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Bug 322696 - NPE in handleCursorPositionChanged
Summary: NPE in handleCursorPositionChanged
Status: CLOSED DUPLICATE of bug 320523
Alias: None
Product: JDT
Classification: Eclipse Project
Component: UI (show other bugs)
Version: 3.6   Edit
Hardware: PC Mac OS X - Carbon (unsup.)
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: JDT-UI-Inbox CLA
QA Contact:
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Keywords:
Depends on:
Blocks:
 
Reported: 2010-08-13 19:31 EDT by Greg Watson CLA
Modified: 2010-08-17 10:06 EDT (History)
1 user (show)

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Description Greg Watson CLA 2010-08-13 19:31:59 EDT 
I just go the following NPE:

java.lang.NullPointerException
at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.handleCursorPositionChanged(JavaEditor.java:3745)
at org.eclipse.ui.texteditor.AbstractTextEditor$16.selectionChanged(AbstractTextEditor.java:2971)
at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:162)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160)
at org.eclipse.jface.text.TextViewer.fireSelectionChanged(TextViewer.java:2728)
at org.eclipse.jface.text.TextViewer.selectionChanged(TextViewer.java:2707)
at org.eclipse.jface.text.TextViewer.setSelectedRange(TextViewer.java:2392)
at org.eclipse.jface.text.TextViewer$ViewerState.restore(TextViewer.java:1235)
at org.eclipse.jface.text.TextViewer.enabledRedrawing(TextViewer.java:5082)
at org.eclipse.jface.text.TextViewer.enabledRedrawing(TextViewer.java:5057)
at org.eclipse.jface.text.TextViewer.setRedraw(TextViewer.java:5142)
at org.eclipse.jface.text.TextViewer.setRedraw(TextViewer.java:5116)
at org.eclipse.jface.text.TextViewer$RewriteTarget.setRedraw(TextViewer.java:1065)
at org.eclipse.jface.text.TextViewer$DocumentRewriteSessionListener.documentRewriteSessionChanged(TextViewer.java:1476)
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:114)
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$1.run(TextFileChange.java:275)
at org.eclipse.ui.internal.editors.text.UISynchronizationContext.run(UISynchronizationContext.java:34)
at org.eclipse.core.internal.filebuffers.TextFileBufferManager.execute(TextFileBufferManager.java:629)
at org.eclipse.ltk.core.refactoring.TextFileChange.performEdits(TextFileChange.java:287)
at org.eclipse.ltk.core.refactoring.TextChange.perform(TextChange.java:238)
at org.eclipse.jdt.internal.corext.fix.CleanUpRefactoring$CleanUpChange.perform(CleanUpRefactoring.java:160)
at org.eclipse.ltk.core.refactoring.PerformChangeOperation$1.run(PerformChangeOperation.java:258)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1975)
at org.eclipse.ltk.core.refactoring.PerformChangeOperation.executeChange(PerformChangeOperation.java:306)
at org.eclipse.ltk.core.refactoring.PerformChangeOperation.run(PerformChangeOperation.java:223)
at org.eclipse.jdt.internal.corext.fix.CleanUpPostSaveListener.saved(CleanUpPostSaveListener.java:415)
at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider$5.run(CompilationUnitDocumentProvider.java:1571)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider.notifyPostSaveListeners(CompilationUnitDocumentProvider.java:1566)
at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider.commitWorkingCopy(CompilationUnitDocumentProvider.java:1363)
at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider$4.execute(CompilationUnitDocumentProvider.java:1432)
at org.eclipse.ui.editors.text.TextFileDocumentProvider$DocumentProviderOperation.run(TextFileDocumentProvider.java:132)
at org.eclipse.ui.actions.WorkspaceModifyDelegatingOperation.execute(WorkspaceModifyDelegatingOperation.java:69)
at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run(WorkspaceModifyOperation.java:106)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1975)
at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:118)
at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:75)
at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:65)
at org.eclipse.ui.editors.text.TextFileDocumentProvider.executeOperation(TextFileDocumentProvider.java:456)
at org.eclipse.ui.editors.text.TextFileDocumentProvider.saveDocument(TextFileDocumentProvider.java:772)
at org.eclipse.ui.texteditor.AbstractTextEditor.performSave(AbstractTextEditor.java:4868)
at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.performSave(CompilationUnitEditor.java:1230)
at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.doSave(CompilationUnitEditor.java:1283)
at org.eclipse.ui.texteditor.AbstractTextEditor$TextEditorSavable.doSave(AbstractTextEditor.java:6991)
at org.eclipse.ui.Saveable.doSave(Saveable.java:214)
at org.eclipse.ui.internal.SaveableHelper.doSaveModel(SaveableHelper.java:349)
at org.eclipse.ui.internal.SaveableHelper$3.run(SaveableHelper.java:195)
at org.eclipse.ui.internal.SaveableHelper$5.run(SaveableHelper.java:277)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
at org.eclipse.jface.window.ApplicationWindow$1.run(ApplicationWindow.java:759)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:756)
at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2600)
at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:285)
at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:264)
at org.eclipse.ui.internal.SaveableHelper.saveModels(SaveableHelper.java:207)
at org.eclipse.ui.internal.SaveableHelper.savePart(SaveableHelper.java:144)
at org.eclipse.ui.internal.EditorManager.savePart(EditorManager.java:1369)
at org.eclipse.ui.internal.WorkbenchPage.savePart(WorkbenchPage.java:3334)
at org.eclipse.ui.internal.WorkbenchPage.saveEditor(WorkbenchPage.java:3347)
at org.eclipse.ui.internal.SaveAction.run(SaveAction.java:76)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.ui.commands.ActionHandler.execute(ActionHandler.java:185)
at org.eclipse.ui.internal.handlers.LegacyHandlerWrapper.execute(LegacyHandlerWrapper.java:109)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:468)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:123)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1031)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3775)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1367)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1390)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1404)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1400)
at org.eclipse.swt.widgets.Canvas.sendKeyEvent(Canvas.java:416)
at org.eclipse.swt.widgets.Control.doCommandBySelector(Control.java:939)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:5068)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
at org.eclipse.swt.internal.cocoa.NSResponder.interpretKeyEvents(NSResponder.java:56)
at org.eclipse.swt.widgets.Composite.keyDown(Composite.java:587)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4978)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:220)
at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:1943)
at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2008)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:5040)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)
at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:4582)
at org.eclipse.swt.widgets.Display.applicationProc(Display.java:4659)
at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)
at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:115)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3274)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
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:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)

Session Data:

eclipse.buildId=I20100608-0911
java.version=1.6.0_20
java.vendor=Apple Inc.
BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_US
Framework arguments:  -keyring /Users/greg/.eclipse_keyring -showlocation
Command-line arguments:  -os macosx -ws cocoa -arch x86_64 -data /Users/greg/Documents/workspaces/ptp_head -keyring /Users/greg/.eclipse_keyring -showlocation
Comment 1 Dani Megert CLA 2010-08-16 04:14:02 EDT 
Any idea how this happened? Can you reproduce it?

*** This bug has been marked as a duplicate of bug 320523 ***
Comment 2 Greg Watson CLA 2010-08-17 10:06:12 EDT 
I think I was changing a variable name using the rename refactoring. I don't have a way to reproduce though.