// Verify we can retrieve it
        DfsReferralData received = loc.getDfsReferral();
        assertSame(dfs, received);

        // Verify that the URL returned by getURL works with SMB handler
        URL returned = loc.getURL();
        if (returned != null) {
            assertEquals(url, returned.toString());
        }

        // Test that getAddress returns null for our dummy implementation

                id = repository.getId();
            }

            log.debug("Using mirror: " + mirror.getUrl() + " (id: " + id + ")");

            repository = artifactRepositoryFactory.createArtifactRepository(
                    id, mirror.getUrl(), repository.getLayout(), repository.getSnapshots(), repository.getReleases());
        }
        return repository;
    }

                    repository.getUrl(),
                    repository.getLayout(),
                    repository.getSnapshots(),
                    repository.getReleases());

            repository.setMirroredRepositories(Collections.singletonList(original));

            repository.setId(mirror.getId());
            repository.setUrl(mirror.getUrl());

        if (r1 == r2) {
            return true;
        }

        return Objects.equals(r1.getId(), r2.getId())
                && Objects.equals(r1.getUrl(), r2.getUrl())
                && policyEquals(r1.getPolicy(false), r2.getPolicy(false))
                && policyEquals(r1.getPolicy(true), r2.getPolicy(true));
    }

    return delegate().getUnchecked(key);
  }

  @CanIgnoreReturnValue // TODO(b/27479612): consider removing this
  @Override
  public ImmutableMap<K, V> getAll(Iterable<? extends K> keys) throws ExecutionException {
    return delegate().getAll(keys);
  }

  @Override
  public V apply(K key) {
    return delegate().apply(key);
  }

  @Override
  public void refresh(K key) {
    delegate().refresh(key);

    @Override
    public int compareTo(MetadataGraphVertex vertex) {
        if (vertex == null || vertex.getMd() == null) {
            return 1;
        }

        ArtifactMetadata vmd = vertex.getMd();

        if (vmd == null) {
            if (md == null) {
                return 0;
            } else {
                return 1;
            }

    YELLOW,
    GREEN
  }

  private abstract static class CountingSupplier<E> implements Supplier<E>, Serializable {
    int count;

    abstract E getImpl();

    @Override
    public E get() {
      count++;
      return getImpl();
    }
  }

  private static class QueueSupplier extends CountingSupplier<Queue<Integer>> {
    @Override
    /*

     */
    String getName();

    /**
     * Gets the full URL of the artifact.
     *
     * @return The full URL of the artifact, never {@code null}.
     */
    String getUrl();

    /**
     * The size of the artifact in bytes.
     *
     * @return The of the artifact in bytes or a negative value if unknown.
     */
    long getContentLength();

    /**

        assertEquals(100, referral.getSize());
        assertEquals(1, referral.getServerType());
        assertEquals(0, referral.getRFlags());
        assertEquals(5, referral.getProximity());
        assertEquals(300, referral.getTtl());
        assertEquals(path, referral.getRpath());
        assertEquals(altPath, referral.getAltPath());
        assertEquals(node, referral.getNode());
        assertNull(referral.getSpecialName());

        asDocMeta().version(version);
    }

    public void addField(final String key, final Object value) {
        fields.put(key, value);
    }

    public String getLogMessage() {
        return getUrl();
    }

    public LocalDateTime getRequestedAt() {
        return getCreatedAt();
    }

    @Override
    public Map<String, Object> toSource() {