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  1. Jenkins
  2. JENKINS-44200

Failed to scout hudson.plugins.cobertura.MavenCoberturaPublisher

    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: Minor Minor
    • cobertura-plugin
    • None
    • Jenkins 2.59

      After upgrading Jenkins from 2.58 to 2.59 I got the following trace in the log (the plugin still seems to be working though):

      Failed to scout hudson.plugins.cobertura.MavenCoberturaPublisher
      java.lang.ClassNotFoundException: hudson.maven.MavenReporter
      	at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
      	at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
      	at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
      	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
      Caused: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
      	at java.lang.ClassLoader.defineClass1(Native Method)
      	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
      	at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)
      	at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)
      	at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)
      	at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)
      	at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
      	at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:498)
      	at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)
      	at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)
      	at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)
      	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
      	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
      	at net.java.sezpoz.IndexItem.element(IndexItem.java:134)
      Caused: java.lang.InstantiationException
      	at net.java.sezpoz.IndexItem.element(IndexItem.java:146)
      	at hudson.ExtensionFinder$Sezpoz.scout(ExtensionFinder.java:656)
      	at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:471)
      	at hudson.ExtensionList.load(ExtensionList.java:365)
      	at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)
      	at hudson.ExtensionList.getComponents(ExtensionList.java:168)
      	at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1119)
      	at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)
      	at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)
      	at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)
      	at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      	at java.lang.Thread.run(Thread.java:745)
      
      Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher
      java.lang.ClassNotFoundException: hudson.maven.MavenReporter
      	at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
      	at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
      	at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
      	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
      Caused: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
      	at java.lang.ClassLoader.defineClass1(Native Method)
      	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
      	at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)
      	at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)
      	at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)
      	at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)
      	at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
      	at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:498)
      	at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)
      	at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)
      	at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)
      	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
      	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
      	at net.java.sezpoz.IndexItem.element(IndexItem.java:134)
      Caused: java.lang.InstantiationException
      	at net.java.sezpoz.IndexItem.element(IndexItem.java:146)
      	at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:620)
      	at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)
      	at hudson.ExtensionFinder$GuiceFinder.<init>(ExtensionFinder.java:257)
      	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
      	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
      	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
      	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
      	at java.lang.Class.newInstance(Class.java:442)
      	at net.java.sezpoz.IndexItem.instance(IndexItem.java:181)
      	at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:634)
      	at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)
      	at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:477)
      	at hudson.ExtensionList.load(ExtensionList.java:365)
      	at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)
      	at hudson.ExtensionList.getComponents(ExtensionList.java:168)
      	at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1119)
      	at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)
      	at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)
      	at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)
      	at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      	at java.lang.Thread.run(Thread.java:745)
      

      (The failed to load trace repeats a few more times)

          [JENKINS-44200] Failed to scout hudson.plugins.cobertura.MavenCoberturaPublisher

          Alex Taylor added a comment -

          olivergondza Is this just a dependency issue from the pom.xml file?

           

          If that is all this is then I would be happy to make those changes but I am not 100% sure with that stacktrace

          Alex Taylor added a comment - olivergondza Is this just a dependency issue from the pom.xml file?   If that is all this is then I would be happy to make those changes but I am not 100% sure with that stacktrace

          Egg MacGuffin added a comment - - edited

          I can reproduce this issue with Jenkins 2.70 on an up-to-date Arch Linux host. My procedure for reproducing this issue is:

          1. Completely reset Jenkins. Blow away all plugins, job configurations, etc.
          2. Start Jenkins and proceed through the first-time set-up procedure. Create a user, and don't install any of the suggested plug-ins.
          3. Install the cobertura plug-in, and restart Jenkins.

          My procedure for completely resetting Jenkins in step 1 is:

          systemctl stop jenkins
          rm -rf /var/lib/jenkins/*
          systemctl start jenkin

          My procedure for installing the cobertura plug-in in step 3 is:

          ssh localhost install-plugin cobertura
          ssh localhost safe-restart
          

          Here's the plugins that are installed after step 3:

          $ ssh localhost list-plugins
          Warning: Permanently added '[localhost]:30354' (RSA) to the list of known hosts.
          bouncycastle-api bouncycastle API Plugin 2.16.1
          cobertura Cobertura Plugin 1.10
          

          Here's some log output from after step 3:

          $ journalctl -u jenkins
          Jul 18 11:20:50 beech jenkins[14681]: Jul 18, 2017 11:20:50 AM hudson.ExtensionFinder$Sezpoz scout                                    Jul 18 11:20:50 beech jenkins[14681]: WARNING: Failed to scout hudson.plugins.cobertura.MavenCoberturaPublisher                       
          Jul 18 11:20:50 beech jenkins[14681]: java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter    Jul 18 11:20:50 beech jenkins[14681]:         at net.java.sezpoz.IndexItem.element(IndexItem.java:146)                                
          Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ExtensionFinder$Sezpoz.scout(ExtensionFinder.java:656)                        Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:473)          
          Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ExtensionList.load(ExtensionList.java:365)                                    Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)                            
          Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ExtensionList.getComponents(ExtensionList.java:168)                           Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)                   
          Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)                    Jul 18 11:20:50 beech jenkins[14681]:         at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:1
          04)                                                                                                                                   Jul 18 11:20:50 beech jenkins[14681]:         at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)                             
          Jul 18 11:20:50 beech jenkins[14681]:         at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)                          Jul 18 11:20:50 beech jenkins[14681]:         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)      
          Jul 18 11:20:50 beech jenkins[14681]:         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)      Jul 18 11:20:50 beech jenkins[14681]:         at java.lang.Thread.run(Thread.java:748)                                                
          Jul 18 11:20:50 beech jenkins[14681]: Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter                           
          Jul 18 11:20:50 beech jenkins[14681]:         at java.lang.ClassLoader.defineClass1(Native Method)                                    
          Jul 18 11:20:50 beech jenkins[14681]:         at java.lang.ClassLoader.defineClass(ClassLoader.java:763)                              
          Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)
          Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrateg
          y.java:844)
          Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)
          Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)
          Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
          Jul 18 11:20:50 beech jenkins[14681]:         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          Jul 18 11:20:50 beech jenkins[14681]:         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
          Jul 18 11:20:50 beech jenkins[14681]:         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          Jul 18 11:20:50 beech jenkins[14681]:         at java.lang.reflect.Method.invoke(Method.java:498)
          Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)
          Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)
          Jul 18 11:20:50 beech jenkins[14681]:         at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1861)
          Jul 18 11:20:50 beech jenkins[14681]:         at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
          Jul 18 11:20:50 beech jenkins[14681]:         at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
          Jul 18 11:20:50 beech jenkins[14681]:         at net.java.sezpoz.IndexItem.element(IndexItem.java:134)
          Jul 18 11:20:50 beech jenkins[14681]:         ... 13 more
          

          I see a similar error in a more full-blown deployment, too, with dozens of plug-ins installed. In a more full-blown deployment, disabling the cobertura plugin prevents this error from being logged.

          Egg MacGuffin added a comment - - edited I can reproduce this issue with Jenkins 2.70 on an up-to-date Arch Linux host. My procedure for reproducing this issue is: Completely reset Jenkins. Blow away all plugins, job configurations, etc. Start Jenkins and proceed through the first-time set-up procedure. Create a user, and don't install any of the suggested plug-ins. Install the cobertura plug-in, and restart Jenkins. My procedure for completely resetting Jenkins in step 1 is: systemctl stop jenkins rm -rf / var /lib/jenkins/* systemctl start jenkin My procedure for installing the cobertura plug-in in step 3 is: ssh localhost install-plugin cobertura ssh localhost safe-restart Here's the plugins that are installed after step 3: $ ssh localhost list-plugins Warning: Permanently added '[localhost]:30354' (RSA) to the list of known hosts. bouncycastle-api bouncycastle API Plugin 2.16.1 cobertura Cobertura Plugin 1.10 Here's some log output from after step 3: $ journalctl -u jenkins Jul 18 11:20:50 beech jenkins[14681]: Jul 18, 2017 11:20:50 AM hudson.ExtensionFinder$Sezpoz scout                                    Jul 18 11:20:50 beech jenkins[14681]: WARNING: Failed to scout hudson.plugins.cobertura.MavenCoberturaPublisher                        Jul 18 11:20:50 beech jenkins[14681]: java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter    Jul 18 11:20:50 beech jenkins[14681]:         at net.java.sezpoz.IndexItem.element(IndexItem.java:146)                                 Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ExtensionFinder$Sezpoz.scout(ExtensionFinder.java:656)                        Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:473)           Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ExtensionList.load(ExtensionList.java:365)                                    Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)                             Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ExtensionList.getComponents(ExtensionList.java:168)                           Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)                    Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)                    Jul 18 11:20:50 beech jenkins[14681]:         at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:1 04)                                                                                                                                   Jul 18 11:20:50 beech jenkins[14681]:         at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)                              Jul 18 11:20:50 beech jenkins[14681]:         at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)                          Jul 18 11:20:50 beech jenkins[14681]:         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)       Jul 18 11:20:50 beech jenkins[14681]:         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)      Jul 18 11:20:50 beech jenkins[14681]:         at java.lang. Thread .run( Thread .java:748)                                                 Jul 18 11:20:50 beech jenkins[14681]: Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter                            Jul 18 11:20:50 beech jenkins[14681]:         at java.lang. ClassLoader .defineClass1(Native Method)                                     Jul 18 11:20:50 beech jenkins[14681]:         at java.lang. ClassLoader .defineClass( ClassLoader .java:763)                               Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140) Jul 18 11:20:50 beech jenkins[14681]:         at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrateg y.java:844) Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311) Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364) Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327) Jul 18 11:20:50 beech jenkins[14681]:         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) Jul 18 11:20:50 beech jenkins[14681]:         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) Jul 18 11:20:50 beech jenkins[14681]:         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) Jul 18 11:20:50 beech jenkins[14681]:         at java.lang.reflect.Method.invoke(Method.java:498) Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44) Jul 18 11:20:50 beech jenkins[14681]:         at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81) Jul 18 11:20:50 beech jenkins[14681]:         at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1861) Jul 18 11:20:50 beech jenkins[14681]:         at java.lang. ClassLoader .loadClass( ClassLoader .java:424) Jul 18 11:20:50 beech jenkins[14681]:         at java.lang. ClassLoader .loadClass( ClassLoader .java:357) Jul 18 11:20:50 beech jenkins[14681]:         at net.java.sezpoz.IndexItem.element(IndexItem.java:134) Jul 18 11:20:50 beech jenkins[14681]:         ... 13 more I see a similar error in a more full-blown deployment, too, with dozens of plug-ins installed. In a more full-blown deployment, disabling the cobertura plugin prevents this error from being logged.

          Same problem since cobertura plugin installed:

          Aug 28, 2017 9:16:16 AM hudson.ExtensionFinder$Sezpoz scout
          WARNING: Failed to scout hudson.plugins.cobertura.MavenCoberturaPublisher
          java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
              at net.java.sezpoz.IndexItem.element(IndexItem.java:146)
              at hudson.ExtensionFinder$Sezpoz.scout(ExtensionFinder.java:656)
              at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:471)
              at hudson.ExtensionList.load(ExtensionList.java:365)
              at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)
              at hudson.ExtensionList.getComponents(ExtensionList.java:168)
              at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)
              at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)
              at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)
              at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)
              at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
              at java.lang.Thread.run(Thread.java:745)
          Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
              at java.lang.ClassLoader.defineClass1(Native Method)
              at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
              at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)
              at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)
              at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)
              at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)
              at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
              at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:498)
              at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)
              at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)
              at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
              at net.java.sezpoz.IndexItem.element(IndexItem.java:134)
              ... 13 more
          Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter
              at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
              at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
              at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
              ... 29 more
          
          Aug 28, 2017 9:16:16 AM hudson.ExtensionFinder$Sezpoz _find
          WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher
          java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
              at net.java.sezpoz.IndexItem.element(IndexItem.java:146)
              at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:620)
              at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)
              at hudson.ExtensionFinder$GuiceFinder.<init>(ExtensionFinder.java:257)
              at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
              at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
              at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
              at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
              at java.lang.Class.newInstance(Class.java:442)
              at net.java.sezpoz.IndexItem.instance(IndexItem.java:181)
              at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:634)
              at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)
              at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:477)
              at hudson.ExtensionList.load(ExtensionList.java:365)
              at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)
              at hudson.ExtensionList.getComponents(ExtensionList.java:168)
              at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)
              at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)
              at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)
              at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)
              at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
              at java.lang.Thread.run(Thread.java:745)
          Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
              at java.lang.ClassLoader.defineClass1(Native Method)
              at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
              at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)
              at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)
              at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)
              at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)
              at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
              at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:498)
              at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)
              at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)
              at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
              at net.java.sezpoz.IndexItem.element(IndexItem.java:134)
              ... 23 more
          Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter
              at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
              at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
              at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
              ... 39 more
          
          Aug 28, 2017 9:16:17 AM hudson.ExtensionFinder$Sezpoz _find
          WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher
          java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
              at net.java.sezpoz.IndexItem.element(IndexItem.java:146)
              at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:620)
              at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)
              at hudson.ExtensionFinder$GuiceFinder.<init>(ExtensionFinder.java:275)
              at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
              at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
              at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
              at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
              at java.lang.Class.newInstance(Class.java:442)
              at net.java.sezpoz.IndexItem.instance(IndexItem.java:181)
              at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:634)
              at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)
              at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:477)
              at hudson.ExtensionList.load(ExtensionList.java:365)
              at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)
              at hudson.ExtensionList.getComponents(ExtensionList.java:168)
              at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)
              at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)
              at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)
              at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)
              at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
              at java.lang.Thread.run(Thread.java:745)
          Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
              at java.lang.ClassLoader.defineClass1(Native Method)
              at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
              at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)
              at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)
              at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)
              at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)
              at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
              at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:498)
              at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)
              at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)
              at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
              at net.java.sezpoz.IndexItem.element(IndexItem.java:134)
              ... 23 more
          Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter
              at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
              at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
              at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
              ... 39 more
          
          Aug 28, 2017 9:16:17 AM hudson.ExtensionFinder$GuiceFinder$SezpozModule configure
          WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher
          java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
              at net.java.sezpoz.IndexItem.element(IndexItem.java:146)
              at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:499)
              at com.google.inject.AbstractModule.configure(AbstractModule.java:62)
              at com.google.inject.spi.Elements$RecordingBinder.install(Elements.java:340)
              at com.google.inject.spi.Elements.getElements(Elements.java:110)
              at com.google.inject.internal.InjectorShell$Builder.build(InjectorShell.java:138)
              at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:104)
              at com.google.inject.Guice.createInjector(Guice.java:96)
              at com.google.inject.Guice.createInjector(Guice.java:73)
              at hudson.ExtensionFinder$GuiceFinder.<init>(ExtensionFinder.java:280)
              at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
              at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
              at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
              at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
              at java.lang.Class.newInstance(Class.java:442)
              at net.java.sezpoz.IndexItem.instance(IndexItem.java:181)
              at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:634)
              at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)
              at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:477)
              at hudson.ExtensionList.load(ExtensionList.java:365)
              at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)
              at hudson.ExtensionList.getComponents(ExtensionList.java:168)
              at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)
              at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)
              at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)
              at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)
              at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
              at java.lang.Thread.run(Thread.java:745)
          Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
              at java.lang.ClassLoader.defineClass1(Native Method)
              at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
              at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)
              at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)
              at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)
              at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)
              at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
              at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:498)
              at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)
              at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)
              at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
              at net.java.sezpoz.IndexItem.element(IndexItem.java:134)
              ... 29 more
          Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter
              at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
              at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
              at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
              ... 45 more
          
          Aug 28, 2017 9:16:20 AM hudson.ExtensionFinder$Sezpoz _find
          WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher
          java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
              at net.java.sezpoz.IndexItem.element(IndexItem.java:146)
              at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:620)
              at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)
              at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:477)
              at hudson.ExtensionList.load(ExtensionList.java:365)
              at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)
              at hudson.ExtensionList.getComponents(ExtensionList.java:168)
              at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)
              at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)
              at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)
              at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)
              at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
              at java.lang.Thread.run(Thread.java:745)
          Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
              at java.lang.ClassLoader.defineClass1(Native Method)
              at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
              at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)
              at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)
              at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)
              at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)
              at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
              at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
              at java.lang.reflect.Method.invoke(Method.java:498)
              at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)
              at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)
              at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
              at net.java.sezpoz.IndexItem.element(IndexItem.java:134)
              ... 14 more
          Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter
              at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
              at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
              at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
              at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
              ... 30 more

          Environment:

          cat /etc/redhat-release
          CentOS Linux release 7.3.1611 (Core)
          rpm -q jenkins
          jenkins-2.60.3-1.1.noarch

          Jurijs Kolomijecs added a comment - Same problem since cobertura plugin installed: Aug 28, 2017 9:16:16 AM hudson.ExtensionFinder$Sezpoz scout WARNING: Failed to scout hudson.plugins.cobertura.MavenCoberturaPublisher java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter     at net.java.sezpoz.IndexItem.element(IndexItem.java:146)     at hudson.ExtensionFinder$Sezpoz.scout(ExtensionFinder.java:656)     at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:471)     at hudson.ExtensionList.load(ExtensionList.java:365)     at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)     at hudson.ExtensionList.getComponents(ExtensionList.java:168)     at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)     at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)     at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)     at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)     at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)     at java.lang. Thread .run( Thread .java:745) Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter     at java.lang. ClassLoader .defineClass1(Native Method)     at java.lang. ClassLoader .defineClass( ClassLoader .java:763)     at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)     at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)     at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)     at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)     at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)     at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)     at java.lang.reflect.Method.invoke(Method.java:498)     at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)     at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)     at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)     at java.lang. ClassLoader .loadClass( ClassLoader .java:424)     at java.lang. ClassLoader .loadClass( ClassLoader .java:357)     at net.java.sezpoz.IndexItem.element(IndexItem.java:134)     ... 13 more Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter     at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)     at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)     at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)     at java.lang. ClassLoader .loadClass( ClassLoader .java:357)     ... 29 more Aug 28, 2017 9:16:16 AM hudson.ExtensionFinder$Sezpoz _find WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter     at net.java.sezpoz.IndexItem.element(IndexItem.java:146)     at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:620)     at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)     at hudson.ExtensionFinder$GuiceFinder.<init>(ExtensionFinder.java:257)     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)     at java.lang.reflect.Constructor.newInstance(Constructor.java:423)     at java.lang. Class .newInstance( Class .java:442)     at net.java.sezpoz.IndexItem.instance(IndexItem.java:181)     at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:634)     at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)     at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:477)     at hudson.ExtensionList.load(ExtensionList.java:365)     at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)     at hudson.ExtensionList.getComponents(ExtensionList.java:168)     at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)     at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)     at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)     at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)     at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)     at java.lang. Thread .run( Thread .java:745) Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter     at java.lang. ClassLoader .defineClass1(Native Method)     at java.lang. ClassLoader .defineClass( ClassLoader .java:763)     at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)     at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)     at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)     at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)     at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)     at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)     at java.lang.reflect.Method.invoke(Method.java:498)     at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)     at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)     at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)     at java.lang. ClassLoader .loadClass( ClassLoader .java:424)     at java.lang. ClassLoader .loadClass( ClassLoader .java:357)     at net.java.sezpoz.IndexItem.element(IndexItem.java:134)     ... 23 more Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter     at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)     at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)     at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)     at java.lang. ClassLoader .loadClass( ClassLoader .java:357)     ... 39 more Aug 28, 2017 9:16:17 AM hudson.ExtensionFinder$Sezpoz _find WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter     at net.java.sezpoz.IndexItem.element(IndexItem.java:146)     at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:620)     at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)     at hudson.ExtensionFinder$GuiceFinder.<init>(ExtensionFinder.java:275)     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)     at java.lang.reflect.Constructor.newInstance(Constructor.java:423)     at java.lang. Class .newInstance( Class .java:442)     at net.java.sezpoz.IndexItem.instance(IndexItem.java:181)     at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:634)     at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)     at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:477)     at hudson.ExtensionList.load(ExtensionList.java:365)     at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)     at hudson.ExtensionList.getComponents(ExtensionList.java:168)     at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)     at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)     at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)     at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)     at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)     at java.lang. Thread .run( Thread .java:745) Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter     at java.lang. ClassLoader .defineClass1(Native Method)     at java.lang. ClassLoader .defineClass( ClassLoader .java:763)     at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)     at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)     at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)     at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)     at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)     at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)     at java.lang.reflect.Method.invoke(Method.java:498)     at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)     at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)     at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)     at java.lang. ClassLoader .loadClass( ClassLoader .java:424)     at java.lang. ClassLoader .loadClass( ClassLoader .java:357)     at net.java.sezpoz.IndexItem.element(IndexItem.java:134)     ... 23 more Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter     at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)     at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)     at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)     at java.lang. ClassLoader .loadClass( ClassLoader .java:357)     ... 39 more Aug 28, 2017 9:16:17 AM hudson.ExtensionFinder$GuiceFinder$SezpozModule configure WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter     at net.java.sezpoz.IndexItem.element(IndexItem.java:146)     at hudson.ExtensionFinder$GuiceFinder$SezpozModule.configure(ExtensionFinder.java:499)     at com.google.inject.AbstractModule.configure(AbstractModule.java:62)     at com.google.inject.spi.Elements$RecordingBinder.install(Elements.java:340)     at com.google.inject.spi.Elements.getElements(Elements.java:110)     at com.google.inject.internal.InjectorShell$Builder.build(InjectorShell.java:138)     at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:104)     at com.google.inject.Guice.createInjector(Guice.java:96)     at com.google.inject.Guice.createInjector(Guice.java:73)     at hudson.ExtensionFinder$GuiceFinder.<init>(ExtensionFinder.java:280)     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)     at java.lang.reflect.Constructor.newInstance(Constructor.java:423)     at java.lang. Class .newInstance( Class .java:442)     at net.java.sezpoz.IndexItem.instance(IndexItem.java:181)     at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:634)     at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)     at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:477)     at hudson.ExtensionList.load(ExtensionList.java:365)     at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)     at hudson.ExtensionList.getComponents(ExtensionList.java:168)     at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)     at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)     at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)     at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)     at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)     at java.lang. Thread .run( Thread .java:745) Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter     at java.lang. ClassLoader .defineClass1(Native Method)     at java.lang. ClassLoader .defineClass( ClassLoader .java:763)     at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)     at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)     at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)     at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)     at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)     at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)     at java.lang.reflect.Method.invoke(Method.java:498)     at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)     at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)     at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)     at java.lang. ClassLoader .loadClass( ClassLoader .java:424)     at java.lang. ClassLoader .loadClass( ClassLoader .java:357)     at net.java.sezpoz.IndexItem.element(IndexItem.java:134)     ... 29 more Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter     at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)     at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)     at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)     at java.lang. ClassLoader .loadClass( ClassLoader .java:357)     ... 45 more Aug 28, 2017 9:16:20 AM hudson.ExtensionFinder$Sezpoz _find WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter     at net.java.sezpoz.IndexItem.element(IndexItem.java:146)     at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:620)     at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)     at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:477)     at hudson.ExtensionList.load(ExtensionList.java:365)     at hudson.ExtensionList.ensureLoaded(ExtensionList.java:303)     at hudson.ExtensionList.getComponents(ExtensionList.java:168)     at jenkins.model.Jenkins$8.onInitMilestoneAttained(Jenkins.java:1121)     at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:82)     at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:104)     at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:176)     at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)     at java.lang. Thread .run( Thread .java:745) Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter     at java.lang. ClassLoader .defineClass1(Native Method)     at java.lang. ClassLoader .defineClass( ClassLoader .java:763)     at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)     at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:884)     at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)     at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)     at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)     at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)     at java.lang.reflect.Method.invoke(Method.java:498)     at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)     at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)     at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1864)     at java.lang. ClassLoader .loadClass( ClassLoader .java:424)     at java.lang. ClassLoader .loadClass( ClassLoader .java:357)     at net.java.sezpoz.IndexItem.element(IndexItem.java:134)     ... 14 more Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter     at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)     at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)     at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)     at java.lang. ClassLoader .loadClass( ClassLoader .java:357)     ... 30 more Environment: cat /etc/redhat-release CentOS Linux release 7.3.1611 (Core) rpm -q jenkins jenkins-2.60.3-1.1.noarch

          Jesse Glick added a comment -

          Offhand the NoClassDefFoundError sounds like a failure to pass optional=true to @Extension. If so, harmless noise.

          Jesse Glick added a comment - Offhand the NoClassDefFoundError  sounds like a failure to pass optional=true  to @Extension . If so, harmless noise.

          Daniel Beck added a comment -

          https://github.com/jenkinsci/cobertura-plugin/blob/1cf41b4edc3cf62fcc3d2295fdd53c9574ec4fbf/src/main/java/hudson/plugins/cobertura/MavenCoberturaPublisher.java#L240 needs to

          @Extension(optional = true)

          and then the entire plugin should declare an optional dependency on the Maven Plugin, so Jenkins dependency management can do its job (AFAICT). This seems to be missing, probably pulled in transitively (optional dependency on dashboard-view, which depends on maven-plugin).
          https://github.com/jenkinsci/cobertura-plugin/blob/master/pom.xml

          Daniel Beck added a comment - https://github.com/jenkinsci/cobertura-plugin/blob/1cf41b4edc3cf62fcc3d2295fdd53c9574ec4fbf/src/main/java/hudson/plugins/cobertura/MavenCoberturaPublisher.java#L240 needs to @Extension(optional = true ) and then the entire plugin should declare an optional dependency on the Maven Plugin, so Jenkins dependency management can do its job (AFAICT). This seems to be missing, probably pulled in transitively (optional dependency on dashboard-view, which depends on maven-plugin). https://github.com/jenkinsci/cobertura-plugin/blob/master/pom.xml

          Constantin Bugneac added a comment - - edited

          I confirm that this exception persists on Jenkins 2.103 (which is annoying) despite no maven is installed/used at all.

          Constantin Bugneac added a comment - - edited I confirm that this exception persists on Jenkins 2.103 (which is annoying) despite no maven is installed/used at all.

          Florian Kammermann added a comment - - edited

          Same error here, with different behaviour:

          • jenkins gui was not accessible anymore
          • the log showed, that the error was printing in a loop
          • additionally I had a Guice container error
          • after restart the loop was gone
          • the error was shown on startup

          the logs

          Apr 12, 2018 6:26:45 AM hudson.ExtensionFinder$GuiceFinder$SezpozModule configure
          WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher
          java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
                  at net.java.sezpoz.IndexItem.element(IndexItem.java:146)
          --------
          Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
                  at java.lang.ClassLoader.defineClass1(Native Method)
                  at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
          --------
          Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter
                  at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
                  at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
                  at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
          ---------
          Apr 12, 2018 6:26:45 AM hudson.ExtensionFinder$GuiceFinder <init>
          SEVERE: Failed to create Guice container from all the plugins
          com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: java.lang.NoClassDefFoundError: Lorg/jenkinsci/main/modules/instance_identity/InstanceIdentity;
                  at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2232)
                  at com.google.common.cache.LocalCache.get(LocalCache.java:3965)
                  at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3969)
          ----------
          Caused by: com.google.common.util.concurrent.ExecutionError: java.lang.NoClassDefFoundError: Lorg/jenkinsci/main/modules/instance_identity/InstanceIdentity;
                  at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2232)
                  at com.google.common.cache.LocalCache.get(LocalCache.java:3965)
                  at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3969)
          -----------
          Caused by: java.lang.NoClassDefFoundError: Lorg/jenkinsci/main/modules/instance_identity/InstanceIdentity;
                  at java.lang.Class.getDeclaredFields0(Native Method)
                  at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
                  at java.lang.Class.getDeclaredFields(Class.java:1916)
          -----------
          Caused by: java.lang.ClassNotFoundException: org.jenkinsci.main.modules.instance_identity.InstanceIdentity
                  at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
                  at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
                  at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
          
          

          jenkins version: 2.89.4
          maven integration: 3.1
          Cobetura: 1.12

          Florian Kammermann added a comment - - edited Same error here, with different behaviour: jenkins gui was not accessible anymore the log showed, that the error was printing in a loop additionally I had a Guice container error after restart the loop was gone the error was shown on startup the logs Apr 12, 2018 6:26:45 AM hudson.ExtensionFinder$GuiceFinder$SezpozModule configure WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter         at net.java.sezpoz.IndexItem.element(IndexItem.java:146) -------- Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter         at java.lang. ClassLoader .defineClass1(Native Method)         at java.lang. ClassLoader .defineClass( ClassLoader .java:763) -------- Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter         at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)         at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)         at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080) --------- Apr 12, 2018 6:26:45 AM hudson.ExtensionFinder$GuiceFinder <init> SEVERE: Failed to create Guice container from all the plugins com.google.common.util.concurrent.ExecutionError: com.google.common.util.concurrent.ExecutionError: java.lang.NoClassDefFoundError: Lorg/jenkinsci/main/modules/instance_identity/InstanceIdentity;         at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2232)         at com.google.common.cache.LocalCache.get(LocalCache.java:3965)         at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3969) ---------- Caused by: com.google.common.util.concurrent.ExecutionError: java.lang.NoClassDefFoundError: Lorg/jenkinsci/main/modules/instance_identity/InstanceIdentity;         at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2232)         at com.google.common.cache.LocalCache.get(LocalCache.java:3965)         at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3969) ----------- Caused by: java.lang.NoClassDefFoundError: Lorg/jenkinsci/main/modules/instance_identity/InstanceIdentity;         at java.lang. Class .getDeclaredFields0(Native Method)         at java.lang. Class .privateGetDeclaredFields( Class .java:2583)         at java.lang. Class .getDeclaredFields( Class .java:1916) ----------- Caused by: java.lang.ClassNotFoundException: org.jenkinsci.main.modules.instance_identity.InstanceIdentity         at java.net.URLClassLoader.findClass(URLClassLoader.java:381)         at java.lang. ClassLoader .loadClass( ClassLoader .java:424)         at java.lang. ClassLoader .loadClass( ClassLoader .java:357) jenkins version: 2.89.4 maven integration: 3.1 Cobetura: 1.12

          Matt Nuzzaco added a comment -

          Yep I'm hitting this as well..... running Jenkins via helm chart in a k8s cluster:

          Jenkins:2.119

           

          Plugins:

          • kubernetes:1.6.0
          • credentials-binding:1.16
          • git:3.8.0
          • github:1.29.0
          • github-branch-source:2.3.4
          • ghprb:1.40.0
          • google-login:1.3.1
          • ansicolor:0.5.2
          • cobertura:1.12
          • junit:1.24
          • timestamper:1.8.9
          • workflow-aggregator:2.5
          • blueocean:1.5.0
          • pipeline-aws:1.26
          • workflow-cps:2.52
          • jira:2.5.2

           

          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins May 07, 2018 3:04:02 PM hudson.ExtensionFinder$Sezpoz _find
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at net.java.sezpoz.IndexItem.element(IndexItem.java:146)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:620)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:482)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ExtensionList.load(ExtensionList.java:380)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ExtensionList.ensureLoaded(ExtensionList.java:318)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ExtensionList.getComponents(ExtensionList.java:183)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.model.Jenkins$6.onInitMilestoneAttained(Jenkins.java:1094)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:83)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at org.jvnet.hudson.reactor.ReactorListener$Aggregator.lambda$onAttained$3(ReactorListener.java:102)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at org.jvnet.hudson.reactor.ReactorListener$Aggregator.run(ReactorListener.java:109)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:102)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:177)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang.Thread.run(Thread.java:748)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang.ClassLoader.defineClass1(Native Method)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:847)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang.reflect.Method.invoke(Method.java:498)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1872)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at net.java.sezpoz.IndexItem.element(IndexItem.java:134)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins ... 16 more
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins ... 32 more
          jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins

          Matt Nuzzaco added a comment - Yep I'm hitting this as well..... running Jenkins via helm chart in a k8s cluster: Jenkins:2.119   Plugins: kubernetes:1.6.0 credentials-binding:1.16 git:3.8.0 github:1.29.0 github-branch-source:2.3.4 ghprb:1.40.0 google-login:1.3.1 ansicolor:0.5.2 cobertura:1.12 junit:1.24 timestamper:1.8.9 workflow-aggregator:2.5 blueocean:1.5.0 pipeline-aws:1.26 workflow-cps:2.52 jira:2.5.2   jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins May 07, 2018 3:04:02 PM hudson.ExtensionFinder$Sezpoz _find jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins WARNING: Failed to load hudson.plugins.cobertura.MavenCoberturaPublisher jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins java.lang.InstantiationException: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at net.java.sezpoz.IndexItem.element(IndexItem.java:146) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ExtensionFinder$Sezpoz._find(ExtensionFinder.java:620) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ExtensionFinder$Sezpoz.find(ExtensionFinder.java:609) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:482) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ExtensionList.load(ExtensionList.java:380) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ExtensionList.ensureLoaded(ExtensionList.java:318) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ExtensionList.getComponents(ExtensionList.java:183) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.model.Jenkins$6.onInitMilestoneAttained(Jenkins.java:1094) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.InitReactorRunner$1.onAttained(InitReactorRunner.java:83) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at org.jvnet.hudson.reactor.ReactorListener$Aggregator.lambda$onAttained$3(ReactorListener.java:102) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at org.jvnet.hudson.reactor.ReactorListener$Aggregator.run(ReactorListener.java:109) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at org.jvnet.hudson.reactor.ReactorListener$Aggregator.onAttained(ReactorListener.java:102) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at org.jvnet.hudson.reactor.Reactor$1.run(Reactor.java:177) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:117) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang. Thread .run( Thread .java:748) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenReporter jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang. ClassLoader .defineClass1(Native Method) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang. ClassLoader .defineClass( ClassLoader .java:763) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1140) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:847) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1311) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1364) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang.reflect.Method.invoke(Method.java:498) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:81) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1872) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang. ClassLoader .loadClass( ClassLoader .java:424) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang. ClassLoader .loadClass( ClassLoader .java:357) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at net.java.sezpoz.IndexItem.element(IndexItem.java:134) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins ... 16 more jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenReporter jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1374) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1327) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1080) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins at java.lang. ClassLoader .loadClass( ClassLoader .java:357) jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins ... 32 more jenkins-jenkins-86b5c6456f-sfrpz jenkins-jenkins

          Jeff Pearce added a comment -

          Fixed in release 1.12.1

          Jeff Pearce added a comment - Fixed in release 1.12.1

            Unassigned Unassigned
            johnv John V
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              Created:
              Updated:
              Resolved: