* @param <R> the type of the second (right) exclude spec
 */
@NonNullApi
public abstract class AbstractIntersection<L extends ExcludeSpec, R extends ExcludeSpec> implements Intersection<L, R> {
    private final Class<L> leftType;
    private final Class<R> rightType;

    protected AbstractIntersection(Class<L> leftType, Class<R> rightType) {
        this.leftType = leftType;
        this.rightType = rightType;
    }

                .findFirst()
                .map(i -> i.intersect(left, right, factory))
                .orElse(null);
        }
    }

    @NonNullApi
    private final class IntersectAnyWithAny extends AbstractIntersection<ExcludeAnyOf, ExcludeAnyOf> {
        public IntersectAnyWithAny() {
            super(ExcludeAnyOf.class, ExcludeAnyOf.class);
        }

        @Override