https://bugzilla.redhat.com/show_bug.cgi?id=1351538
--- Comment #1 from lejeczek peljasz@yahoo.co.uk --- !ENTRY org.eclipse.jface 4 2 2016-06-30 10:35:39.300 !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jface". !STACK 0 java.lang.NoClassDefFoundError: Could not initialize class org.eclipse.jgit.util.FS at org.eclipse.egit.ui.internal.preferences.GlobalConfigurationPreferencePage.init(GlobalConfigurationPreferencePage.java:236) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(WorkbenchPreferenceNode.java:58) at org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1280) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:355) at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1167) at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:608) at org.eclipse.jface.preference.PreferenceDialog$5.lambda$0(PreferenceDialog.java:656) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.preference.PreferenceDialog$5.selectionChanged(PreferenceDialog.java:653) at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:878) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:173) at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:875) at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1244) at org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1270) at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:265) at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:259) at org.eclipse.jface.util.OpenStrategy$1.lambda$1(OpenStrategy.java:431) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4517) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4135) at org.eclipse.jface.window.Window.runEventLoop(Window.java:818) at org.eclipse.jface.window.Window.open(Window.java:794) at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:211) at org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:63) at org.eclipse.jface.action.Action.runWithEvent(Action.java:473) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:565) at org.eclipse.jface.action.ActionContributionItem.lambda$4(ActionContributionItem.java:397) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5208) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1340) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4542) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4132) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1119) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1020) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:150) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:687) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:604) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138) 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:388) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243) 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:498) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:610) at org.eclipse.equinox.launcher.Main.run(Main.java:1519) at org.eclipse.equinox.launcher.Main.main(Main.java:1492)