When VersionColumn plug-in is disabled and Jenkins is restarted, Jenkins throws exception and stops working after restart.

Important: Some nodes were set offline by VersionColumn plug-in when Jenkins was restarted.

Versions:

• Jenkins 1.470
• VersionColumn 0.2

Error

org.jvnet.hudson.reactor.ReactorException: hudson.util.IOException2: Unable to read C:\Jenkins\config.xml
at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:246)
at jenkins.InitReactorRunner.run(InitReactorRunner.java:43)
at jenkins.model.Jenkins.executeReactor(Jenkins.java:885)
at jenkins.model.Jenkins.<init>(Jenkins.java:790)
at hudson.model.Hudson.<init>(Hudson.java:81)
at hudson.model.Hudson.<init>(Hudson.java:77)
at hudson.WebAppMain$2.run(WebAppMain.java:217)
Caused by: hudson.util.IOException2: Unable to read C:\Jenkins\config.xml
at hudson.XmlFile.unmarshal(XmlFile.java:160)
at jenkins.model.Jenkins$15.run(Jenkins.java:2456)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:146)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259)
at jenkins.model.Jenkins$7.runTask(Jenkins.java:874)
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$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: com.thoughtworks.xstream.converters.ConversionException: Cannot load java class hudson.plugin.versioncolumn.Messages : hudson.plugin.versioncolumn.Messages
---- Debugging information ----
message : Cannot load java class hudson.plugin.versioncolumn.Messages
cause-exception : java.lang.ClassNotFoundException
cause-message : hudson.plugin.versioncolumn.Messages
class : hudson.model.Hudson
required-type : java.lang.Class
path : /hudson/slaves/slave[4]/temporaryOfflineCause/description/holder/owner
line number : 349
-------------------------------
at com.thoughtworks.xstream.converters.extended.JavaClassConverter.fromString(JavaClassConverter.java:52)
at com.thoughtworks.xstream.converters.SingleValueConverterWrapper.fromString(SingleValueConverterWrapper.java:41)
at com.thoughtworks.xstream.converters.SingleValueConverterWrapper.unmarshal(SingleValueConverterWrapper.java:49)
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 hudson.util.RobustReflectionConverter.unmarshalField(RobustReflectionConverter.java:292)
at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:234)
at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:181)
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 hudson.util.RobustReflectionConverter.unmarshalField(RobustReflectionConverter.java:292)
at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:234)
at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:181)
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 hudson.util.RobustReflectionConverter.unmarshalField(RobustReflectionConverter.java:292)
at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:234)
at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:181)
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 hudson.util.RobustReflectionConverter.unmarshalField(RobustReflectionConverter.java:292)
at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:234)
at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:181)
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.converters.collections.AbstractCollectionConverter.readItem(AbstractCollectionConverter.java:71)
at hudson.util.RobustCollectionConverter.populateCollection(RobustCollectionConverter.java:85)
at com.thoughtworks.xstream.converters.collections.CollectionConverter.unmarshal(CollectionConverter.java:61)
at hudson.util.RobustCollectionConverter.unmarshal(RobustCollectionConverter.java:76)
at hudson.slaves.NodeList$ConverterImpl.unmarshal(NodeList.java:161)
at hudson.util.XStream2$AssociatedConverterImpl.unmarshal(XStream2.java:297)
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 hudson.util.RobustReflectionConverter.unmarshalField(RobustReflectionConverter.java:292)
at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:234)
at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:181)
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:93)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:912)
at hudson.XmlFile.unmarshal(XmlFile.java:156)
... 9 more
Caused by: java.lang.ClassNotFoundException: hudson.plugin.versioncolumn.Messages
at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:782)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at com.thoughtworks.xstream.core.util.ClassLoaderReference.loadClass(ClassLoaderReference.java:31)
at com.thoughtworks.xstream.converters.extended.JavaClassConverter.loadClass(JavaClassConverter.java:73)
at com.thoughtworks.xstream.converters.extended.JavaClassConverter.fromString(JavaClassConverter.java:50)
... 61 more