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Bug
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Resolution: Not A Defect
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Minor
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Upgraded from 2.346.2 to 2.375.1
Hi
When I upgraded jenkins to 2.375.1 from 2.346.2. I get the error below on the GUI and I am not able to login. I installed Java 11 as well.
com.thoughtworks.xstream.mapper.CannotResolveClassException: org.jenkinsci.plugins.saml.SamlSecurityRealm 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:413) 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:523) at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:348) Caused: jenkins.util.xstream.CriticalXStreamException: ---- Debugging information ---- cause-exception : com.thoughtworks.xstream.mapper.CannotResolveClassException cause-message : org.jenkinsci.plugins.saml.SamlSecurityRealm class : hudson.model.Hudson required-type : hudson.model.Hudson converter-type : hudson.util.RobustReflectionConverter path : /hudson/securityRealm line number : 16 version : not available ------------------------------- at hudson.util.RobustReflectionConverter.doUnmarshal(RobustReflectionConverter.java:383) at hudson.util.RobustReflectionConverter.unmarshal(RobustReflectionConverter.java:291) 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:1421) at hudson.util.XStream2.unmarshal(XStream2.java:190) at hudson.util.XStream2.unmarshal(XStream2.java:161) at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:1399) 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:3299) at jenkins.model.Jenkins$12.run(Jenkins.java:3401) at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:177) at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:305) at jenkins.model.Jenkins$5.runTask(Jenkins.java:1161) 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$1.run(ImpersonatingExecutorService.java:70) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$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:1196) at jenkins.model.Jenkins.<init>(Jenkins.java:986) at hudson.model.Hudson.<init>(Hudson.java:86) at hudson.model.Hudson.<init>(Hudson.java:82) at hudson.WebAppMain$3.run(WebAppMain.java:247) Caused: hudson.util.HudsonFailedToLoad at hudson.WebAppMain$3.run(WebAppMain.java:264)
[root@gwu-jenkins-master-stage-10-82-130-114 ~]# update-alternatives --config javaThere are 2 programs which provide 'java'. Selection Command
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* 1 java-1.8.0-openjdk.x86_64 (/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.342.b07-1.amzn2.0.1.x86_64/jre/bin/java)
+ 2 java-11-openjdk.x86_64 (/usr/lib/jvm/java-11-openjdk-11.0.16.0.8-1.amzn2.0.1.x86_64/bin/java)
the error is pretty clear, the class is not found, so the plugin has failed to load for some reason. You have to check the Jenkins start logs, should be an error message telling you why the SAML plugin is not loaded, it would probably be a dependencies issue.