Bug 81083 [preferences] Mark Occurences enablement not adhered to
I200412142000 - open preference page with Mark Occurences preferences - enable Mark Occurences - Apply - Restore Defaults - OK -> toolbar shows Mark Occurences as 'enabled', editor marks occurences -> on preference page the preference is disabled
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
*/
	protected void handlePreferenceStoreChanged(PropertyChangeEvent event) {
		
		if (AbstractDecoratedTextEditorPreferenceConstants.EDITOR_TAB_WIDTH.equals(event.getProperty())) {
			
			
			return;
		}
		
		try {			
			ISourceViewer sourceViewer= getSourceViewer();
			if (sourceViewer == null)
				return;
				
			String property= event.getProperty();	
			
			if (isJavaEditorHoverProperty(property))
				updateHoverBehavior();
			
			if (PreferenceConstants.EDITOR_SYNC_OUTLINE_ON_CURSOR_MOVE.equals(property)) {
				if ((event.getNewValue() instanceof Boolean) && ((Boolean)event.getNewValue()).booleanValue())
					selectionChanged();
				return;
			}
			
			if (PreferenceConstants.EDITOR_MARK_OCCURRENCES.equals(property)) {
				if (event.getNewValue() instanceof Boolean) {
					boolean markOccurrenceAnnotations= ((Boolean)event.getNewValue()).booleanValue();
					if (markOccurrenceAnnotations != fMarkOccurrenceAnnotations) {
						fMarkOccurrenceAnnotations= markOccurrenceAnnotations;