Dear Jenkins community,
I am getting this error when I am trying to upgrade jenkins from 2.332. to 2.401 LTS using RPM on RHL 7
JDK: 11
com.thoughtworks.xstream.mapper.CannotResolveClassException: hudson.plugins.active_directory.ActiveDirectorySecurityRealm at com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.java:81) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:125) at com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProxyMapper.java:55) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:125) at com.thoughtworks.xstream.mapper.PackageAliasingMapper.realClass(PackageAliasingMapper.java:88) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:125) at com.thoughtworks.xstream.mapper.ClassAliasingMapper.realClass(ClassAliasingMapper.java:79) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:125) at com.thoughtworks.xstream.mapper.ArrayMapper.realClass(ArrayMapper.java:74) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:125) at com.thoughtworks.xstream.mapper.SecurityMapper.realClass(SecurityMapper.java:71) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:125) at hudson.util.XStream2$CompatibilityMapper.realClass(XStream2.java:453) at hudson.util.xstream.MapperDelegate.realClass(MapperDelegate.java:46) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:125) at com.thoughtworks.xstream.mapper.CachingMapper.realClass(CachingMapper.java:47) at hudson.util.RobustReflectionConverter.determineType(RobustReflectionConverter.java:521) at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:346) Caused: jenkins.util.xstream.CriticalXStreamException: ---- Debugging information ---- cause-exception : com.thoughtworks.xstream.mapper.CannotResolveClassException cause-message : hudson.plugins.active_directory.ActiveDirectorySecurityRealm class : hudson.model.Hudson required-type : hudson.model.Hudson converter-type : hudson.util.RobustReflectionConverter path : /hudson/securityRealm line number : 128 version : not available ------------------------------- at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:381) at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:289) at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:74) at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:72) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:68) at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:52) at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:136) at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.unmarshal(AbstractTreeMarshallingStrategy.java:32) at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1464) at hudson.util.XStream2.unmarshal(XStream2.java:231) at hudson.util.XStream2.unmarshal(XStream2.java:202) at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1441) at hudson.XmlFile.unmarshal(XmlFile.java:196) Caused: java.io.IOException: Unable to read /var/lib/jenkins/config.xml at hudson.XmlFile.unmarshal(XmlFile.java:199) at hudson.XmlFile.unmarshal(XmlFile.java:179) at jenkins.model.Jenkins.loadConfig(Jenkins.java:3320) at jenkins.model.Jenkins$12.run(Jenkins.java:3423) at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:177) at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:305) at jenkins.model.Jenkins$5.runTask(Jenkins.java:1164) at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:221) at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:120) at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:68) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829) Caused: org.jvnet.hudson.reactor.ReactorException at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:290) at jenkins.InitReactorRunner.run(InitReactorRunner.java:49) at jenkins.model.Jenkins.executeReactor(Jenkins.java:1199) at jenkins.model.Jenkins.(Jenkins.java:987) at hudson.model.Hudson.(Hudson.java:86) at hudson.model.Hudson.(Hudson.java:82) at hudson.WebAppMain$3.run(WebAppMain.java:247) Caused: hudson.util.HudsonFailedToLoad at hudson.WebAppMain$3.run(WebAppMain.java:264)