code: @Deprecated
    public static void splitKeyVal(byte[] utf, int start, int length, 
                                   Text key, Text val, int splitPos,
                                   int separatorLength) throws IOException {
      StreamKeyValUtil.splitKeyVal(utf, start, 
          length, key, val, splitPos, separatorLength);
    }
docs: split a UTF-8 byte array into key and value
  assuming that the delimilator is at splitpos.
  @param utf utf-8 encoded string
  @param start starting offset
  @param length no. of bytes
  @param key contains key upon the method is returned
  @param val contains value upon the method is returned
  @param splitPos the split pos
  @param separatorLength the length of the separator between key and value
  @deprecated use
  {@link StreamKeyValUtil#splitKeyVal(byte[], int, int, Text, Text,
  int, int)}
  @throws IOException