Bug 66794 Out of sync filter message [search]
I200406111238 - search for references to Refactoring - limit number of matches to 10 - switch group mode to CU observe: filters matched 21 - switch to flat mode observe: filters matched 84 <== seems already wrong - switch back observe: filters matched 0 <== is definitelly wrong
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/search/JavaSearchResultPage.java
if (fContentProvider != null)
			fContentProvider.elementsChanged(objects);
	}
	protected void clear() {
		if (fContentProvider != null)
			fContentProvider.clear();
	}
	protected void configureTableViewer(TableViewer viewer) {
		viewer.setUseHashlookup(true);
		viewer.setLabelProvider(new ColorDecoratingLabelProvider(new SortingLabelProvider(this), PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator()));
		fContentProvider=new JavaSearchTableContentProvider(this);
		viewer.setContentProvider(fContentProvider);
		setSortOrder(fCurrentSortOrder);
	}
	protected void configureTreeViewer(TreeViewer viewer) {
		viewer.setUseHashlookup(true);
		viewer.setSorter(new ViewerSorter());
		viewer.setLabelProvider(new ColorDecoratingLabelProvider(new PostfixLabelProvider(this), PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator()));
		fContentProvider= new LevelTreeContentProvider(this, fCurrentGrouping);
		viewer.setContentProvider(fContentProvider);
	}
	
	protected TreeViewer createTreeViewer(Composite parent) {
		return new ProblemTreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL) {
			public void add(Object parentElement, Object[] childElements) {
				if (limitElements() && parentElement.equals(getInput())) {
					int elementLimit= getElementLimit();
					Widget parentWidget= findItem(parentElement);
					if (parentWidget == null)
						return;