Bug 293028 - [quick diff] Assertion failure in DocumentLineDiffer.handleAboutToBeChanged
Summary: [quick diff] Assertion failure in DocumentLineDiffer.handleAboutToBeChanged
Status: CLOSED DUPLICATE of bug 289276
Alias: None
Product: Platform
Classification: Eclipse Project
Component: Text (show other bugs)
Version: 3.5   Edit
Hardware: PC Windows XP
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Platform-Text-Inbox CLA
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Reported: 2009-10-22 08:40 EDT by Ben Vitale CLA
Modified: 2009-10-22 08:51 EDT (History)
1 user (show)

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Description Ben Vitale CLA 2009-10-22 08:40:36 EDT 
User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 (.NET CLR 3.5.30729)
Build Identifier: I20090611-1540

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.internal.texteditor.quickdiff.DocumentLineDiffer.handleAboutToBeChanged(DocumentLineDiffer.java:794)
at org.eclipse.ui.internal.texteditor.quickdiff.DocumentLineDiffer.documentAboutToBeChanged(DocumentLineDiffer.java:763)
at org.eclipse.jface.text.AbstractDocument.fireDocumentAboutToBeChanged(AbstractDocument.java:645)
at org.eclipse.jface.text.AbstractDocument.replace(AbstractDocument.java:1148)
at org.eclipse.jface.text.AbstractDocument.replace(AbstractDocument.java:1176)
at org.eclipse.jface.text.projection.ProjectionTextStore.replace(ProjectionTextStore.java:111)
at org.eclipse.jface.text.AbstractDocument.replace(AbstractDocument.java:1150)
at org.eclipse.jface.text.AbstractDocument.replace(AbstractDocument.java:1176)
at org.eclipse.jface.text.projection.ProjectionDocument.replace(ProjectionDocument.java:630)
at org.eclipse.jface.text.DefaultDocumentAdapter.replaceTextRange(DefaultDocumentAdapter.java:248)
at org.eclipse.swt.custom.StyledText.modifyContent(StyledText.java:6634)
at org.eclipse.swt.custom.StyledText.sendKeyEvent(StyledText.java:7442)
at org.eclipse.swt.custom.StyledText.doBackspace(StyledText.java:2252)
at org.eclipse.swt.custom.StyledText.invokeAction(StyledText.java:6442)
at org.eclipse.swt.custom.StyledText.handleKey(StyledText.java:5818)
at org.eclipse.swt.custom.StyledText.handleKeyDown(StyledText.java:5839)
at org.eclipse.swt.custom.StyledText$7.handleEvent(StyledText.java:5541)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1027)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1012)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1040)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1036)
at org.eclipse.swt.widgets.Widget.wmChar(Widget.java:1368)
at org.eclipse.swt.widgets.Control.WM_CHAR(Control.java:4053)
at org.eclipse.swt.widgets.Canvas.WM_CHAR(Canvas.java:346)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3946)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:342)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4589)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2409)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3471)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
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:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
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:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)

Reproducible: Sometimes

Steps to Reproduce:
Not able to easily reproduce this, but it appears on the surface that the fix for bug 161236 may simply need to be applied to handleAboutToBeChanged.
Comment 1 Dani Megert CLA 2009-10-22 08:51:08 EDT 
>Not able to easily reproduce this
It would be extremely helpful to have steps.

*** This bug has been marked as a duplicate of bug 289276 ***