java.io.IOException: Unable to load hudson.plugins.ircbot.PluginImpl from ircbot

Jenkins JIRA | Adrien CLERC | 2 years ago
  1. 0

    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.

    Jenkins JIRA | 2 years ago | Adrien CLERC
    java.io.IOException: Unable to load hudson.plugins.ircbot.PluginImpl from ircbot
  2. 0

    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.

    Jenkins JIRA | 2 years ago | Adrien CLERC
    java.io.IOException: Unable to load hudson.plugins.ircbot.PluginImpl from ircbot
  3. 0

    GitHub comment 7#163946165

    GitHub | 12 months ago | BogdanLivadariu
    java.lang.InstantiationException: java.lang.UnsupportedClassVersionError: com/github/bogdanlivadariu/jenkins/reporting/rspec/RSpecTestReportPublisher$DescriptorImpl : Unsupported major.minor version 52.0
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  5. 0

    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.

    Jenkins JIRA | 2 years ago | Matt Smollinger
    java.lang.InstantiationException: java.lang.UnsupportedClassVersionError: net/hockeyapp/jenkins/releaseNotes/ChangelogReleaseNotes$DescriptorImpl : Unsupported major.minor version 51.0
  6. 0

    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?

    Jenkins JIRA | 1 year ago | Will Saxon
    java.lang.reflect.InvocationTargetException

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    Root Cause Analysis

    1. java.lang.UnsupportedClassVersionError

      JVMCFRE003 bad major version; class=hudson/plugins/im/IMPlugin, offset=6

      at java.lang.ClassLoader.defineClassImpl()
    2. Java RT
      ClassLoader.defineClass
      1. java.lang.ClassLoader.defineClassImpl(Native Method)
      2. java.lang.ClassLoader.defineClass(ClassLoader.java:275)
      2 frames
    3. jenkins.util
      AntClassLoader.defineClassFromData
      1. jenkins.util.AntClassLoader.defineClassFromData(AntClassLoader.java:1139)
      1 frame
    4. Hudson
      ClassicPluginStrategy$AntClassLoader2.defineClassFromData
      1. hudson.ClassicPluginStrategy$AntClassLoader2.defineClassFromData(ClassicPluginStrategy.java:799)
      1 frame
    5. jenkins.util
      AntClassLoader.findClass
      1. jenkins.util.AntClassLoader.getClassFromStream(AntClassLoader.java:1310)
      2. jenkins.util.AntClassLoader.findClassInComponents(AntClassLoader.java:1366)
      3. jenkins.util.AntClassLoader.findClass(AntClassLoader.java:1326)
      3 frames
    6. Java RT
      Method.invoke
      1. sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
      2. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
      3. java.lang.reflect.Method.invoke(Method.java:611)
      3 frames
    7. jenkins
      ClassLoaderReflectionToolkit._findClass
      1. jenkins.ClassLoaderReflectionToolkit.invoke(ClassLoaderReflectionToolkit.java:44)
      2. jenkins.ClassLoaderReflectionToolkit._findClass(ClassLoaderReflectionToolkit.java:86)
      2 frames
    8. Hudson
      ClassicPluginStrategy$DependencyClassLoader.findClass
      1. hudson.ClassicPluginStrategy$DependencyClassLoader.findClass(ClassicPluginStrategy.java:677)
      1 frame
    9. Java RT
      ClassLoader.loadClass
      1. java.lang.ClassLoader.loadClass(ClassLoader.java:660)
      2. java.lang.ClassLoader.loadClass(ClassLoader.java:626)
      2 frames
    10. jenkins.util
      AntClassLoader.loadClass
      1. jenkins.util.AntClassLoader.findBaseClass(AntClassLoader.java:1398)
      2. jenkins.util.AntClassLoader.loadClass(AntClassLoader.java:1075)
      2 frames
    11. Java RT
      ClassLoader.loadClass
      1. java.lang.ClassLoader.loadClass(ClassLoader.java:626)
      1 frame
    12. hudson.plugins.ircbot
      PluginImpl.<init>
      1. hudson.plugins.ircbot.PluginImpl.<init>(PluginImpl.java:18)
      1 frame
    13. Java RT
      Class.newInstance
      1. java.lang.J9VMInternals.newInstanceImpl(Native Method)
      2. java.lang.Class.newInstance(Class.java:1549)
      2 frames
    14. Hudson
      ClassicPluginStrategy.load
      1. hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:416)
      1 frame