Eclipse启动报错java.lang.NoClassDefFoundError

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!ENTRY org.eclipse.osgi 4 0 2014-02-23 15:11:58.914  
!MESSAGE Application error  
!STACK 1  
java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jface.preference.PreferenceConverter  
    at org.eclipse.ui.internal.themes.ThemeElementHelper.installFont(ThemeElementHelper.java:103)  
    at org.eclipse.ui.internal.themes.ThemeElementHelper.populateRegistry(ThemeElementHelper.java:59)  
    at org.eclipse.ui.internal.Workbench$27.runWithException(Workbench.java:1553)  
    at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)  
    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)  
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)  
    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4144)  
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)  
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2523)  
    at org.eclipse.ui.internal.Workbench.access$7(Workbench.java:2431)  
    at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:586)  
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)  
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543)  
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)  
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)  
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)  
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)  
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)  
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)  
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)  
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)  
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)  
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)  
    at java.lang.reflect.Method.invoke(Unknown Source)  
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)  
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)  
    at org.eclipse.equinox.launcher.Main.run(Main.java:1438)  

在csdn中到有文章：http://blog.csdn.net/lisa0220/article/details/8676228 把： workspace/.metadata/.plugins/org.eclipse.core.resources/.snap 删除后再启动即可。

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