Plugin error

eclipse.buildId=M20120914-1800
java.version=1.7.0_02
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Framework arguments:  -product org.eclipse.epp.package.mobile.product
Command-line arguments:  -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.mobile.product
 
Error
Fri Dec 28 13:12:24 EET 2012
Problems occurred when invoking code from plug-in: "org.eclipse.jface".
 
org.eclipse.core.runtime.AssertionFailedException: assertion failed: 
	at org.eclipse.core.runtime.Assert.isTrue(Assert.java:110)
	at org.eclipse.core.runtime.Assert.isTrue(Assert.java:96)
	at org.eclipse.ui.texteditor.EditorStatusLine$StatusLineClearer.selectionChanged(EditorStatusLine.java:41)
	at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:164)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
	at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:162)
	at org.eclipse.jface.text.TextViewer.fireSelectionChanged(TextViewer.java:2738)
	at org.eclipse.jface.text.TextViewer.selectionChanged(TextViewer.java:2717)
	at org.eclipse.jface.text.TextViewer.setSelectedRange(TextViewer.java:2402)
	at org.eclipse.jface.text.TextViewer$ViewerState.restore(TextViewer.java:1237)
	at org.eclipse.jface.text.TextViewer.enabledRedrawing(TextViewer.java:5124)
	at org.eclipse.jface.text.TextViewer.enabledRedrawing(TextViewer.java:5099)
	at org.eclipse.jface.text.TextViewer.setRedraw(TextViewer.java:5184)
	at org.eclipse.jface.text.TextViewer.setRedraw(TextViewer.java:5158)
	at org.eclipse.jface.text.TextViewer$RewriteTarget.setRedraw(TextViewer.java:1067)
	at org.eclipse.jface.text.TextViewer$DocumentRewriteSessionListener.documentRewriteSessionChanged(TextViewer.java:1478)
	at org.eclipse.jface.text.AbstractDocument.fireRewriteSessionChanged(AbstractDocument.java:1559)
	at org.eclipse.jface.text.AbstractDocument.stopRewriteSession(AbstractDocument.java:1648)
	at org.eclipse.core.internal.filebuffers.SynchronizableDocument.stopRewriteSession(SynchronizableDocument.java:113)
	at org.eclipse.ltk.core.refactoring.TextChange.performEdits(TextChange.java:281)
	at org.eclipse.ltk.core.refactoring.TextFileChange.access$0(TextFileChange.java:1)
	at org.eclipse.ltk.core.refactoring.TextFileChange$1.run(TextFileChange.java:275)
	at org.eclipse.ui.internal.editors.text.UISynchronizationContext.run(UISynchronizationContext.java:34)
	at org.eclipse.core.internal.filebuffers.TextFileBufferManager.execute(TextFileBufferManager.java:629)
	at org.eclipse.ltk.core.refactoring.TextFileChange.performEdits(TextFileChange.java:287)
	at org.eclipse.ltk.core.refactoring.TextChange.perform(TextChange.java:238)
	at org.eclipse.jdt.ui.text.java.correction.ChangeCorrectionProposal.performChange(ChangeCorrectionProposal.java:185)
	at org.eclipse.jdt.internal.ui.text.correction.proposals.LinkedCorrectionProposal.performChange(LinkedCorrectionProposal.java:150)
	at org.eclipse.jdt.ui.text.java.correction.CUCorrectionProposal.apply(CUCorrectionProposal.java:184)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup.insertProposal(CompletionProposalPopup.java:945)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup.insertSelectedProposalWithMask(CompletionProposalPopup.java:891)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$27(CompletionProposalPopup.java:887)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup$5.widgetDefaultSelected(CompletionProposalPopup.java:667)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:119)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4169)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3758)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1029)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:923)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588)
	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(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	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)