code: @Deprecated
      public static int normalize(char[] src,int srcStart, int srcLimit,
                                  char[] dest,int destStart, int destLimit,
                                  Mode  mode, int options) {
          CharBuffer srcBuffer = CharBuffer.wrap(src, srcStart, srcLimit - srcStart);
          CharsAppendable app = new CharsAppendable(dest, destStart, destLimit);
          mode.getNormalizer2(options).normalize(srcBuffer, app);
          return app.length();
      }
docs: Normalize a string.
  The string will be normalized according to the specified normalization
  mode and options.
  @param src       The char array to compose.
  @param srcStart  Start index of the source
  @param srcLimit  Limit index of the source
  @param dest      The char buffer to fill in
  @param destStart Start index of the destination buffer
  @param destLimit End index of the destination buffer
  @param mode      The normalization mode; one of Normalizer.NONE,
  Normalizer.NFD, Normalizer.NFC, Normalizer.NFKC,
  Normalizer.NFKD, Normalizer.DEFAULT
  @param options The normalization options, ORed together (0 for no options).
  @return int      The total buffer size needed;if greater than length of
  result, the output was truncated.
  @exception       IndexOutOfBoundsException if the target capacity is
  less than the required length
  @deprecated ICU 56 Use {@link Normalizer2} instead.
  @hide original deprecated declaration