viewer.setUseHashlookup(true);
	protected void configureTableViewer(TableViewer viewer) {		viewer.setLabelProvider(new DecoratingLabelProvider(new SortingLabelProvider(this), PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator()));		fContentProvider=new JavaSearchTableContentProvider(this);		viewer.setContentProvider(fContentProvider);		setSortOrder(fCurrentSortOrder);	}