More spliterator characteristics for EnumSet (and perhaps also optimized collection implementations for methods like forEach)

import java.util.*;

public class EnumSetSpliterator {
    enum RegularEnum {
        e00, e01, e02, e03, e04, e05, e06, e07,
    }

    enum JumboEnum {
        e00, e01, e02, e03, e04, e05, e06, e07,
        e08, e09, e0A, e0B, e0C, e0D, e0E, e0F,
        e10, e11, e12, e13, e14, e15, e16, e17,
        e18, e19, e1A, e1B, e1C, e1D, e1E, e1F,
        e20, e21, e22, e23, e24, e25, e26, e27,
        e28, e29, e2A, e2B, e2C, e2D, e2E, e2F,
        e30, e31, e32, e33, e34, e35, e36, e37,
        e38, e39, e3A, e3B, e3C, e3D, e3E, e3F,
        e40, e41, e42, e43, e44, e45, e46, e47,
        e48, e49, e4A, e4B, e4C, e4D, e4E, e4F,
    }

    static void printCharacteristics(Collection<?> coll) {
        System.out.println(coll.getClass().getSimpleName());
        int c = coll.spliterator().characteristics();
        if ((c & Spliterator.SIZED) != 0) System.out.println("SIZED");
        if ((c & Spliterator.SUBSIZED) != 0) System.out.println("SUBSIZED");
        if ((c & Spliterator.IMMUTABLE) != 0) System.out.println("IMMUTABLE");
        if ((c & Spliterator.CONCURRENT) != 0) System.out.println("CONCURRENT");
        if ((c & Spliterator.ORDERED) != 0) System.out.println("ORDERED");
        if ((c & Spliterator.DISTINCT) != 0) System.out.println("DISTINCT");
        if ((c & Spliterator.SORTED) != 0) System.out.println("SORTED");
        if ((c & Spliterator.NONNULL) != 0) System.out.println("NONNULL");
    }

    public static void main(String[] args) throws Throwable {
        printCharacteristics(EnumSet.of(RegularEnum.e03));
        printCharacteristics(EnumSet.of(JumboEnum.e03));
    }
}

=>

RegularEnumSet
SIZED
SUBSIZED
DISTINCT
JumboEnumSet
SIZED
SUBSIZED
DISTINCT