java.lang.NoClassDefFoundError

tip

A few things cause this exception: 1) Check if you have all jars and if they're in the correct path when running. 2) Your classpath might be broken, you can define it in the command line with "java -cp yourClassPath" or at your IDE if you're using one.

tip

Needs to add netty-transport-native-epoll with a OS classifier to the classpath, it's not included in netty-all

tip

This might be an issue with the file location in the Spark submit command. Try it with "spark-submit --master spark://master:7077 hello_world_from_pyspark.py {file location}"

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

  • A user who perhaps had the Maven plugin disabled or uninstalled encountered this fatal error during Jenkins startup: {code:none} ... SEVERE jenkins.InitReactorRunner$1#onTaskFailed: Failed Discovering plugin initialization tasks java.lang.NoClassDefFoundError: hudson/maven/MavenBuild at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2451) at java.lang.Class.getDeclaredMethods(Class.java:1810) at org.jvnet.hudson.annotation_indexer.Index$2$1.fetch(Index.java:101) at org.jvnet.hudson.annotation_indexer.Index$2$1.hasNext(Index.java:71) at org.jvnet.hudson.annotation_indexer.FilterIterator.fetch(FilterIterator.java:23) at org.jvnet.hudson.annotation_indexer.FilterIterator.hasNext(FilterIterator.java:42) at hudson.init.InitializerFinder.discoverTasks(InitializerFinder.java:70) at hudson.PluginManager$2$1$3.run(PluginManager.java:367) at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:146) at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259) at jenkins.model.Jenkins$7.runTask(Jenkins.java:888) at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187) at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94) 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:722) Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenBuild at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 17 more ... SEVERE hudson.WebAppMain$2#run: Failed to initialize Jenkins org.jvnet.hudson.reactor.ReactorException: java.lang.NoClassDefFoundError: hudson/maven/MavenBuild at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:246) at jenkins.InitReactorRunner.run(InitReactorRunner.java:43) at jenkins.model.Jenkins.executeReactor(Jenkins.java:899) at jenkins.model.Jenkins.<init>(Jenkins.java:801) at hudson.model.Hudson.<init>(Hudson.java:81) at hudson.model.Hudson.<init>(Hudson.java:77) at hudson.WebAppMain$2.run(WebAppMain.java:214) Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenBuild at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2451) at java.lang.Class.getDeclaredMethods(Class.java:1810) at org.jvnet.hudson.annotation_indexer.Index$2$1.fetch(Index.java:101) at org.jvnet.hudson.annotation_indexer.Index$2$1.hasNext(Index.java:71) at org.jvnet.hudson.annotation_indexer.FilterIterator.fetch(FilterIterator.java:23) at org.jvnet.hudson.annotation_indexer.FilterIterator.hasNext(FilterIterator.java:42) at hudson.init.InitializerFinder.discoverTasks(InitializerFinder.java:70) at hudson.PluginManager$2$1$3.run(PluginManager.java:367) at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:146) at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259) at jenkins.model.Jenkins$7.runTask(Jenkins.java:888) at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187) at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94) 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:722) Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenBuild at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 17 more {code} The annotation indexer should just proceed in case some annotated classes are unloadable due to linkage errors, just as it proceeds when the classes are missing.
    via by Jesse Glick,
  • A user who perhaps had the Maven plugin disabled or uninstalled encountered this fatal error during Jenkins startup: {code:none} ... SEVERE jenkins.InitReactorRunner$1#onTaskFailed: Failed Discovering plugin initialization tasks java.lang.NoClassDefFoundError: hudson/maven/MavenBuild at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2451) at java.lang.Class.getDeclaredMethods(Class.java:1810) at org.jvnet.hudson.annotation_indexer.Index$2$1.fetch(Index.java:101) at org.jvnet.hudson.annotation_indexer.Index$2$1.hasNext(Index.java:71) at org.jvnet.hudson.annotation_indexer.FilterIterator.fetch(FilterIterator.java:23) at org.jvnet.hudson.annotation_indexer.FilterIterator.hasNext(FilterIterator.java:42) at hudson.init.InitializerFinder.discoverTasks(InitializerFinder.java:70) at hudson.PluginManager$2$1$3.run(PluginManager.java:367) at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:146) at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259) at jenkins.model.Jenkins$7.runTask(Jenkins.java:888) at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187) at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94) 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:722) Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenBuild at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 17 more ... SEVERE hudson.WebAppMain$2#run: Failed to initialize Jenkins org.jvnet.hudson.reactor.ReactorException: java.lang.NoClassDefFoundError: hudson/maven/MavenBuild at org.jvnet.hudson.reactor.Reactor.execute(Reactor.java:246) at jenkins.InitReactorRunner.run(InitReactorRunner.java:43) at jenkins.model.Jenkins.executeReactor(Jenkins.java:899) at jenkins.model.Jenkins.<init>(Jenkins.java:801) at hudson.model.Hudson.<init>(Hudson.java:81) at hudson.model.Hudson.<init>(Hudson.java:77) at hudson.WebAppMain$2.run(WebAppMain.java:214) Caused by: java.lang.NoClassDefFoundError: hudson/maven/MavenBuild at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2451) at java.lang.Class.getDeclaredMethods(Class.java:1810) at org.jvnet.hudson.annotation_indexer.Index$2$1.fetch(Index.java:101) at org.jvnet.hudson.annotation_indexer.Index$2$1.hasNext(Index.java:71) at org.jvnet.hudson.annotation_indexer.FilterIterator.fetch(FilterIterator.java:23) at org.jvnet.hudson.annotation_indexer.FilterIterator.hasNext(FilterIterator.java:42) at hudson.init.InitializerFinder.discoverTasks(InitializerFinder.java:70) at hudson.PluginManager$2$1$3.run(PluginManager.java:367) at org.jvnet.hudson.reactor.TaskGraphBuilder$TaskImpl.run(TaskGraphBuilder.java:146) at org.jvnet.hudson.reactor.Reactor.runTask(Reactor.java:259) at jenkins.model.Jenkins$7.runTask(Jenkins.java:888) at org.jvnet.hudson.reactor.Reactor$2.run(Reactor.java:187) at org.jvnet.hudson.reactor.Reactor$Node.run(Reactor.java:94) 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:722) Caused by: java.lang.ClassNotFoundException: hudson.maven.MavenBuild at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 17 more {code} The annotation indexer should just proceed in case some annotated classes are unloadable due to linkage errors, just as it proceeds when the classes are missing.
    via by Jesse Glick,
  • Grails User Mailing List ()
    via by Unknown author,
    • java.lang.NoClassDefFoundError: jenkins/model/RunAction2 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:760) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:760) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.getDeclaredMethods(Class.java:1975) at org.jvnet.hudson.annotation_indexer.Index$2$1.fetch(Index.java:101) at org.jvnet.hudson.annotation_indexer.Index$2$1.hasNext(Index.java:71) at org.jvnet.hudson.annotation_indexer.FilterIterator.fetch(FilterIterator.java:23) at org.jvnet.hudson.annotation_indexer.FilterIterator.hasNext(FilterIterator.java:42) at hudson.init.InitializerFinder.discoverTasks(InitializerFinder.java:70) at hudson.init.InitializerFinder.discoverTasks(InitializerFinder.java:55) at org.jvnet.hudson.reactor.TaskBuilder$2.discoverTasks(TaskBuilder.java:40) at org.jvnet.hudson.reactor.Reactor.<init>(Reactor.java:128) at org.jvnet.hudson.reactor.Reactor.<init>(Reactor.java:133) at jenkins.model.Jenkins$6.<init>(Jenkins.java:821) at jenkins.model.Jenkins.executeReactor(Jenkins.java:821) at jenkins.model.Jenkins.<init>(Jenkins.java:761) at hudson.model.Hudson.<init>(Hudson.java:81) at org.jvnet.hudson.test.HudsonTestCase.newHudson(HudsonTestCase.java:441) at org.jvnet.hudson.test.HudsonTestCase.setUp(HudsonTestCase.java:300) at org.jenkins.plugins.audit2db.test.integration.WhenAccessingReportPages.setUp(WhenAccessingReportPages.java:49) at junit.framework.TestCase.runBare(TestCase.java:132) at org.jvnet.hudson.test.HudsonTestCase.runBare(HudsonTestCase.java:285) at junit.framework.TestResult$1.protect(TestResult.java:110) at junit.framework.TestResult.runProtected(TestResult.java:128) at junit.framework.TestResult.run(TestResult.java:113) at junit.framework.TestCase.run(TestCase.java:124) at junit.framework.TestSuite.runTest(TestSuite.java:232) at junit.framework.TestSuite.run(TestSuite.java:227) at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:81) at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164) at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110) at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:172) at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:104) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:70) Caused by: java.lang.ClassNotFoundException: jenkins.model.RunAction2 at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 64 more

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