Method of

classpath/java/util/EnumSet.java:75–81

(T first, T ... rest)

  }
  
  public static <T extends Enum<T>>EnumSet<T> of(T first, T ... rest) {
    EnumSet<T> enumSet = createEmptyEnumSet(first.getDeclaringClass());
    enumSet.add(first);
    addAllElementsToSet(Arrays.asList(rest), enumSet);
    
    return enumSet;
  }
  
  public static <T extends Enum<T>>EnumSet<T> complementOf(EnumSet<T> s) {
    EnumSet<T> enumSet = copyOf(s);