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Comparing two versions of ClassScope (version 1.43 and 1.42) led to this error: org.eclipse.jface.text.Assert$AssertionFailedException: Assertion failed: at java.lang.Throwable.<init>(Throwable.java) at java.lang.Throwable.<init>(Throwable.java) at org.eclipse.jface.text.Assert$AssertionFailedException.<init>(Assert.java:54) at org.eclipse.jface.text.Assert.isTrue(Assert.java:175) at org.eclipse.jface.text.Assert.isTrue(Assert.java) at org.eclipse.jface.text.projection.ProjectionMapping.toImageRegion(ProjectionMapping.java) at org.eclipse.jface.text.projection.ProjectionMapping.toImageRegion(ProjectionMapping.java) at org.eclipse.jface.text.TextViewer.modelRange2WidgetRange(TextViewer.java) at org.eclipse.jface.text.TextViewer.modelStyleRange2WidgetStyleRange(TextViewer.java) at org.eclipse.jface.text.TextViewer.addPresentation(TextViewer.java:4000) at org.eclipse.jface.text.TextViewer.changeTextPresentation(TextViewer.java:4087) at org.eclipse.jface.text.presentation.PresentationReconciler.applyTextRegionCollection(PresentationReconciler.java:563) at org.eclipse.jface.text.presentation.PresentationReconciler.processDamage(PresentationReconciler.java:552) at org.eclipse.jface.text.presentation.PresentationReconciler.access$5(PresentationReconciler.java:548) at org.eclipse.jface.text.presentation.PresentationReconciler$InternalListener.textChanged(PresentationReconciler.java:218) at org.eclipse.jface.text.TextViewer.updateTextListeners(TextViewer.java:2233) at org.eclipse.jface.text.TextViewer.fireRedrawChanged(TextViewer.java:4243) at org.eclipse.jface.text.TextViewer.enabledRedrawing(TextViewer.java:4297) at org.eclipse.jface.text.TextViewer.setRedraw(TextViewer.java:4351) at org.eclipse.jface.text.TextViewer.setVisibleRegion(TextViewer.java:3085) at org.eclipse.compare.contentmergeviewer.TextMergeViewer.setDocument(TextMergeViewer.java:1938) at org.eclipse.compare.contentmergeviewer.TextMergeViewer.updateContent(TextMergeViewer.java:1632) at org.eclipse.compare.contentmergeviewer.ContentMergeViewer.internalRefresh(ContentMergeViewer.java:661) at org.eclipse.compare.contentmergeviewer.ContentMergeViewer.inputChanged(ContentMergeViewer.java:558) at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:238) at org.eclipse.compare.CompareViewerSwitchingPane.setInput(CompareViewerSwitchingPane.java:302) at org.eclipse.compare.CompareEditorInput$13.run(CompareEditorInput.java:559) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:84) at org.eclipse.compare.CompareEditorInput.feed2(CompareEditorInput.java:550) at org.eclipse.compare.CompareEditorInput.access$3(CompareEditorInput.java:549) at org.eclipse.compare.CompareEditorInput$9.selectionChanged(CompareEditorInput.java:481) at org.eclipse.compare.CompareViewerSwitchingPane.selectionChanged(CompareViewerSwitchingPane.java:252) at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java) at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java) at org.eclipse.core.runtime.Platform.run(Platform.java) at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:157) at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:1310) at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:666) at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:690) at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:178) at org.eclipse.jface.util.OpenStrategy.access$3(OpenStrategy.java) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java) at org.eclipse.jface.window.Window.runEventLoop(Window.java:670) at org.eclipse.jface.window.Window.open(Window.java:650) at org.eclipse.team.internal.ccvs.ui.actions.CompareWithRevisionAction$3.run(CompareWithRevisionAction.java:97) at org.eclipse.team.internal.ccvs.ui.repo.RepositoryManager.run(RepositoryManager.java:645) at org.eclipse.team.internal.ccvs.ui.actions.CVSAction$1.run(CVSAction.java:225) at org.eclipse.team.internal.ccvs.ui.actions.CVSAction$2.run(CVSAction.java:244) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:84) at org.eclipse.team.internal.ccvs.ui.actions.CVSAction.run(CVSAction.java:241) at org.eclipse.team.internal.ccvs.ui.actions.CompareWithRevisionAction.execute(CompareWithRevisionAction.java:90) at org.eclipse.team.internal.ccvs.ui.actions.CVSAction.run(CVSAction.java:52) at org.eclipse.ui.actions.ActionDelegate.runWithEvent(ActionDelegate.java:71) at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:259) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:550) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:502) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:435) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1561) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1532) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:257) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:140) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:90) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:279) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:241) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:117) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:41) at java.lang.reflect.Method.invoke(Method.java:386) at org.eclipse.core.launcher.Main.basicRun(Main.java:267) at org.eclipse.core.launcher.Main.run(Main.java:692) at org.eclipse.core.launcher.Main.main(Main.java:676) I got it only once. Could not reproduce.
I get this one very often when trying to compare. If the compare view is open, I get it when I click in the top tree that contains all differences.
Set to critical as I get it very often and it makes compare almost unusable.
Are you using j9?
yes
I am using build: java version "1.4.1" J9 - VM for the Java(TM) platform (build 2.1) IBM J9SE VM (build 2.1, J2RE 1.4.1 IBM J9 build 20040121 (JIT enabled))
*** This bug has been marked as a duplicate of 55814 ***
