java.lang.NoClassDefFoundError

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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.

  • Eclipse log is full of "Internal Error" messages all showing the same stacktrace (see below). While it's true that this class is not on the project's classpath, it also doesn't matter because this is runtime-only dependency (that dependency actually has scope 'provided' in our associated Maven pom as it's deployed in our Tomcat's root classloader). java.lang.NoClassDefFoundError: org/objectweb/jotm/Jotm at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.privateGetMethodRecursive(Class.java:3048) at java.lang.Class.getMethod0(Class.java:3018) at java.lang.Class.getMethod(Class.java:1784) at org.springframework.ide.eclipse.beans.core.autowire.internal.provider.AutowireDependencyProvider.isFactoryForType(AutowireDependencyProvider.java:382) at org.springframework.ide.eclipse.beans.core.autowire.internal.provider.AutowireDependencyProvider.getBeansForType(AutowireDependencyProvider.java:365) at org.springframework.ide.eclipse.beans.core.autowire.internal.provider.AutowireDependencyProvider.getBeansForType(AutowireDependencyProvider.java:346) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector$1.doWithActiveProjectClassLoader(AutowireHyperlinkDetector.java:139) at org.springframework.ide.eclipse.core.java.JdtUtils$DefaultProjectClassLoaderSupport.executeCallback(JdtUtils.java:977) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinksHelper(AutowireHyperlinkDetector.java:136) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinksHelper(AutowireHyperlinkDetector.java:117) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinksHelper(AutowireHyperlinkDetector.java:94) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinks(AutowireHyperlinkDetector.java:69) at org.eclipse.jdt.internal.ui.javaeditor.JavaElementHyperlinkDetector.detectHyperlinks(JavaElementHyperlinkDetector.java:114) at org.eclipse.ui.texteditor.HyperlinkDetectorRegistry$HyperlinkDetectorDelegate.detectHyperlinks(HyperlinkDetectorRegistry.java:80) at org.eclipse.jface.text.hyperlink.HyperlinkManager.findHyperlinks(HyperlinkManager.java:289) at org.eclipse.jface.text.hyperlink.HyperlinkManager.findHyperlinks(HyperlinkManager.java:261) at org.eclipse.jface.text.hyperlink.HyperlinkManager.mouseMove(HyperlinkManager.java:469) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:212) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4454) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1388) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3799) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3409) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) 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.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) Caused by: java.lang.ClassNotFoundException: org.objectweb.jotm.Jotm at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 47 more
    via by Tobias Gierke,
  • Eclipse log is full of "Internal Error" messages all showing the same stacktrace (see below). While it's true that this class is not on the project's classpath, it also doesn't matter because this is runtime-only dependency (that dependency actually has scope 'provided' in our associated Maven pom as it's deployed in our Tomcat's root classloader). java.lang.NoClassDefFoundError: org/objectweb/jotm/Jotm at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.privateGetMethodRecursive(Class.java:3048) at java.lang.Class.getMethod0(Class.java:3018) at java.lang.Class.getMethod(Class.java:1784) at org.springframework.ide.eclipse.beans.core.autowire.internal.provider.AutowireDependencyProvider.isFactoryForType(AutowireDependencyProvider.java:382) at org.springframework.ide.eclipse.beans.core.autowire.internal.provider.AutowireDependencyProvider.getBeansForType(AutowireDependencyProvider.java:365) at org.springframework.ide.eclipse.beans.core.autowire.internal.provider.AutowireDependencyProvider.getBeansForType(AutowireDependencyProvider.java:346) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector$1.doWithActiveProjectClassLoader(AutowireHyperlinkDetector.java:139) at org.springframework.ide.eclipse.core.java.JdtUtils$DefaultProjectClassLoaderSupport.executeCallback(JdtUtils.java:977) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinksHelper(AutowireHyperlinkDetector.java:136) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinksHelper(AutowireHyperlinkDetector.java:117) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinksHelper(AutowireHyperlinkDetector.java:94) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinks(AutowireHyperlinkDetector.java:69) at org.eclipse.jdt.internal.ui.javaeditor.JavaElementHyperlinkDetector.detectHyperlinks(JavaElementHyperlinkDetector.java:114) at org.eclipse.ui.texteditor.HyperlinkDetectorRegistry$HyperlinkDetectorDelegate.detectHyperlinks(HyperlinkDetectorRegistry.java:80) at org.eclipse.jface.text.hyperlink.HyperlinkManager.findHyperlinks(HyperlinkManager.java:289) at org.eclipse.jface.text.hyperlink.HyperlinkManager.findHyperlinks(HyperlinkManager.java:261) at org.eclipse.jface.text.hyperlink.HyperlinkManager.mouseMove(HyperlinkManager.java:469) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:212) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4454) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1388) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3799) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3409) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) 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.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) Caused by: java.lang.ClassNotFoundException: org.objectweb.jotm.Jotm at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 47 more
    via by Tobias Gierke,
  • GitHub comment 121#256136079
    via GitHub by velvia
    ,
    • java.lang.NoClassDefFoundError: org/objectweb/jotm/Jotm at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.privateGetMethodRecursive(Class.java:3048) at java.lang.Class.getMethod0(Class.java:3018) at java.lang.Class.getMethod(Class.java:1784) at org.springframework.ide.eclipse.beans.core.autowire.internal.provider.AutowireDependencyProvider.isFactoryForType(AutowireDependencyProvider.java:382) at org.springframework.ide.eclipse.beans.core.autowire.internal.provider.AutowireDependencyProvider.getBeansForType(AutowireDependencyProvider.java:365) at org.springframework.ide.eclipse.beans.core.autowire.internal.provider.AutowireDependencyProvider.getBeansForType(AutowireDependencyProvider.java:346) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector$1.doWithActiveProjectClassLoader(AutowireHyperlinkDetector.java:139) at org.springframework.ide.eclipse.core.java.JdtUtils$DefaultProjectClassLoaderSupport.executeCallback(JdtUtils.java:977) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinksHelper(AutowireHyperlinkDetector.java:136) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinksHelper(AutowireHyperlinkDetector.java:117) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinksHelper(AutowireHyperlinkDetector.java:94) at org.springframework.ide.eclipse.quickfix.hyperlinks.AutowireHyperlinkDetector.addHyperlinks(AutowireHyperlinkDetector.java:69) at org.eclipse.jdt.internal.ui.javaeditor.JavaElementHyperlinkDetector.detectHyperlinks(JavaElementHyperlinkDetector.java:114) at org.eclipse.ui.texteditor.HyperlinkDetectorRegistry$HyperlinkDetectorDelegate.detectHyperlinks(HyperlinkDetectorRegistry.java:80) at org.eclipse.jface.text.hyperlink.HyperlinkManager.findHyperlinks(HyperlinkManager.java:289) at org.eclipse.jface.text.hyperlink.HyperlinkManager.findHyperlinks(HyperlinkManager.java:261) at org.eclipse.jface.text.hyperlink.HyperlinkManager.mouseMove(HyperlinkManager.java:469) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:212) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4454) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1388) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3799) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3409) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) 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.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) Caused by: java.lang.ClassNotFoundException: org.objectweb.jotm.Jotm at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 47 more

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