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
return result;
		String wsstr= PackagesMessages.getFormattedString("PackageExplorer.toolTip", new String[] { fWorkingSetName }); 
		if (result.length() == 0)
			return wsstr;
		return PackagesMessages.getFormattedString("PackageExplorer.toolTip2", new String[] { result, fWorkingSetName }); 
	}
	
	public String getTitleToolTip() {
		if (fViewer == null)
			return super.getTitleToolTip();
		return getToolTipText(fViewer.getInput());
	}
	
	/**
	 * @see IWorkbenchPart#setFocus()
	 */
	public void setFocus() {
		fViewer.getTree().setFocus();
	}
	/**
	 * Returns the current selection.
	 */
	private ISelection getSelection() {
		return fViewer.getSelection();
	}
	  
	
	
	/**
	 * Called when the context menu is about to open. Override