java.lang.NoClassDefFoundError: org/apache/log4j/Logger

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    java.lang.NoClassDefFoundError: org/apache/log4j/Logger
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    java.lang.NoClassDefFoundError: org/apache/log4j/Logger

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    Root Cause Analysis

    1. java.lang.NoClassDefFoundError

      org/apache/log4j/Logger

      at com.salesforce.ide.core.ForceIdeCorePlugin.<clinit>()
    2. com.salesforce.ide
      ForceIdeCorePlugin.<clinit>
      1. com.salesforce.ide.core.ForceIdeCorePlugin.<clinit>(ForceIdeCorePlugin.java:30)
      1 frame
    3. Java RT
      Class.newInstance
      1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
      2. sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
      3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
      4. java.lang.reflect.Constructor.newInstance(Unknown Source)
      5. java.lang.Class.newInstance0(Unknown Source)
      6. java.lang.Class.newInstance(Unknown Source)
      6 frames
    4. Eclipse OSGi
      AbstractBundle.start
      1. org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:136)
      2. org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:970)
      3. org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:346)
      4. org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:260)
      4 frames
    5. Eclipse OSGi
      EclipseLazyStarter.postFindLocalClass
      1. org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:400)
      2. org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:111)
      2 frames
    6. Eclipse OSGi
      DefaultClassLoader.loadClass
      1. org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:417)
      2. org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:189)
      3. org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:340)
      4. org.eclipse.osgi.framework.internal.core.SingleSourcePackage.loadClass(SingleSourcePackage.java:37)
      5. org.eclipse.osgi.framework.internal.core.BundleLoader.findClassInternal(BundleLoader.java:405)
      6. org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:369)
      7. org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:357)
      8. org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
      8 frames
    7. Java RT
      Class.newInstance
      1. java.lang.ClassLoader.loadClass(Unknown Source)
      2. java.lang.ClassLoader.loadClassInternal(Unknown Source)
      3. java.lang.Class.getDeclaredConstructors0(Native Method)
      4. java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
      5. java.lang.Class.getConstructor0(Unknown Source)
      6. java.lang.Class.newInstance0(Unknown Source)
      7. java.lang.Class.newInstance(Unknown Source)
      7 frames
    8. Eclipse OSGi
      AbstractBundle.start
      1. org.eclipse.osgi.framework.internal.core.AbstractBundle.loadBundleActivator(AbstractBundle.java:136)
      2. org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:970)
      3. org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:346)
      4. org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:260)
      4 frames
    9. Eclipse OSGi
      EclipseLazyStarter.postFindLocalClass
      1. org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:400)
      2. org.eclipse.core.runtime.internal.adaptor.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:111)
      2 frames
    10. Eclipse OSGi
      DefaultClassLoader.loadClass
      1. org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:417)
      2. org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:189)
      3. org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:340)
      4. org.eclipse.osgi.framework.internal.core.SingleSourcePackage.loadClass(SingleSourcePackage.java:37)
      5. org.eclipse.osgi.framework.internal.core.BundleLoader.findClassInternal(BundleLoader.java:405)
      6. org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:369)
      7. org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:357)
      8. org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
      8 frames
    11. Java RT
      ClassLoader.loadClassInternal
      1. java.lang.ClassLoader.loadClass(Unknown Source)
      2. java.lang.ClassLoader.loadClassInternal(Unknown Source)
      2 frames
    12. com.salesforce.ide
      IntroStartup.earlyStartup
      1. com.salesforce.ide.ui.editors.intro.browser.IntroStartup.earlyStartup(IntroStartup.java:44)
      1 frame
    13. Eclipse UI
      EarlyStartupRunnable.run
      1. org.eclipse.ui.internal.EarlyStartupRunnable.runEarlyStartup(EarlyStartupRunnable.java:87)
      2. org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:66)
      2 frames
    14. Eclipse Core
      SafeRunner.run
      1. org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
      1 frame
    15. Eclipse UI
      Workbench$54.run
      1. org.eclipse.ui.internal.Workbench$54.run(Workbench.java:2190)
      1 frame
    16. Eclipse Jobs
      Worker.run
      1. org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
      1 frame