com.thoughtworks.xstream.converters.reflection.NonExistentFieldException: No such field hudson.plugins.vmware.Root.allocationLock
	at com.thoughtworks.xstream.converters.reflection.FieldDictionary.field(FieldDictionary.java:106)
	at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.getFieldType(PureJavaReflectionProvider.java:152)
	at hudson.util.RobustReflectionConverter.determineType(RobustReflectionConverter.java:356)
	at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:229)
	at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:180)
	at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:82)
	at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:63)
	at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:76)
	at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:60)
	at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:137)
	at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:33)
	at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:926)
	at hudson.util.XStream2.unmarshal(XStream2.java:80)
	at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:912)
	at hudson.XmlFile.unmarshal(XmlFile.java:148)
	at hudson.plugins.vmware.Root.load(Root.java:72)
	at hudson.plugins.vmware.Root.<init>(Root.java:54)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
	at java.lang.Class.newInstance0(Class.java:355)
	at java.lang.Class.newInstance(Class.java:308)
	at net.java.sezpoz.IndexItem.instance(IndexItem.java:181)
	at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:180)
	at hudson.ExtensionFinder._find(ExtensionFinder.java:94)
	at hudson.ExtensionList.load(ExtensionList.java:261)
	at hudson.ExtensionList.ensureLoaded(ExtensionList.java:218)
	at hudson.ExtensionList.iterator(ExtensionList.java:115)
	at hudson.ExtensionList.get(ExtensionList.java:106)
	at hudson.plugins.vmware.Root.get(Root.java:232)
	at hudson.plugins.vmware.InitializerOnJobsLoaded.initialize(InitializerOnJobsLoaded.java:22)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at hudson.init.InitializerFinder.invoke(InitializerFinder.java:110)
	at hudson.init.InitializerFinder$TaskImpl.run(InitializerFinder.java:174)
	at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259)
	at hudson.model.Hudson$4.runTask(Hudson.java:734)
	at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187)
	at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)
Aug 29, 2011 9:34:05 AM hudson.triggers.SafeTimerTask run
SEVERE: Timer task hudson.plugins.vmware.LoadStatistics$LoadStatisticsUpdater@4dd2822f failed
java.lang.NullPointerException
	at hudson.plugins.vmware.staticpool.StaticMachinePool.updateStatistics(StaticMachinePool.java:214)
	at hudson.plugins.vmware.MachineCenter.updateStatistics(MachineCenter.java:109)
	at hudson.plugins.vmware.Root.updateStatistics(Root.java:218)
	at hudson.plugins.vmware.LoadStatistics$LoadStatisticsUpdater.doRun(LoadStatistics.java:80)
	at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
	at java.util.TimerThread.mainLoop(Timer.java:512)
	at java.util.TimerThread.run(Timer.java:462)