Some Eclipse Foundation services are deprecated, or will be soon. Please ensure you've read this important communication.

Bug 333151

Summary:	NPE in PluginManifestChange.createRenameChange(..) while renaming/moving/refactoring
Product:	[Eclipse Project] PDE	Reporter:	Andrey Zavtrakov <andrey>
Component:	UI	Assignee:	PDE-UI-Inbox <pde-ui-inbox>
Status:	NEW ---	QA Contact:
Severity:	normal
Priority:	P3	CC:	markus.kell.r, remy.suen, Vikas.Chandra
Version:	3.6.1	Keywords:	investigate
Target Milestone:	---
Hardware:	PC
OS:	Windows 7
Whiteboard:	stalebug

Description Andrey Zavtrakov

2010-12-23 07:44:59 EST

Build Identifier: 3.6.1

Almost every time i try to rename/move file inside workspace i got an internal error. Sometimes my eclipse hangs for a long time (>1m) before error appears. If i repeat rename/move after error it works ok.

i dont know if this is specific error to my plugin/workspace configuration, because i had the same error on 3.4, but i re-created my workspace from scratch and error looks like related to Eclipse core

Log contents:

!ENTRY org.eclipse.ltk.ui.refactoring 4 10000 2010-12-23 14:20:37.644
!MESSAGE Internal Error
!STACK 0
java.lang.reflect.InvocationTargetException
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:421)
	at org.eclipse.ltk.internal.ui.refactoring.RefactoringWizardDialog2.run(RefactoringWizardDialog2.java:330)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizard.internalPerformFinish(RefactoringWizard.java:573)
	at org.eclipse.ltk.ui.refactoring.UserInputWizardPage.performFinish(UserInputWizardPage.java:153)
	at org.eclipse.ltk.ui.refactoring.resource.RenameResourceWizard$RenameResourceRefactoringConfigurationPage.performFinish(RenameResourceWizard.java:117)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizard.performFinish(RefactoringWizard.java:646)
	at org.eclipse.ltk.internal.ui.refactoring.RefactoringWizardDialog2.okPressed(RefactoringWizardDialog2.java:454)
	at org.eclipse.jface.dialogs.Dialog.buttonPressed(Dialog.java:472)
	at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:234)
	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:4066)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
	at org.eclipse.jface.window.Window.open(Window.java:801)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation$1.run(RefactoringWizardOpenOperation.java:180)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:192)
	at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:115)
	at org.eclipse.jdt.internal.ui.refactoring.actions.RefactoringStarter.activate(RefactoringStarter.java:38)
	at org.eclipse.jdt.internal.corext.refactoring.RefactoringExecutionStarter.startRenameResourceRefactoring(RefactoringExecutionStarter.java:443)
	at org.eclipse.jdt.internal.ui.refactoring.actions.RenameResourceAction.run(RenameResourceAction.java:43)
	at org.eclipse.jdt.ui.actions.RenameAction.run(RenameAction.java:110)
	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274)
	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:250)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
	at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:119)
	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:1253)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1052)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1103)
	at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1099)
	at org.eclipse.swt.widgets.Widget.wmKeyDown(Widget.java:1808)
	at org.eclipse.swt.widgets.Control.WM_KEYDOWN(Control.java:4496)
	at org.eclipse.swt.widgets.Tree.WM_KEYDOWN(Tree.java:5976)
	at org.eclipse.swt.widgets.Control.windowProc(Control.java:4191)
	at org.eclipse.swt.widgets.Tree.windowProc(Tree.java:5844)
	at org.eclipse.swt.widgets.Display.windowProc(Display.java:4873)
	at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
	at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2459)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3655)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
	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(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:619)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
Caused by: java.lang.NullPointerException
	at org.eclipse.core.internal.registry.HashtableOfStringAndInt.get(HashtableOfStringAndInt.java:72)
	at org.eclipse.core.internal.registry.RegistryObjectManager.getExtensionPointHandle(RegistryObjectManager.java:396)
	at org.eclipse.core.internal.registry.ExtensionRegistry.getExtensionPoint(ExtensionRegistry.java:387)
	at org.eclipse.pde.internal.core.PDEExtensionRegistry.getExtensionPoint(PDEExtensionRegistry.java:134)
	at org.eclipse.pde.internal.core.PDEExtensionRegistry.findExtensionPoint(PDEExtensionRegistry.java:151)
	at org.eclipse.pde.internal.core.schema.SchemaRegistry.getSchema(SchemaRegistry.java:32)
	at org.eclipse.pde.internal.ui.refactoring.PluginManifestChange.createRenameChange(PluginManifestChange.java:64)
	at org.eclipse.pde.internal.ui.refactoring.PDERenameParticipant.addChange(PDERenameParticipant.java:54)
	at org.eclipse.pde.internal.ui.refactoring.PDERenameParticipant.createChange(PDERenameParticipant.java:47)
	at org.eclipse.ltk.core.refactoring.participants.ProcessorBasedRefactoring.createChange(ProcessorBasedRefactoring.java:308)
	at org.eclipse.ltk.core.refactoring.CreateChangeOperation.run(CreateChangeOperation.java:124)
	at org.eclipse.ltk.core.refactoring.PerformChangeOperation.run(PerformChangeOperation.java:209)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1975)
	at org.eclipse.ltk.internal.ui.refactoring.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:87)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Root exception:
java.lang.NullPointerException
	at org.eclipse.core.internal.registry.HashtableOfStringAndInt.get(HashtableOfStringAndInt.java:72)
	at org.eclipse.core.internal.registry.RegistryObjectManager.getExtensionPointHandle(RegistryObjectManager.java:396)
	at org.eclipse.core.internal.registry.ExtensionRegistry.getExtensionPoint(ExtensionRegistry.java:387)
	at org.eclipse.pde.internal.core.PDEExtensionRegistry.getExtensionPoint(PDEExtensionRegistry.java:134)
	at org.eclipse.pde.internal.core.PDEExtensionRegistry.findExtensionPoint(PDEExtensionRegistry.java:151)
	at org.eclipse.pde.internal.core.schema.SchemaRegistry.getSchema(SchemaRegistry.java:32)
	at org.eclipse.pde.internal.ui.refactoring.PluginManifestChange.createRenameChange(PluginManifestChange.java:64)
	at org.eclipse.pde.internal.ui.refactoring.PDERenameParticipant.addChange(PDERenameParticipant.java:54)
	at org.eclipse.pde.internal.ui.refactoring.PDERenameParticipant.createChange(PDERenameParticipant.java:47)
	at org.eclipse.ltk.core.refactoring.participants.ProcessorBasedRefactoring.createChange(ProcessorBasedRefactoring.java:308)
	at org.eclipse.ltk.core.refactoring.CreateChangeOperation.run(CreateChangeOperation.java:124)
	at org.eclipse.ltk.core.refactoring.PerformChangeOperation.run(PerformChangeOperation.java:209)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1975)
	at org.eclipse.ltk.internal.ui.refactoring.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:87)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)



Reproducible: Sometimes

Comment 1 Remy Suen

2010-12-23 08:18:45 EST

Possibly caused by a corrupt extension point trying to participate in the refactoring.

Comment 2 Andrey Zavtrakov

2010-12-23 10:40:00 EST

can i do something to find this corrupted extension?

Comment 3 Markus Keller

2010-12-25 16:54:14 EST

The problem is somewhere around
PluginManifestChange.createRenameChange(PluginManifestChange.java:64), see the root exception in comment 0.

The API IPluginExtension#getPoint() promises to return an ID, but both implementations can return null in some cases.

Comment 4 Eclipse Genie

2019-08-28 15:23:24 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.

--
The automated Eclipse Genie.

Comment 5 Eclipse Genie

2021-08-18 05:55:51 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.

--
The automated Eclipse Genie.

Comment 6 Eclipse Genie

2023-08-09 13:01:38 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.

--
The automated Eclipse Genie.