unable to instantiate TemplateCompletionProposalComputer

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This topic has 8 replies, 2 voices, and was last updated 15 years ago by Loyal Water.

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April 10, 2009 at 12:37 pm #297434 Reply

Benjamin Gandon

Member

In my fresh MyEclipse 7.1.1 installation,
when I use the CTRL+SPACE shortcut, I get this error :


!ENTRY org.eclipse.jdt.ui 4 0 2009-04-10 16:07:34.500
!MESSAGE The 'org.eclipse.jdt.ui.TemplateProposalComputer' proposal computer from the 'org.eclipse.jdt.ui' plug-in did not complete normally. Unable to instantiate the extension.
!STACK 1
org.eclipse.core.runtime.CoreException: Plug-in "org.eclipse.jdt.ui" was unable to instantiate class "org.eclipse.jdt.internal.ui.text.java.TemplateCompletionProposalComputer".
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:180)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:172)
    at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:867)
    at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
    at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
    at org.eclipse.jdt.internal.ui.text.java.CompletionProposalComputerDescriptor.createComputer(CompletionProposalComputerDescriptor.java:291)
    at org.eclipse.jdt.internal.ui.text.java.CompletionProposalComputerDescriptor.getComputer(CompletionProposalComputerDescriptor.java:258)
    at org.eclipse.jdt.internal.ui.text.java.CompletionProposalComputerDescriptor.sessionStarted(CompletionProposalComputerDescriptor.java:401)
    at org.eclipse.jdt.internal.ui.text.java.CompletionProposalCategory.sessionStarted(CompletionProposalCategory.java:313)
    at org.eclipse.jdt.internal.ui.text.java.ContentAssistProcessor$CompletionListener.assistSessionStarted(ContentAssistProcessor.java:112)
    at org.eclipse.jface.text.contentassist.ContentAssistant.fireSessionBeginEvent(ContentAssistant.java:2218)
    at org.eclipse.jface.text.contentassist.ContentAssistant.prepareToShowCompletions(ContentAssistant.java:1693)
    at org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1660)
    at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor$AdaptedSourceViewer.doOperation(CompilationUnitEditor.java:177)
    at org.eclipse.ui.texteditor.ContentAssistAction$1.run(ContentAssistAction.java:82)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.texteditor.ContentAssistAction.run(ContentAssistAction.java:80)
    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:472)
Caused by: java.lang.NullPointerException
    at org.eclipse.jdt.internal.ui.JavaPlugin.getTemplateContextRegistry(JavaPlugin.java:796)
    at org.eclipse.jdt.internal.ui.text.java.TemplateCompletionProposalComputer.<init>(TemplateCompletionProposalComputer.java:46)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance0(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:170)
    at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:867)
    at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
    at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
    at org.eclipse.jdt.internal.ui.text.java.CompletionProposalComputerDescriptor.createComputer(CompletionProposalComputerDescriptor.java:291)
    at org.eclipse.jdt.internal.ui.text.java.CompletionProposalComputerDescriptor.getComputer(CompletionProposalComputerDescriptor.java:258)
...

I have the following plugins installed :

Could you help me to understand what’s wrong ? Thank you for your help.

April 13, 2009 at 12:15 pm #297475 Reply

Loyal Water

Member

It is one of the plugins you have setup that might be incompatible with MyEclipse and causing this problem. You can go to Window > Prefs > Java > Editor > Templates preference page, and hit “Restore Defaults”. This might help.

April 15, 2009 at 9:17 am #297568 Reply

Benjamin Gandon

Member

When I go to this preferences panel, I get the following error :

Unable to create the selected preference page.
java.lang.NullPointerException

Nothing is displayed, and restoring Defaults doesn’t help.

Logs show this stack trace :

!ENTRY org.eclipse.equinox.registry 4 1 2009-04-15 16:14:56.843
!MESSAGE Unable to create the selected preference page.
!STACK 0
java.lang.NullPointerException
    at org.eclipse.jdt.internal.ui.JavaPlugin.getTemplateContextRegistry(JavaPlugin.java:796)
    at org.eclipse.jdt.internal.ui.JavaPlugin.getTemplateStore(JavaPlugin.java:842)
    at org.eclipse.jdt.internal.ui.preferences.JavaTemplatePreferencePage.<init>(JavaTemplatePreferencePage.java:52)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance0(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:170)
    at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:867)
    at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
    at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)
    at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:259)
    at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceNode.createPage(WorkbenchPreferenceNode.java:47)
    at org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1306)
    at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:369)
    at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1197)
    at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:570)
    at org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:702)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:698)
    at org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:842)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.runtime.Platform.run(Platform.java:880)
    at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
    at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
    at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:840)
    at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1639)
    at org.eclipse.jface.viewers.TreeViewer.setSelection(TreeViewer.java:1104)
    at org.eclipse.jface.preference.PreferenceDialog.selectSavedItem(PreferenceDialog.java:1021)
    at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.selectSavedItem(FilteredPreferenceDialog.java:624)
    at org.eclipse.jface.preference.PreferenceDialog$4.run(PreferenceDialog.java:369)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.jface.preference.PreferenceDialog.createContents(PreferenceDialog.java:365)
    at org.eclipse.jface.window.Window.create(Window.java:431)
    at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1089)
    at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.createDialogOn(WorkbenchPreferenceDialog.java:96)
    at org.eclipse.ui.dialogs.PreferencesUtil.createPreferenceDialogOn(PreferencesUtil.java:97)
    at org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:64)
    at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
    at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:583)
    at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:500)
    at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
    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.Display.runDeferredEvents(Display.java:3823)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
    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)

Can you guess what’s wrong ? What else can I do ?

April 15, 2009 at 4:16 pm #297600 Reply

Loyal Water

Member

bgandon,
We fixed this issue in the 7.1.1 release. Im not sure why you are still running into it. Can you go to MyEclipse > Installation Summary > Installation Details and paste the information here for me.

April 16, 2009 at 3:15 am #297616 Reply

Benjamin Gandon

Member

Here it is

*** Date: 
jeudi 16 avril 2009 10 h 05 CEST

** System properties:
OS=WindowsXP
OS version=5.1.0
Java version=1.5.0_11


*** MyEclipse details:
MyEclipse Enterprise Workbench
Version: 7.1.1
Build id: 7.1.1-20090310


*** Eclipse details:
MyEclipse Enterprise Workbench

Version: 7.1.1
Build id: 7.1.1-20090310




Eclipse Platform

Version: 3.4.1.r341_v20080731-9I96EiDElYevwz-p1bP5z-NlAaP7vtX6Utotqsu
Build id: M20080911-1700


Eclipse Java Development Tools

Version: 3.4.1.r341_v20080709-0800-7o7tEAfEF_U5qyUgrb2HAp539P97
Build id: M20080709-0800


Eclipse Plug-in Development Environment

Version: 3.4.1.r341_v20080731-7T7U0E9mlRIuGUYviF_VP
Build id: M20080703-0800


Eclipse Graphical Editing Framework GEF

Version: 3.4.1.v20080806-67718083A56B4H2A3213573
Build id: 200809101400


Eclipse RCP

Version: 3.4.100.r341_v20080814-989JESIEdAciFYfkZZsBfSwQ2341
Build id: M20080703-0800




Eclipse startup command=-os
win32
-ws
win32
-arch
x86
-showsplash
-launcher
C:\Program Files\Genuitec\MyEclipse 7.1\myeclipse.exe
-name
Myeclipse
--launcher.library
C:\Program Files\Genuitec\MyEclipse 7.1\../Common\plugins\org.eclipse.equinox.launcher.win32.win32.x86_1.0.101.R34x_v20080731\eclipse_1115.dll
-startup
C:\Program Files\Genuitec\MyEclipse 7.1\../Common\plugins\org.eclipse.equinox.launcher_1.0.101.R34x_v20080819.jar
-clean
-configuration
configuration
-vm
C:\Program Files\Genuitec\Common\binary\com.sun.java.jre.win32.x86_1.5.0.011\bin\client\jvm.dll

I have reinstalled a fresh MyEclipse 7.1.1 last week after having experienced event loops troubles with my updated MyEclipse 7.0 installation.

So my workspace may have been created with a former MyEclipse update. Could this be a cause for this trouble ?

April 16, 2009 at 12:34 pm #297638 Reply

Loyal Water

Member

So my workspace may have been created with a former MyEclipse update. Could this be a cause for this trouble ?

That should not cause any issues but can you still try switching to a new workspace and testing this again.

Also, did you setup MyEclipse using the All in one installer?

April 20, 2009 at 11:33 am #297719 Reply

Benjamin Gandon

Member

Switching to a new workspace does not help, unfortunately.
I did install MyEclipse with the 7.1.1 All in one installer, indeed.

I uninstalled MyEclipse and I’m now in the process of reinstlling it with the 7.1.1 All in one installer.
For the moment it is stuck on the update check. I’ll keep you informed.

April 20, 2009 at 11:59 am #297720 Reply

Benjamin Gandon

Member

Ok, you were perfectly right : that was a conflicting plugin.
In this case, it was PHPEclipse (or some of its debug features).

It’s working fine now. Thank you very much for your help !

April 21, 2009 at 4:21 am #297741 Reply

Loyal Water

Member

Your welcome.

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