canonicalNames.put (i.next (), canonicalName);
canonicalNames.put (((String) i.next()).toLowerCase(), canonicalName);
  private void addCharset (Charset cs)  {    String canonicalName = cs.name ();    charsets.put (canonicalName, cs);    for (Iterator i = cs.aliases ().iterator (); i.hasNext (); )      canonicalNames.put (i.next (), canonicalName);  }