code: @Nullable
    public static String getPathFromClass (@Nullable final String sClassName)
    {
      return sClassName == null ? null : StringHelper.replaceAll (sClassName, '.', '/');
    }
docs: Get the path representation of the passed class name. The path
  representation is achieved by replacing all dots (.) with forward slashes
  (/) in the class name.
  
  @param sClassName
  The class name of which the path is to be retrieved. May be
  <code>null</code>.
  @return The path representation