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  1. ,
    via Stack Overflow by ERJAN

    This exception occurs when using an older version of java. Mainly when trying to run a jar compiled with a newer Java version in an older Java version. We can avoid this issue by executing the jar in the same version which it was compiled.

  2. ,
    Expert 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    This might be caused by and outdated version of Java, SonarQube now uses Java 8 as default.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.

Solutions on the web

via Eclipse Bugzilla by anb0s, 1 year ago
via Coderanch by Rajesh Sunil, 1 year ago
via GitHub by summit123
, 1 year ago
This exception has no message.
via GitHub by summit123
, 1 year ago
This exception has no message.
via Coderanch by Alex Varghese, 1 year ago
This exception has no message.
via Coderanch by bakthi madusanka, 1 year ago
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)	at hudson.model.Items.load(Items.java:319)	at hudson.model.ItemGroupMixIn$4.call(ItemGroupMixIn.java:264)	at hudson.model.ItemGroupMixIn$4.call(ItemGroupMixIn.java:262)	at hudson.model.Items.whileUpdatingByXml(Items.java:95)	at hudson.model.ItemGroupMixIn.createProjectFromXML(ItemGroupMixIn.java:262)	at hudson.model.ItemGroupMixIn.createTopLevelItem(ItemGroupMixIn.java:184)	at com.cloudbees.hudson.plugins.folder.Folder.doCreateItem(Folder.java:603)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.kohsuke.stapler.Function$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)