Bug 62968 Source folders disappear in Package Explorer if set to Hierarchical Layout
I200405190010 If I set the view to "Hierarchical Layout" in the Package Explorer my "src" folder shows as empty if there are no java files in the root package (i.e. only sub-packages at the first level). Setting to "Flat" and they appear again. Tried a new Java project to recreate, but the problem is not showing on new projects. PB
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/packageview/PackageExplorerPart.java
* to add your own context dependent menu contributions.
	 */
	public void menuAboutToShow(IMenuManager menu) {
		JavaPlugin.createStandardGroups(menu);
		
		fActionSet.setContext(new ActionContext(getSelection()));
		fActionSet.fillContextMenu(menu);
		fActionSet.setContext(null);
	}
	private void makeActions() {
		fActionSet= new PackageExplorerActionGroup(this);
	}
	
	
	
	private void initDragAndDrop() {
		initDrag();
		initDrop();
	}
	private void initDrag() {
		int ops= DND.DROP_COPY | DND.DROP_MOVE | DND.DROP_LINK;
		Transfer[] transfers= new Transfer[] {
			LocalSelectionTransfer.getInstance(), 
			ResourceTransfer.getInstance(),
			FileTransfer.getInstance()};
		TransferDragSourceListener[] dragListeners= new TransferDragSourceListener[] {
			new SelectionTransferDragAdapter(fViewer),
			new ResourceTransferDragAdapter(fViewer),
			new FileTransferDragAdapter(fViewer)
		};