code: @Deprecated
      public static int normalize(char[] source,char[] target, Mode  mode, int options) {
          return normalize(source,0,source.length,target,0,target.length,mode, options);
      }
docs: Normalize a string.
  The string will be normalized according to the specified normalization
  mode and options.
  @param source The char array to normalize.
  @param target A char buffer to receive the normalized text.
  @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