code: public static String codePointsToString(IntStream codePoints) {
  		return codePoints.collect(StringBuilder::new, StringBuilder::appendCodePoint, StringBuilder::append).toString();
  	}
docs: Converts a stream of unicode code points into a String.
  <pre>
  {@code
  String spacesRemoved = MoreCollectors.codePointsToString("a b c".codePoints().filter(c -> c != ' '));
  Assert.assertEquals("abc", spacesRemoved);;
  }
  </pre>