java.lang.InstantiationException

tip

Update "latest" to Java 8 on DockerHub.

tip

This might be caused by and outdated version of Java, SonarQube now uses Java 8 as default. You might upgrade java or use an older version of SonarQube.

tip

You're using an older version of java with classes compiled for java7

tip

If you're using intellij plugin of sonarqube, you might have to set the JAVA_HOME ambient variable manually.

You have a different solution? A short tip here would help you and many other users who saw this issue last week.

  • Seems like since updating to 1.2.0 of hockeyapp, Jenkins has been unable to load the plugin. Here's a excerpt of the log, with the full log attached as a file: Dec 22, 2014 1:50:45 PM WARNING hudson.ExtensionFinder$Sezpoz scout Failed to scout net.hockeyapp.jenkins.releaseNotes.ChangelogReleaseNotes$DescriptorImpl java.lang.InstantiationException: java.lang.UnsupportedClassVersionError: net/hockeyapp/jenkins/releaseNotes/ChangelogReleaseNotes$DescriptorImpl : Unsupported major.minor version 51.0 at net.java.sezpoz.IndexItem.element(IndexItem.java:146) at hudson.ExtensionFinder$Sezpoz.scout(ExtensionFinder.java:666) at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:349) at hudson.ExtensionList.load(ExtensionList.java:300) at hudson.ExtensionList.ensureLoaded(ExtensionList.java:253) at hudson.ExtensionList.iterator(ExtensionList.java:143) at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:348) at hudson.ExtensionList.load(ExtensionList.java:300) at hudson.ExtensionList.ensureLoaded(ExtensionList.java:253) at hudson.ExtensionList.size(ExtensionList.java:162) at com.sonyericsson.hudson.plugins.gerrit.trigger.PluginImpl.postInitialize(PluginImpl.java:298) at hudson.PluginManager$2$1$2.run(PluginManager.java:386) at org.jvnet.hudson.reactor.TaskGraphBuilder$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$Worker.runTask(ThreadPoolExecutor.java:895) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) at java.lang.Thread.run(Thread.java:695) Caused by: java.lang.UnsupportedClassVersionError: net/hockeyapp/jenkins/releaseNotes/ChangelogReleaseNotes$DescriptorImpl : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1138) at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:768) 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 sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44) at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:86) at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1110) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at net.java.sezpoz.IndexItem.element(IndexItem.java:134) ... 19 more Can confirm downgrading to 1.1.0 resolves this issue.
    via by Matt Smollinger,
  • Seems like since updating to 1.2.0 of hockeyapp, Jenkins has been unable to load the plugin. Here's a excerpt of the log, with the full log attached as a file: Dec 22, 2014 1:50:45 PM WARNING hudson.ExtensionFinder$Sezpoz scout Failed to scout net.hockeyapp.jenkins.releaseNotes.ChangelogReleaseNotes$DescriptorImpl java.lang.InstantiationException: java.lang.UnsupportedClassVersionError: net/hockeyapp/jenkins/releaseNotes/ChangelogReleaseNotes$DescriptorImpl : Unsupported major.minor version 51.0 at net.java.sezpoz.IndexItem.element(IndexItem.java:146) at hudson.ExtensionFinder$Sezpoz.scout(ExtensionFinder.java:666) at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:349) at hudson.ExtensionList.load(ExtensionList.java:300) at hudson.ExtensionList.ensureLoaded(ExtensionList.java:253) at hudson.ExtensionList.iterator(ExtensionList.java:143) at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:348) at hudson.ExtensionList.load(ExtensionList.java:300) at hudson.ExtensionList.ensureLoaded(ExtensionList.java:253) at hudson.ExtensionList.size(ExtensionList.java:162) at com.sonyericsson.hudson.plugins.gerrit.trigger.PluginImpl.postInitialize(PluginImpl.java:298) at hudson.PluginManager$2$1$2.run(PluginManager.java:386) at org.jvnet.hudson.reactor.TaskGraphBuilder$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$Worker.runTask(ThreadPoolExecutor.java:895) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) at java.lang.Thread.run(Thread.java:695) Caused by: java.lang.UnsupportedClassVersionError: net/hockeyapp/jenkins/releaseNotes/ChangelogReleaseNotes$DescriptorImpl : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1138) at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:768) 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 sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44) at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:86) at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1110) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at net.java.sezpoz.IndexItem.element(IndexItem.java:134) ... 19 more Can confirm downgrading to 1.1.0 resolves this issue.
    via by Matt Smollinger,
  • GitHub comment 1#39986572
    via GitHub by ampledata
    ,
  • GitHub comment 7#163946165
    via GitHub by BogdanLivadariu
    ,
  • We upgraded ivy-plugin from 1.24 to 1.25 yesterday. This morning we noted missing content in some of our builds; tracing backwards, we found that some upstream builds were completely missing from Jenkins, and as a result did not run to provide the new content we were looking for. The job configs and history were still present on the Jenkins master. I backed everything up, took one of the config.xmls and tried to recreate the job, generating the following log entries: {quote}Oct 08, 2015 12:25:20 PM org.eclipse.jetty.util.log.JavaUtilLog warn WARNING: Error while serving http://jenkins.domain.local/job/ProductA/createItem java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96) at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:121) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876) at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:249) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649) at org.kohsuke.stapler.Stapler.service(Stapler.java:238) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:686) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:123) at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:198) at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:176) at net.bull.javamelody.PluginMonitoringFilter.doFilter(PluginMonitoringFilter.java:85) at org.jvnet.hudson.plugins.monitoring.HudsonMonitoringFilter.doFilter(HudsonMonitoringFilter.java:99) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:120) at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:58) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:120) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:114) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at org.jenkinsci.plugins.reverse_proxy_auth.ReverseProxySecurityRealm$1.doFilter(ReverseProxySecurityRealm.java:468) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:168) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1474) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:533) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489) at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:949) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1011) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:651) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: java.io.IOException: Unable to read /var/lib/jenkins/jobs/Intergy/jobs/medman-rel10.00/config.xml at hudson.XmlFile.read(XmlFile.java:146) at hudson.model.Items.load(Items.java:319) at hudson.model.ItemGroupMixIn$4.call(ItemGroupMixIn.java:264) at hudson.model.ItemGroupMixIn$4.call(ItemGroupMixIn.java:262) at hudson.model.Items.whileUpdatingByXml(Items.java:95) at hudson.model.ItemGroupMixIn.createProjectFromXML(ItemGroupMixIn.java:262) at hudson.model.ItemGroupMixIn.createTopLevelItem(ItemGroupMixIn.java:184) at com.cloudbees.hudson.plugins.folder.Folder.doCreateItem(Folder.java:603) ... 64 more Caused by: java.lang.UnsupportedClassVersionError: hudson/ivy/IvyModuleSet : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1138) at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:799) 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 sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44) at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:86) at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1119) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:274) at com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.java:77) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProxyMapper.java:55) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.PackageAliasingMapper.realClass(PackageAliasingMapper.java:88) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.ClassAliasingMapper.realClass(ClassAliasingMapper.java:79) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.ArrayMapper.realClass(ArrayMapper.java:74) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.SecurityMapper.realClass(SecurityMapper.java:71) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at hudson.util.XStream2$CompatibilityMapper.realClass(XStream2.java:280) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at hudson.util.xstream.MapperDelegate.realClass(MapperDelegate.java:43) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.CachingMapper.realClass(CachingMapper.java:48) at com.thoughtworks.xstream.core.util.HierarchicalStreams.readClassType(HierarchicalStreams.java:29) at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:133) 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 com.thoughtworks.xstream.XStream.fromXML(XStream.java:1053) at hudson.XmlFile.read(XmlFile.java:142) ... 71 more {quote} The "Unsupported major.minor version 52.0" suggests the plugin was built with and requires Java 8. Is this true? If so, could the plugin be re-released using a more widely supported version of Java?
    via by Will Saxon,
  • We upgraded ivy-plugin from 1.24 to 1.25 yesterday. This morning we noted missing content in some of our builds; tracing backwards, we found that some upstream builds were completely missing from Jenkins, and as a result did not run to provide the new content we were looking for. The job configs and history were still present on the Jenkins master. I backed everything up, took one of the config.xmls and tried to recreate the job, generating the following log entries: {quote}Oct 08, 2015 12:25:20 PM org.eclipse.jetty.util.log.JavaUtilLog warn WARNING: Error while serving http://jenkins.domain.local/job/ProductA/createItem java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.kohsuke.stapler.Function$InstanceFunction.invoke(Function.java:298) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:161) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:96) at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:121) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876) at org.kohsuke.stapler.MetaClass$6.doDispatch(MetaClass.java:249) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:746) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:876) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649) at org.kohsuke.stapler.Stapler.service(Stapler.java:238) at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:686) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1494) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:123) at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:198) at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:176) at net.bull.javamelody.PluginMonitoringFilter.doFilter(PluginMonitoringFilter.java:85) at org.jvnet.hudson.plugins.monitoring.HudsonMonitoringFilter.doFilter(HudsonMonitoringFilter.java:99) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:120) at hudson.plugins.greenballs.GreenBallFilter.doFilter(GreenBallFilter.java:58) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:120) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:114) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at org.jenkinsci.plugins.reverse_proxy_auth.ReverseProxySecurityRealm$1.doFilter(ReverseProxySecurityRealm.java:468) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:168) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1482) at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1474) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:499) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:533) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1086) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:428) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1020) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) at org.eclipse.jetty.server.Server.handle(Server.java:370) at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489) at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:949) at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1011) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:651) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235) at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:668) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: java.io.IOException: Unable to read /var/lib/jenkins/jobs/Intergy/jobs/medman-rel10.00/config.xml at hudson.XmlFile.read(XmlFile.java:146) at hudson.model.Items.load(Items.java:319) at hudson.model.ItemGroupMixIn$4.call(ItemGroupMixIn.java:264) at hudson.model.ItemGroupMixIn$4.call(ItemGroupMixIn.java:262) at hudson.model.Items.whileUpdatingByXml(Items.java:95) at hudson.model.ItemGroupMixIn.createProjectFromXML(ItemGroupMixIn.java:262) at hudson.model.ItemGroupMixIn.createTopLevelItem(ItemGroupMixIn.java:184) at com.cloudbees.hudson.plugins.folder.Folder.doCreateItem(Folder.java:603) ... 64 more Caused by: java.lang.UnsupportedClassVersionError: hudson/ivy/IvyModuleSet : Unsupported major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1138) at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:799) 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 sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44) at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:86) at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1119) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:274) at com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.java:77) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProxyMapper.java:55) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.PackageAliasingMapper.realClass(PackageAliasingMapper.java:88) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.ClassAliasingMapper.realClass(ClassAliasingMapper.java:79) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.ArrayMapper.realClass(ArrayMapper.java:74) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.SecurityMapper.realClass(SecurityMapper.java:71) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at hudson.util.XStream2$CompatibilityMapper.realClass(XStream2.java:280) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at hudson.util.xstream.MapperDelegate.realClass(MapperDelegate.java:43) at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:30) at com.thoughtworks.xstream.mapper.CachingMapper.realClass(CachingMapper.java:48) at com.thoughtworks.xstream.core.util.HierarchicalStreams.readClassType(HierarchicalStreams.java:29) at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:133) 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 com.thoughtworks.xstream.XStream.fromXML(XStream.java:1053) at hudson.XmlFile.read(XmlFile.java:142) ... 71 more {quote} The "Unsupported major.minor version 52.0" suggests the plugin was built with and requires Java 8. Is this true? If so, could the plugin be re-released using a more widely supported version of Java?
    via by Will Saxon,
  • After updating from 1.30 to 1.35, I encountered the following stack trace: {{SEVERE: Failed Loading plugin ircbot Throwable occurred: java.io.IOException: Unable to load hudson.plugins.ircbot.PluginImpl from ircbot at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:422) at hudson.PluginManager$2$1$1.run(PluginManager.java:371) at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:169) at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:282) at jenkins.model.Jenkins$7.runTask(Jenkins.java:905) 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$Worker.runTask(ThreadPoolExecutor.java:908) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:931) at java.lang.Thread.run(Thread.java:738) Caused by: java.lang.UnsupportedClassVersionError: JVMCFRE003 bad major version; class=hudson/plugins/im/IMPlugin, offset=6 at java.lang.ClassLoader.defineClassImpl(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:275) at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1139) at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:799) at jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1310) at jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1366) at jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1326) at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37) at java.lang.reflect.Method.invoke(Method.java:611) at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44) at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:86) at hudson.ClassicPluginStrategy$DependencyClassLoader.findClass(ClassicPluginStrategy.java:677) at java.lang.ClassLoader.loadClass(ClassLoader.java:660) at java.lang.ClassLoader.loadClass(ClassLoader.java:626) at jenkins.util.AntClassLoader.findBaseClass(AntClassLoader.java:1398) at jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1075) at java.lang.ClassLoader.loadClass(ClassLoader.java:626) at hudson.plugins.ircbot.PluginImpl.<init>(PluginImpl.java:18) at java.lang.J9VMInternals.newInstanceImpl(Native Method) at java.lang.Class.newInstance(Class.java:1549) at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:416) ... 9 more}} Downgrading to 1.30 worked. I know that IBM J9 might be not supported, but I think that instant-messaging should support 1.6 version of Java.
    via by Adrien CLERC,
    • java.lang.InstantiationException: java.lang.UnsupportedClassVersionError: net/hockeyapp/jenkins/releaseNotes/ChangelogReleaseNotes$DescriptorImpl : Unsupported major.minor version 51.0 at net.java.sezpoz.IndexItem.element(IndexItem.java:146) at hudson.ExtensionFinder$Sezpoz.scout(ExtensionFinder.java:666) at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:349) at hudson.ExtensionList.load(ExtensionList.java:300) at hudson.ExtensionList.ensureLoaded(ExtensionList.java:253) at hudson.ExtensionList.iterator(ExtensionList.java:143) at hudson.ClassicPluginStrategy.findComponents(ClassicPluginStrategy.java:348) at hudson.ExtensionList.load(ExtensionList.java:300) at hudson.ExtensionList.ensureLoaded(ExtensionList.java:253) at hudson.ExtensionList.size(ExtensionList.java:162) at com.sonyericsson.hudson.plugins.gerrit.trigger.PluginImpl.postInitialize(PluginImpl.java:298) at hudson.PluginManager$2$1$2.run(PluginManager.java:386) at org.jvnet.hudson.reactor.TaskGraphBuilder$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$Worker.runTask(ThreadPoolExecutor.java:895) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918) at java.lang.Thread.run(Thread.java:695) Caused by: java.lang.UnsupportedClassVersionError: net/hockeyapp/jenkins/releaseNotes/ChangelogReleaseNotes$DescriptorImpl : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1138) at hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:768) 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 sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44) at jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:86) at hudson.PluginManager$UberClassLoader.findClass(PluginManager.java:1110) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at net.java.sezpoz.IndexItem.element(IndexItem.java:134) ... 19 more

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