Bug 62612 NPE in EclipsePreferences.internalGet(...)
I200405171219 + ZRH smoke plugin-export 20040518_1115 After start and shutdown of the Buildmeister runtime I found the following exception. It looks like getTextPreferenceKey() in AbstractAnnotationHover#getHoverInfo() at line 83 returned null. java.lang.NullPointerException at org.eclipse.core.internal.preferences.EclipsePreferences.internalGet(EclipsePreferences.java:479) at org.eclipse.core.internal.preferences.EclipsePreferences.get(EclipsePreferences.java:349) at org.eclipse.core.internal.preferences.PreferenceForwarder.contains(PreferenceForwarder.java:181) at org.eclipse.ui.plugin.AbstractUIPlugin$CompatibilityPreferenceStore.contains(AbstractUIPlugin.java:277) at org.eclipse.ui.texteditor.ChainedPreferenceStore.getVisibleStore(ChainedPreferenceStore.java:525) at org.eclipse.ui.texteditor.ChainedPreferenceStore.getBoolean(ChainedPreferenceStore.java:166) at org.eclipse.jdt.internal.ui.text.java.hover.AbstractAnnotationHover.getHoverInfo(AbstractAnnotationHover.java:83) at org.eclipse.jdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo(BestMatchHover.java:102) at org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo(JavaEditorTextHoverProxy.java:69) at org.eclipse.jface.text.TextViewerHoverManager$4.run(TextViewerHoverManager.java:161)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
for (Iterator each= matches.iterator(); each.hasNext();) {
			ASTNode currentNode= (ASTNode)each.next();
			positions[i++]= new Position(currentNode.getStartPosition(), currentNode.getLength());
		}
		
		fOccurrencesFinderJob= new OccurrencesFinderJob(document, positions, selection);
		
		
		
		fOccurrencesFinderJob.run(new NullProgressMonitor());
	}
	
	protected void installOccurrencesFinder() {
		fMarkOccurrenceAnnotations= true;
		
		fPostSelectionListenerWithAST= new ISelectionListenerWithAST() {
			public void selectionChanged(IEditorPart part, ITextSelection selection, CompilationUnit astRoot) {
				updateOccurrenceAnnotations(selection, astRoot);
			}
		};
		SelectionListenerWithASTManager.getDefault().addListener(this, fPostSelectionListenerWithAST);
		if (getSelectionProvider() != null) {
			fForcedMarkOccurrencesSelection= getSelectionProvider().getSelection();
			SelectionListenerWithASTManager.getDefault().forceSelectionChange(this, (ITextSelection)fForcedMarkOccurrencesSelection);
		}
	}
	
	protected void uninstallOccurrencesFinder() {
		fMarkOccurrenceAnnotations= false;