code: @Override
    public PathImpl getPath(String name)
    {
      if (_prefix != null && _pathPrefix == null)
        _pathPrefix = _prefix.replace('.', '/');
  
      if (_pathPrefix != null && ! name.startsWith(_pathPrefix))
        return null;
  
      if (name.startsWith("/"))
        return _path.lookup("." + name);
      else
        return _path.lookup(name);
    }
docs: Given a class or resource name, returns a patch to that resource.
  
  @param name the class or resource name.
  
  @return the path representing the class or resource.