}
BugContentProvider provider = BugContentProvider.getProvider(navigator.getNavigatorContentService());
provider.setGrouping(grouping);
CommonViewer viewer = navigator.getCommonViewer();
Object[] expandedElements = viewer.getExpandedElements();
provider.reSetInput();
viewer.setExpandedElements(expandedElements);
}
private Grouping getGrouping(String id) {
if (id == null) {