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Bug 208368 - Exceptions and error dialogs when restoring compiler prefs
Summary: Exceptions and error dialogs when restoring compiler prefs
Status: RESOLVED DUPLICATE of bug 137398
Alias: None
Product: JDT
Classification: Eclipse Project
Component: UI (show other bugs)
Version: 3.4   Edit
Hardware: PC Windows XP
: P3 major (vote)
Target Milestone: ---   Edit
Assignee: JDT-UI-Inbox CLA
QA Contact:
URL:
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Keywords:
Depends on:
Blocks:
 
Reported: 2007-11-01 04:58 EDT by Dani Megert CLA
Modified: 2007-11-01 05:54 EDT (History)
1 user (show)

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Description Dani Megert CLA 2007-11-01 04:58:14 EDT 
I20071101-0010.

1. start fresh workspace
2. create Java project
2. open its Compiler properties
3. switch to use project specific settings
4. click 'Apply'
5. disable project specific settings again
6. click 'Apply'
6. switch to another page
==>
Error Dialog: 'Could Not Accept Changes'
Click OK
==> another eror dialog reporting an NPE.

jdt.core settings file gets removed and a jdt.ui settings file is created with:
internal.default.compliance=default

.log entries:

!ENTRY org.eclipse.jface 4 2 2007-11-01 09:54:41.916
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jface".
!STACK 0
java.lang.IllegalStateException: Preference node "org.eclipse.jdt.core" has been removed.
	at org.eclipse.core.internal.preferences.EclipsePreferences.checkRemoved(EclipsePreferences.java:157)
	at org.eclipse.core.internal.preferences.EclipsePreferences.internalGet(EclipsePreferences.java:513)
	at org.eclipse.core.internal.preferences.EclipsePreferences.get(EclipsePreferences.java:364)
	at org.eclipse.ui.internal.preferences.WorkingCopyPreferences.internalGet(WorkingCopyPreferences.java:191)
	at org.eclipse.ui.internal.preferences.WorkingCopyPreferences.get(WorkingCopyPreferences.java:180)
	at org.eclipse.jdt.internal.ui.preferences.OptionsConfigurationBlock$Key.getStoredValue(OptionsConfigurationBlock.java:99)
	at org.eclipse.jdt.internal.ui.preferences.OptionsConfigurationBlock$Key.getStoredValue(OptionsConfigurationBlock.java:104)
	at org.eclipse.jdt.internal.ui.preferences.OptionsConfigurationBlock.testIfOptionsComplete(OptionsConfigurationBlock.java:261)
	at org.eclipse.jdt.internal.ui.preferences.OptionsConfigurationBlock.<init>(OptionsConfigurationBlock.java:220)
	at org.eclipse.jdt.internal.ui.preferences.NameConventionConfigurationBlock.<init>(NameConventionConfigurationBlock.java:302)
	at org.eclipse.jdt.internal.ui.preferences.CodeStylePreferencePage.createControl(CodeStylePreferencePage.java:48)
	at org.eclipse.jface.preference.PreferenceDialog.createPageControl(PreferenceDialog.java:1455)
	at org.eclipse.jface.preference.PreferenceDialog$13.run(PreferenceDialog.java:1212)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
	at org.eclipse.core.runtime.Platform.run(Platform.java:857)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:46)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:199)
	at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1206)
	at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:433)
	at org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:697)
	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:857)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:46)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:199)
	at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:840)
	at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1153)
	at org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1178)
	at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:250)
	at org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:244)
	at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:418)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:130)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3721)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3358)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
	at org.eclipse.jface.window.Window.open(Window.java:801)
	at org.eclipse.ui.dialogs.PropertyDialogAction.run(PropertyDialogAction.java:156)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:582)
	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:499)
	at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:410)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:947)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3744)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3355)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2395)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2359)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2225)
	at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:468)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:463)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:362)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:175)
	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:515)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:455)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1193)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1169)
	at org.eclipse.core.launcher.Main.main(Main.java:30)

!ENTRY org.eclipse.jface 4 2 2007-11-01 09:55:14.562
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jface".
!STACK 0
java.lang.NullPointerException
	at org.eclipse.jface.dialogs.DialogPage.setVisible(DialogPage.java:468)
	at org.eclipse.jface.preference.PreferenceDialog.selectCurrentPageAgain(PreferenceDialog.java:978)
	at org.eclipse.jface.preference.PreferenceDialog$9.handleError(PreferenceDialog.java:685)
	at org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:699)
	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:857)
	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:46)
	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:199)
	at org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:840)
	at org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1153)
	at org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1178)
	at org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:250)
	at org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:244)
	at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:418)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:130)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3721)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3358)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
	at org.eclipse.jface.window.Window.open(Window.java:801)
	at org.eclipse.ui.dialogs.PropertyDialogAction.run(PropertyDialogAction.java:156)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:582)
	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:499)
	at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:410)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:947)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3744)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3355)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2395)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2359)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2225)
	at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:468)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:463)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:362)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:175)
	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:515)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:455)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1193)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1169)
	at org.eclipse.core.launcher.Main.main(Main.java:30)
Comment 1 Martin Aeschlimann CLA 2007-11-01 05:54:40 EDT 

*** This bug has been marked as a duplicate of bug 137398 ***