Bug 256516 [TabbedProperties] TabbedPropertySheetPage to allow some options
bundles/org.eclipse.ui.views.properties.tabbed/src/org/eclipse/ui/views/properties/tabbed/TabbedPropertySheetPage.java
*/
		Iterator i = structuredSelection.iterator();
        i.next();
		while (i.hasNext()) {
            newContributor = getTabbedPropertySheetPageContributor(i.next());
			if (newContributor == null || !newContributor.getContributorId().equals(selectionContributorId)) {
				/**
				 * fall back to use the default contributor id from the
				 * workbench part.
				 */
				if (selectionContributor != null) {
					disposeContributor();
					currentContributorId = contributor.getContributorId();
					initContributor(currentContributorId);
				}
				return;
			}
		}
		/**
		 * All the elements in the selection implement a new contributor id, so
		 * use that id.
		 */
		disposeContributor();
		currentContributorId = selectionContributorId;
		initContributor(currentContributorId);
        overrideActionBars();
	}
    /**
     * Override the action bars for the selection based contributor.
     */