Bug 11109 F1 no longer works in Packages view
new context ID?
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
* Returns the selection provider.
	 */
	private ISelectionProvider getSelectionProvider() {
		return fViewer;
	}
	
	/**
	 * Returns the current selection.
	 */
	private ISelection getSelection() {
		return fViewer.getSelection();
	}
	  
	
	
	/**
	 * Called when the context menu is about to open. Override
	 * to add your own context dependent menu contributions.
	 */
	public void menuAboutToShow(IMenuManager menu) {
		JavaPlugin.createStandardGroups(menu);
		IStructuredSelection selection= (IStructuredSelection) fViewer.getSelection();
		Object element= selection.getFirstElement();
		
		fPropertyDialogAction.selectionChanged(selection);
		MenuManager newMenu= new MenuManager(PackagesMessages.getString("PackageExplorer.new")); 
		menu.appendToGroup(IContextMenuConstants.GROUP_NEW, newMenu);
		new NewWizardMenu(newMenu, getSite().getWorkbenchWindow(), false);
		
		if (selection.size() == 1 && fViewer.isExpandable(element))