@Override
    public boolean equals(Object o) {
        if (o == this) {
            return true;
        } else if (o instanceof OrderSpecifier) {
            OrderSpecifier<?> os = (OrderSpecifier) o;
            return os.order.equals(order) && os.target.equals(target)
                    && os.nullHandling.equals(nullHandling);
        } else {
            return false;
        }
    }
Create a new OrderSpecifier instance with nulls last enabled

@return new instance with nulls last enabled
querydsl-core/src/main/java/com/querydsl/core/types/OrderSpecifier.java