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:1861)
	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:748)}}