@Nullable
  public static String getCleanURLPartWithoutUmlauts (@Nullable final String sURLPart)
  {
    if (s_aCleanURLOld == null)
      _initCleanURL ();
    final char [] ret = StringHelper.replaceMultiple (sURLPart, s_aCleanURLOld, s_aCleanURLNew);
    return new String (ret);
  }
@ Nullable public static String getCleanURLPartWithoutUmlauts ( @ Nullable final String sURLPart ) { if ( s_aCleanURLOld == null ) _initCleanURL ( ) ; final char [ ] ret = StringHelper . replaceMultiple ( sURLPart , s_aCleanURLOld , s_aCleanURLNew ) ; return new String ( ret ) ; }
Clean an URL part from nasty Umlauts. This mapping needs extension!

@param sURLPart
The original URL part. May be <code>null</code>.
@return The cleaned version or <code>null</code> if the input was
<code>null</code>.