code: public static int count(final byte[] data) {
  		int count = 0;
  		for (int i = data.length; --i >= 0;) {
  			count += count(data[i]);
  		}
  		return count;
  	}
docs: Returns the number of one-bits in the given {@code byte} array.
  
  @param data the {@code byte} array for which the one bits should be
  counted.
  @return the number of one bits in the given {@code byte} array.