code: static protected String normalizePath(String oldPath,
                                          String newPath,
                                          int offset,
                                          char separatorChar)
    {
      CharBuffer cb = new CharBuffer();
      normalizePath(cb, oldPath, newPath, offset, separatorChar);
      return cb.toString();
    }
docs: wrapper for the real normalize path routine to use CharBuffer.
  
  @param oldPath The parent Path's path
  @param newPath The user's new path
  @param offset Offset into the user path
  
  @return the normalized path