java.lang.ClassNotFoundException: org.eclipse.core.runtime.Plugin
   at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:402)
   at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:347)
   at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
   at java.lang.ClassLoader.loadClass(libgcj.so.81)
   at org.eclipse.core.runtime.Platform.getPlugin(Platform.java:737)
   at org.eclipse.ui.views.navigator.ResourceNavigator.initLinkingEnabled(ResourceNavigator.java:410)
   at org.eclipse.ui.views.navigator.ResourceNavigator.<init>(ResourceNavigator.java:238)
   at java.lang.Class.newInstance(libgcj.so.81)
   at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:157)
   at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:759)
   at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
   at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
   at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:234)
   at org.eclipse.ui.internal.registry.ViewDescriptor.createView(ViewDescriptor.java:69)
   at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:292)
   at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:197)
   at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:566)
   at org.eclipse.ui.internal.WorkbenchPage$ActivationList.setActive(WorkbenchPage.java:3915)
   at org.eclipse.ui.internal.WorkbenchPage.restoreState(WorkbenchPage.java:2929)
   at org.eclipse.ui.internal.WorkbenchWindow.restoreState(WorkbenchWindow.java:1936)
   at org.eclipse.ui.internal.Workbench.doRestoreState(Workbench.java:2873)
   at org.eclipse.ui.internal.Workbench.access$14(Workbench.java:2821)
   at org.eclipse.ui.internal.Workbench$19.run(Workbench.java:1697)
   at org.eclipse.ui.internal.Workbench.runStartupWithProgress(Workbench.java:1437)
   at org.eclipse.ui.internal.Workbench.restoreState(Workbench.java:1695)
   at org.eclipse.ui.internal.Workbench.access$12(Workbench.java:1666)
   at org.eclipse.ui.internal.Workbench$17.run(Workbench.java:1545)
   at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
   at org.eclipse.ui.internal.Workbench.restoreState(Workbench.java:1489)
   at org.eclipse.ui.internal.WorkbenchConfigurer.restoreState(WorkbenchConfigurer.java:183)
   at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:702)
   at org.eclipse.ui.internal.Workbench.init(Workbench.java:1101)
   at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1863)
   at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:422)
   at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
   at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:95)
   at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
   at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
   at java.lang.reflect.Method.invoke(libgcj.so.81)
   at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
   at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
   at org.eclipse.core.launcher.Main.run(Main.java:977)
   at org.eclipse.core.launcher.Main.main(Main.java:952)