Jenkins build log

Jenkins build log

SEVERE: Timer task hudson.model.LoadStatistics$LoadStatisticsUpdater@4c786d54 failed
java.lang.ExceptionInInitializerError
        at hudson.model.OverallLoadStatistics.computeTotalExecutors(OverallLoadStatistics.java:63)
        at hudson.model.LoadStatistics.updateExecutorCounts(LoadStatistics.java:188)
        at hudson.model.LoadStatistics$LoadStatisticsUpdater.doRun(LoadStatistics.java:226)
        at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
        at java.util.TimerThread.mainLoop(Timer.java:555)
        at java.util.TimerThread.run(Timer.java:505)
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
        at com.thoughtworks.xstream.core.util.OrderRetainingMap.entrySet(OrderRetainingMap.java:77)
        at java.util.HashMap.putMapEntries(HashMap.java:511)
        at java.util.HashMap.putAll(HashMap.java:784)
        at com.thoughtworks.xstream.core.util.OrderRetainingMap.<init>(OrderRetainingMap.java:36)
        at com.thoughtworks.xstream.converters.reflection.FieldDictionary.buildMap(FieldDictionary.java:135)
        at com.thoughtworks.xstream.converters.reflection.FieldDictionary.fieldsFor(FieldDictionary.java:76)
        at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaRef
lectionProvider.java:127)
        at hudson.util.RobustReflectionConverter.doMarshal(RobustReflectionConverter.java:143)
        at hudson.util.RobustReflectionConverter.marshal(RobustReflectionConverter.java:102)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller$1.convertAnother(AbstractReferenceMarshaller.java:8
8)
        at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConve
rter.java:64)
        at hudson.util.DescribableList$ConverterImpl.marshal(DescribableList.java:259)
        at com.thoughtworks.xstream.core.AbstractReferenceMarshaller.convert(AbstractReferenceMarshaller.java:69)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:58)
        at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:43)
        at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:82)
        at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:37
)
        at com.thoughtworks.xstream.XStream.marshal(XStream.java:898)
        at com.thoughtworks.xstream.XStream.marshal(XStream.java:887)
        at com.thoughtworks.xstream.XStream.toXML(XStream.java:860)
        at hudson.XmlFile.write(XmlFile.java:183)
        at hudson.model.ComputerSet$1.save(ComputerSet.java:74)
        at hudson.util.PersistedList.onModified(PersistedList.java:167)
        at hudson.util.PersistedList.replaceBy(PersistedList.java:79)
        at hudson.model.ComputerSet.<clinit>(ComputerSet.java:418)
        ... 6 more

Jan 21, 2015 5:37:17 PM hudson.triggers.SafeTimerTask run
SEVERE: Timer task hudson.triggers.Trigger$2@573ea468 failed
java.lang.NoClassDefFoundError: Could not initialize class hudson.model.ComputerSet
        at hudson.triggers.Trigger$2.doRun(Trigger.java:305)
        at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
        at java.util.TimerThread.mainLoop(Timer.java:555)
        at java.util.TimerThread.run(Timer.java:505)

Jan 21, 2015 5:37:21 PM hudson.triggers.SafeTimerTask run
SEVERE: Timer task hudson.model.LoadStatistics$LoadStatisticsUpdater@4c786d54 failed
java.lang.NoClassDefFoundError: Could not initialize class hudson.model.ComputerSet
        at hudson.model.OverallLoadStatistics.computeTotalExecutors(OverallLoadStatistics.java:63)
        at hudson.model.LoadStatistics.updateExecutorCounts(LoadStatistics.java:188)
        at hudson.model.LoadStatistics$LoadStatisticsUpdater.doRun(LoadStatistics.java:226)
        at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
        at java.util.TimerThread.mainLoop(Timer.java:555)
        at java.util.TimerThread.run(Timer.java:505)