675-2:) unhandled exception
executing api command: createVMSnapshot
java.lang.NullPointerException
        at
com.cloud.hypervisor.dao.HypervisorCapabilitiesDaoImpl.isVmSnapshotEnabled(HypervisorCapabilitiesDaoImpl.java:103)
        at
com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125)
        at
com.cloud.vm.snapshot.VMSnapshotManagerImpl.allocVMSnapshot(VMSnapshotManagerImpl.java:257)
        at
org.apache.cloudstack.api.command.user.vmsnapshot.CreateVMSnapshotCmd.create(CreateVMSnapshotCmd.java:78)
        at
com.cloud.api.ApiDispatcher.dispatchCreateCmd(ApiDispatcher.java:104)
        at com.cloud.api.ApiServer.queueCommand(ApiServer.java:461)
        at com.cloud.api.ApiServer.handleRequest(ApiServer.java:373)
        at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:305)
        at com.cloud.api.ApiServlet.doGet(ApiServlet.java:66)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
        at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401)
        at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
        at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
        at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
        at
org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
        at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
        at
org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
        at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
        at org.mortbay.jetty.Server.handle(Server.java:326)
        at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
        at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
        at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
        at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

Thanks
Meghna.