// "Replace Stream API chain with loop" "true-preview" import java.util.stream.*; public class Test { private static final String ARRAY_ELEMENT_SEPARATOR = ", ", ARRAY_START = "[", ARRAY_END = "]"; public static String nullSafeToString(byte[] array) { return IntStream.range(0, array.length).mapToObj(i -> String.valueOf(array[i])) .collect(Collectors.joining(ARRAY_ELEMENT_SEPARATOR, ARRAY_START, ARRAY_END)); } }