private void handleGoToPackage(ISelection selection) {
   IPackageFragment frag = getPackageFragment(selection);
   if (frag != null)
     try {
       IViewPart part = PDEPlugin.getActivePage().showView(JavaUI.ID_PACKAGES);
       ShowInPackageViewAction action = new ShowInPackageViewAction(part.getSite());
       action.run(frag);
     } catch (PartInitException e) {
     }
 }
 /**
  * Creates a new <code>GenerateActionGroup</code>. The group requires that the selection provided
  * by the part's selection provider is of type <code>
  * org.eclipse.jface.viewers.IStructuredSelection</code>.
  *
  * @param part the view part that owns this action group
  */
 public GenerateIncludePathActionGroup(IViewPart part) {
   this(part.getSite());
 }