252921 – Compare Word plugin goes into infinite loop

Bug 252921 - Compare Word plugin goes into infinite loop

Summary: Compare Word plugin goes into infinite loop

Status:	NEW

Alias:	None

Product:	Platform
Classification:	Eclipse Project
Component:	Compare (show other bugs)
Version:	3.4.1
Hardware:	PC Windows XP

Importance:	P3 normal (vote)
Target Milestone:	---
Assignee:	Platform-Compare-Inbox
QA Contact:

URL:
Whiteboard:
Keywords:

Depends on:
Blocks:

Reported:	2008-10-30 23:46 EDT by Glenn Meter
Modified:	2019-09-06 16:13 EDT (History)
CC List:	3 users (show)

See Also:

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Description Glenn Meter

2008-10-30 23:46:44 EDT

Build ID: M20080911-1700

Steps To Reproduce:
1. Install the Compare Word plugin in Eclipse 3.4.1 or run the Compare Word plugin in Eclipse 3.5 M2.
2. Select two Word *.doc documents in a navigator pane.
3. Compare with -> Each other
4. Watch the toolbar flicker.
5. Get the dialog that Eclipse has crashed since SWT has run out of handles.

The stack crawl from the log file is below. Looks like it's in an infinite loop.

org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTError: No more handles)
at org.eclipse.swt.SWT.error(SWT.java:3777)
at org.eclipse.swt.SWT.error(SWT.java:3695)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3800)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3425)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
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:193)
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:386)
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:549)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
at org.eclipse.equinox.launcher.Main.main(Main.java:1212)
Caused by: org.eclipse.swt.SWTError: No more handles
at org.eclipse.swt.SWT.error(SWT.java:3803)
at org.eclipse.swt.SWT.error(SWT.java:3695)
at org.eclipse.swt.SWT.error(SWT.java:3666)
at org.eclipse.swt.widgets.Widget.error(Widget.java:463)
at org.eclipse.swt.widgets.Control.createHandle(Control.java:612)
at org.eclipse.swt.widgets.Composite.createHandle(Composite.java:303)
at org.eclipse.swt.widgets.Decorations.createHandle(Decorations.java:418)
at org.eclipse.swt.widgets.Shell.createHandle(Shell.java:543)
at org.eclipse.swt.widgets.Control.createWidget(Control.java:628)
at org.eclipse.swt.widgets.Scrollable.createWidget(Scrollable.java:133)
at org.eclipse.swt.widgets.Decorations.createWidget(Decorations.java:426)
at org.eclipse.swt.widgets.Shell.<init>(Shell.java:288)
at org.eclipse.swt.widgets.Shell.<init>(Shell.java:365)
at org.eclipse.jface.window.Window.createShell(Window.java:487)
at org.eclipse.jface.window.Window.create(Window.java:430)
at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1089)
at org.eclipse.jface.window.Window.open(Window.java:790)
at org.eclipse.jface.dialogs.MessageDialog.openQuestion(MessageDialog.java:371)
at org.eclipse.compare.internal.win32.WordMergeViewer.saveDocument(WordMergeViewer.java:245)
at org.eclipse.compare.internal.win32.WordMergeViewer$4.run(WordMergeViewer.java:272)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:178)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:4251)
at org.eclipse.compare.internal.win32.WordMergeViewer.flush(WordMergeViewer.java:269)
at org.eclipse.compare.CompareEditorInput.flushViewer(CompareEditorInput.java:1023)
at org.eclipse.compare.CompareEditorInput.flushViewers(CompareEditorInput.java:1016)
at org.eclipse.compare.internal.ResourceCompareInput.getAdapter(ResourceCompareInput.java:434)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:661)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:678)
at org.eclipse.compare.CompareEditorInput.getAdapter(CompareEditorInput.java:267)
at org.eclipse.compare.internal.ResourceCompareInput.getAdapter(ResourceCompareInput.java:445)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:661)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:678)
at org.eclipse.compare.internal.CompareEditor.getAdapter(CompareEditor.java:179)
at org.eclipse.ui.internal.util.Util.getAdapter(Util.java:106)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getShowInSource(ActivePartSourceProvider.java:249)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getContext(ActivePartSourceProvider.java:253)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getCurrentState(ActivePartSourceProvider.java:309)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.checkActivePart(ActivePartSourceProvider.java:150)
at org.eclipse.ui.internal.services.ActivePartSourceProvider$2.windowDeactivated(ActivePartSourceProvider.java:125)
at org.eclipse.ui.internal.Workbench$13.run(Workbench.java:824)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.ui.internal.Workbench.fireWindowDeactivated(Workbench.java:822)
at org.eclipse.ui.internal.WorkbenchWindow$26.shellDeactivated(WorkbenchWindow.java:3012)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:105)
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:1008)
at org.eclipse.swt.widgets.Decorations.WM_ACTIVATE(Decorations.java:1625)
at org.eclipse.swt.widgets.Shell.WM_ACTIVATE(Shell.java:2013)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3784)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:337)
at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1576)
at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:1937)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4528)
at org.eclipse.swt.internal.win32.OS.BringWindowToTop(Native Method)
at org.eclipse.swt.widgets.Decorations.bringToTop(Decorations.java:229)
at org.eclipse.swt.widgets.Shell.open(Shell.java:1138)
at org.eclipse.jface.window.Window.open(Window.java:797)
at org.eclipse.jface.dialogs.MessageDialog.openQuestion(MessageDialog.java:371)
at org.eclipse.compare.internal.win32.WordMergeViewer.saveDocument(WordMergeViewer.java:245)
at org.eclipse.compare.internal.win32.WordMergeViewer$4.run(WordMergeViewer.java:272)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:178)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:4251)
at org.eclipse.compare.internal.win32.WordMergeViewer.flush(WordMergeViewer.java:269)
at org.eclipse.compare.CompareEditorInput.flushViewer(CompareEditorInput.java:1023)
at org.eclipse.compare.CompareEditorInput.flushViewers(CompareEditorInput.java:1016)
at org.eclipse.compare.internal.ResourceCompareInput.getAdapter(ResourceCompareInput.java:434)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:661)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:678)
at org.eclipse.compare.CompareEditorInput.getAdapter(CompareEditorInput.java:267)
at org.eclipse.compare.internal.ResourceCompareInput.getAdapter(ResourceCompareInput.java:445)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:661)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:678)
at org.eclipse.compare.internal.CompareEditor.getAdapter(CompareEditor.java:179)
at org.eclipse.ui.internal.util.Util.getAdapter(Util.java:106)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getShowInSource(ActivePartSourceProvider.java:249)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getContext(ActivePartSourceProvider.java:253)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getCurrentState(ActivePartSourceProvider.java:309)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.checkActivePart(ActivePartSourceProvider.java:150)
at org.eclipse.ui.internal.services.ActivePartSourceProvider$2.windowDeactivated(ActivePartSourceProvider.java:125)
at org.eclipse.ui.internal.Workbench$13.run(Workbench.java:824)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.ui.internal.Workbench.fireWindowDeactivated(Workbench.java:822)
at org.eclipse.ui.internal.WorkbenchWindow$26.shellDeactivated(WorkbenchWindow.java:3012)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:105)
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:1008)
at org.eclipse.swt.widgets.Decorations.WM_ACTIVATE(Decorations.java:1625)
at org.eclipse.swt.widgets.Shell.WM_ACTIVATE(Shell.java:2013)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3784)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:337)
at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1576)
at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:1937)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4528)
at org.eclipse.swt.internal.win32.OS.BringWindowToTop(Native Method)
at org.eclipse.swt.widgets.Decorations.bringToTop(Decorations.java:229)
at org.eclipse.swt.widgets.Shell.open(Shell.java:1138)
at org.eclipse.jface.window.Window.open(Window.java:797)
at org.eclipse.jface.dialogs.MessageDialog.openQuestion(MessageDialog.java:371)
at org.eclipse.compare.internal.win32.WordMergeViewer.saveDocument(WordMergeViewer.java:245)
at org.eclipse.compare.internal.win32.WordMergeViewer$4.run(WordMergeViewer.java:272)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:178)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:4251)
at org.eclipse.compare.internal.win32.WordMergeViewer.flush(WordMergeViewer.java:269)
at org.eclipse.compare.CompareEditorInput.flushViewer(CompareEditorInput.java:1023)
at org.eclipse.compare.CompareEditorInput.flushViewers(CompareEditorInput.java:1016)
at org.eclipse.compare.internal.ResourceCompareInput.getAdapter(ResourceCompareInput.java:434)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:661)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:678)
at org.eclipse.compare.CompareEditorInput.getAdapter(CompareEditorInput.java:267)
at org.eclipse.compare.internal.ResourceCompareInput.getAdapter(ResourceCompareInput.java:445)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:661)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:678)
at org.eclipse.compare.internal.CompareEditor.getAdapter(CompareEditor.java:179)
at org.eclipse.ui.internal.util.Util.getAdapter(Util.java:106)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getShowInSource(ActivePartSourceProvider.java:249)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getContext(ActivePartSourceProvider.java:253)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getCurrentState(ActivePartSourceProvider.java:309)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.checkActivePart(ActivePartSourceProvider.java:150)
at org.eclipse.ui.internal.services.ActivePartSourceProvider$2.windowDeactivated(ActivePartSourceProvider.java:125)
at org.eclipse.ui.internal.Workbench$13.run(Workbench.java:824)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.ui.internal.Workbench.fireWindowDeactivated(Workbench.java:822)
at org.eclipse.ui.internal.WorkbenchWindow$26.shellDeactivated(WorkbenchWindow.java:3012)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:105)
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:1008)
at org.eclipse.swt.widgets.Decorations.WM_ACTIVATE(Decorations.java:1625)
at org.eclipse.swt.widgets.Shell.WM_ACTIVATE(Shell.java:2013)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3784)
at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:337)
at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1576)
at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:1937)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4528)
at org.eclipse.swt.internal.win32.OS.BringWindowToTop(Native Method)
at org.eclipse.swt.widgets.Decorations.bringToTop(Decorations.java:229)
at org.eclipse.swt.widgets.Shell.open(Shell.java:1138)
at org.eclipse.jface.window.Window.open(Window.java:797)
at org.eclipse.jface.dialogs.MessageDialog.openQuestion(MessageDialog.java:371)
at org.eclipse.compare.internal.win32.WordMergeViewer.saveDocument(WordMergeViewer.java:245)
at org.eclipse.compare.internal.win32.WordMergeViewer$4.run(WordMergeViewer.java:272)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:178)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:4251)
at org.eclipse.compare.internal.win32.WordMergeViewer.flush(WordMergeViewer.java:269)
at org.eclipse.compare.CompareEditorInput.flushViewer(CompareEditorInput.java:1023)
at org.eclipse.compare.CompareEditorInput.flushViewers(CompareEditorInput.java:1016)
at org.eclipse.compare.internal.ResourceCompareInput.getAdapter(ResourceCompareInput.java:434)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:661)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:678)
at org.eclipse.compare.CompareEditorInput.getAdapter(CompareEditorInput.java:267)
at org.eclipse.compare.internal.ResourceCompareInput.getAdapter(ResourceCompareInput.java:445)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:661)
at org.eclipse.compare.internal.Utilities.getAdapter(Utilities.java:678)
at org.eclipse.compare.internal.CompareEditor.getAdapter(CompareEditor.java:179)
at org.eclipse.ui.internal.util.Util.getAdapter(Util.java:106)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getShowInSource(ActivePartSourceProvider.java:249)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getContext(ActivePartSourceProvider.java:253)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.getCurrentState(ActivePartSourceProvider.java:309)
at org.eclipse.ui.internal.services.ActivePartSourceProvider.checkActivePart(ActivePartSourceProvider.java:150)
at org.eclipse.ui.internal.services.ActivePartSourceProvider$2.windowDeactivated(ActivePartSourceProvider.java:125)
at org.eclipse.ui.internal.Workbench$13.run(Workbench.java:824)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.ui.internal.Workbench.fireWindowDeactivated(Workbench.java:822)
at org.eclipse.ui.internal.WorkbenchWindow$26.shellDeactivated(WorkbenchWindow.java:3012)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:105)
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:1008)
at org.eclipse.swt.widgets.Decorations.WM_ACTIVATE(Decorations.java:1625)
at org.eclipse.swt.widgets.Shell.WM_ACTIVATE(Shell.java:2013)
...
[Cut due to maximum bug length]

More information:
I'm running Windows XP SP3.
I'm running Word 2007 (12.0.6311.5000) SP1 MSO (12.0.6320.5000)

Once when I was trying to debug what was happening I got the proper Word compare view.  So it may be timing related. Let me know if you need help debugging what's happening.  When I run without any breakpoints set it crashes every time.

Comment 1 Tomasz Zarna

2008-10-31 06:53:31 EDT

Mike, would you mind taking a look at it?

Comment 2 Michael Valenta

2008-10-31 07:45:44 EDT

The problem is that the ResourceCompareInput used by Compare With>Each Other calls flushViewers when it is asked to adapt to IFile. This has always been a problem and is another one of the motivations for fixing Compare with>Each Other. Perhaps an easy fix is to have ResourceCompareInput flush once and cache the IFile so it doesn't have to flush again. Another factor is that fact that the Word compare is prompting even though it is not dirty (i.e. the user hasn't made any modifications). Fixing that may fix the problem as well. 

Tomek, if you don't think you'll have time to look into this, I'll try and find some time.

Comment 3 Eclipse Webmaster

2019-09-06 16:13:29 EDT

This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.