unable to read config.xml - GlobalMatrixAuthorizationStrategy

[Bryan Pearson]

I have checked the permissions on the config.xml and I am still
receiving this error message. We are using Jenkins version 1.598. I
recently rebooted it after a number of plugins were installed, so I am
not certain if any are cause of the the issue.

I get this error right after restart.

I have attempted to disable this and other plugins, but I cant determine whats wrong.

hudson.util.HudsonFailedToLoad:
org.jvnet.hudson.reactor.ReactorException: java.io.IOException: Unable
to read /var/lib/jenkins/config.xml
at hudson.WebAppMain$3.run(WebAppMain.java:237)
Caused by: org.jvnet.hudson.reactor.ReactorException:
java.io.IOException: Unable to read /var/lib/jenkins/config.xml
at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:269)
at jenkins.InitReactorRunner.run(InitReactorRunner.java:44)
at jenkins.model.Jenkins.executeReactor(Jenkins.java:914)
at jenkins.model.Jenkins.<init>(Jenkins.java:813)
at hudson.model.Hudson.<init>(Hudson.java:83)
at hudson.model.Hudson.<init>(Hudson.java:79)
at hudson.WebAppMain$3.run(WebAppMain.java:225)
Caused by: java.io.IOException: Unable to read /var/lib/jenkins/config.xml
at hudson.XmlFile.unmarshal(XmlFile.java:167)
at jenkins.model.Jenkins$16.run(Jenkins.java:2642)
at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169)
at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282)
at jenkins.model.Jenkins$7.runTask(Jenkins.java:903)
at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:210)
at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:701)
Caused by: java.lang.NoClassDefFoundError:
hudson/security/GlobalMatrixAuthorizationStrategy$DescriptorImpl
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:643)
at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1138)
at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:784)
at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1309)
at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1365)
at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1325)
at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1078)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Class.java:2459)
at java.lang.Class.getDeclaredFields(Class.java:1808)
at com.thoughtworks.xstream.mapper.AnnotationMapper.processTypes(AnnotationMapper.java:216)
at com.thoughtworks.xstream.mapper.AnnotationMapper.processAnnotations(AnnotationMapper.java:182)
at com.thoughtworks.xstream.mapper.AnnotationMapper.defaultImplementationOf(AnnotationMapper.java:141)
at com.thoughtworks.xstream.mapper.MapperWrapper.defaultImplementationOf(MapperWrapper.java:46)
at hudson.util.xstream.MapperDelegate.defaultImplementationOf(MapperDelegate.java:59)
at com.thoughtworks.xstream.mapper.MapperWrapper.defaultImplementationOf(MapperWrapper.java:46)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:54)
at hudson.util.RobustReflectionConverter.unmarshalField(RobustReflectionConverter.java:349)
at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:289)
at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:228)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:72)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:65)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:66)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:50)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:134)
at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1189)
at hudson.util.XStream2.unmarshal(XStream2.java:113)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1173)
at hudson.XmlFile.unmarshal(XmlFile.java:163)
... 9 more
Caused by: java.lang.ClassNotFoundException:
hudson.security.GlobalMatrixAuthorizationStrategy$DescriptorImpl
at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1375)
at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1325)
at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1078)
at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
... 41 more

[Matthew Hupman]

Not sure if it helps, but I ran into a very similar issue after updating the Matrix Project Plugin (https://wiki.jenkins-ci.org/display/JENKINS/Matrix+Project+Plugin).  There is a note on it 1.4.1 release about it not being compatible with older Jenkins releases.  I downgraded the plugin and an older version and my Jenkins instance starts now.  Hope that helps!

Regards,
Matt

[Bryan Pearson]

Yep, I realized that it was that plugin and decided to take the
opportunity to upgrade my Jenkins instance.
Bryan