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
protected void updateOccurrenceAnnotations(ITextSelection selection, CompilationUnit astRoot) {
		if (fOccurrencesFinderJob != null)
			fOccurrencesFinderJob.cancel();
		if (!fMarkOccurrenceAnnotations)
			return;
		
		if (astRoot == null || selection == null)
			return;
		
		IDocument document= getSourceViewer().getDocument();
		if (document == null)
			return;
				
		List matches= new ArrayList();
		String message;
		if (fMarkExceptionOccurrences || fMarkTypeOccurrences) {
			ExceptionOccurrencesFinder exceptionFinder= new ExceptionOccurrencesFinder();
			message= exceptionFinder.initialize(astRoot, selection.getOffset(), selection.getLength());
			if (message == null) {
				matches= exceptionFinder.perform();
			}
		}
		if (matches.size() == 0 && fMarkMethodExitPoints) {
			MethodExitsFinder finder= new MethodExitsFinder();
			message= finder.initialize(astRoot, selection.getOffset(), selection.getLength());
			if (message == null) {
				matches= finder.perform();
			}
		}
		if (matches.size() == 0) {