Bug 6279 - NPE after changing preference
Summary: NPE after changing preference
Status: RESOLVED FIXED
Alias: None
Product: JDT
Classification: Eclipse Project
Component: UI (show other bugs)
Version: 2.0   Edit
Hardware: PC Windows 2000
: P1 normal (vote)
Target Milestone: ---   Edit
Assignee: Kai-Uwe Maetzel CLA
QA Contact:
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Keywords:
Depends on:
Blocks:
 
Reported: 2001-11-23 18:45 EST by Erich Gamma CLA
Modified: 2001-12-03 06:51 EST (History)
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Description Erich Gamma CLA 2001-11-23 18:45:42 EST 
Changed the preference Java>Open type hierarchy in
got the following NPE

java.lang.NullPointerException
	at 
org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.handlePreferenceSto
reChanged(CompilationUnitEditor.java:979)
	at 
org.eclipse.ui.texteditor.AbstractTextEditor$PropertyChangeListener.propertyChan
ge(AbstractTextEditor.java:248)
	at org.eclipse.jface.preference.PreferenceStore.firePropertyChangeEvent
(PreferenceStore.java:107)
	at org.eclipse.jface.preference.PreferenceStore.setValue
(PreferenceStore.java:482)
	at org.eclipse.jface.preference.RadioGroupFieldEditor.doStore
(RadioGroupFieldEditor.java:146)
	at org.eclipse.jface.preference.FieldEditor.store(FieldEditor.java:575)
	at org.eclipse.jface.preference.FieldEditorPreferencePage.performOk
(FieldEditorPreferencePage.java:302)
	at org.eclipse.jface.preference.PreferenceDialog.okPressed
(PreferenceDialog.java:514)
	at org.eclipse.jface.preference.PreferenceDialog.buttonPressed
(PreferenceDialog.java:166)
	at org.eclipse.jface.dialogs.Dialog$1.widgetSelected(Dialog.java:211)
	at org.eclipse.swt.widgets.TypedListener.handleEvent
(TypedListener.java:85)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:54)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:635)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:1365)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1167)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:536)
	at org.eclipse.jface.window.Window.open(Window.java:523)
	at org.eclipse.ui.internal.OpenPreferencesAction.run
(OpenPreferencesAction.java:47)
	at org.eclipse.jface.action.Action.runWithEvent(Action.java:452)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection
(ActionContributionItem.java:407)
	at org.eclipse.jface.action.ActionContributionItem.handleWidgetEvent
(ActionContributionItem.java:361)
	at org.eclipse.jface.action.ActionContributionItem.access$0
(ActionContributionItem.java:352)
	at 
org.eclipse.jface.action.ActionContributionItem$ActionListener.handleEvent
(ActionContributionItem.java:47)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:54)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:635)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:1365)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:1167)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:775)
	at org.eclipse.ui.internal.Workbench.run(Workbench.java:758)
	at org.eclipse.core.internal.boot.InternalBootLoader.run
(InternalBootLoader.java:820)
	at org.eclipse.core.boot.BootLoader.run(BootLoader.java:285)
	at SlimLauncher.main(SlimLauncher.java:14)
Comment 1 Kai-Uwe Maetzel CLA 2001-12-03 06:51:53 EST 
Build > 20011203.