};
      }

      @Override
      public Stream<E> stream() {
        return set1.stream().filter(set2::contains);
      }

      @Override
      public Stream<E> parallelStream() {
        return set1.parallelStream().filter(set2::contains);
      }

      @Override
      public int size() {
        int size = 0;
        for (E e : set1) {
          if (set2.contains(e)) {
            size++;

                }
            }));

            // Eagerly resolve all plugins in parallel
            toResolve.parallelStream().forEach(Runnable::run);

            // Keep track of phase aliases
            lifecycle.aliases().forEach(alias -> plan.aliases().put(alias.v3Phase(), alias.v4Phase()));

            return plan;
        }