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
getSite().setSelectionProvider(fViewer);
		getSite().getPage().addPartListener(fPartListener);
		IStatusLineManager slManager= getViewSite().getActionBars().getStatusLineManager();
		fViewer.addSelectionChangedListener(new StatusBarUpdater(slManager));
		fViewer.addTreeListener(fExpansionListener);
	
		if (fMemento != null)
			restoreState(fMemento);
		fMemento= null;
		 
		WorkbenchHelp.setHelp(fViewer.getControl(), IJavaHelpContextIds.MEMBERS_VIEW);
		
		fillActionBars();
	}
	private void fillActionBars() {
		IActionBars actionBars= getViewSite().getActionBars();
		IToolBarManager toolBar= actionBars.getToolBarManager();
		fillToolBar(toolBar);
		actionBars.updateActionBars();
	
		IMenuManager menu= actionBars.getMenuManager();
		menu.add(fFilterAction);
		
		menu.add(fShowLibrariesAction);  
		
		menu.add(fFilterWorkingSetAction); 
		menu.add(fRemoveWorkingSetAction); 
		menu.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
		menu.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS+"-end"));
	}