Bug 64890 Package explorer out of sync when open/closing projects [package explorer]
RC1 - close a project - Open the closed project in a new window va Open in New Window context menu action - open the project observe: the Java project is rendered in the additional window as folders and CUs not on the class path.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerActionGroup.java
actionBars.setGlobalActionHandler(ActionFactory.BACK.getId(), fBackAction);
		actionBars.setGlobalActionHandler(ActionFactory.FORWARD.getId(), fForwardAction);
		actionBars.setGlobalActionHandler(IWorkbenchActionConstants.UP, fUpAction);
		actionBars.setGlobalActionHandler(IWorkbenchActionConstants.GO_TO_RESOURCE, fGotoResourceAction);
		actionBars.setGlobalActionHandler(JdtActionConstants.GOTO_TYPE, fGotoTypeAction);
		actionBars.setGlobalActionHandler(JdtActionConstants.GOTO_PACKAGE, fGotoPackageAction);
		
		fRefactorActionGroup.retargetFileMenuActions(actionBars);
	}
	 void fillToolBar(IToolBarManager toolBar) {
		toolBar.add(fBackAction);
		toolBar.add(fForwardAction);
		toolBar.add(fUpAction); 
		
		toolBar.add(new Separator());
		toolBar.add(fCollapseAllAction);
		toolBar.add(fToggleLinkingAction);
	}
	
	 void fillViewMenu(IMenuManager menu) {
		menu.add(fToggleLinkingAction);
		menu.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
		menu.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS+"-end"));		
	}
	 void handleSelectionChanged(SelectionChangedEvent event) {
	}
	
	public void fillContextMenu(IMenuManager menu) {		
		IStructuredSelection selection= (IStructuredSelection)getContext().getSelection();
		int size= selection.size();