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
* @param length the region length
	 * @param forward <code>true</code> for forwards, <code>false</code> for backward
	 * @param annotationPosition the position of the found annotation
	 * @return the found annotation
	 */
	private Annotation getNextAnnotation(final int offset, final int length, boolean forward, Position annotationPosition) {
		
		Annotation nextAnnotation= null;
		Position nextAnnotationPosition= null;
		Annotation containingAnnotation= null;
		Position containingAnnotationPosition= null;
		boolean currentAnnotation= false;
		
		IDocument document= getDocumentProvider().getDocument(getEditorInput());
		int endOfDocument= document.getLength(); 
		int distance= Integer.MAX_VALUE;
		
		IAnnotationModel model= getDocumentProvider().getAnnotationModel(getEditorInput());
		Iterator e= new JavaAnnotationIterator(model, true, true);
		while (e.hasNext()) {
			Annotation a= (Annotation) e.next();
			if ((a instanceof IJavaAnnotation) && ((IJavaAnnotation)a).hasOverlay() || !isNavigationTarget(a))
				continue;
				
			Position p= model.getPosition(a);
			if (p == null)
				continue;
			
			if (forward && p.offset == offset || !forward && p.offset + p.getLength() == offset + length) {
				if (containingAnnotation == null || (forward && p.length >= containingAnnotationPosition.length || !forward && p.length >= containingAnnotationPosition.length)) {