.build()
    val acceptedIssuers = handshakeCertificates.trustManager.acceptedIssuers
    val names =
      acceptedIssuers
        .map { it.subjectDN.name }
        .toSet()

    // It's safe to assume all platforms will have a major Internet certificate issuer.
    assertThat(names).matchesPredicate { strings ->
      strings.any { it.matches(Regex("[A-Z]+=Entrust.*")) }
    }
  }

        Collection<DependencyScope> nonTransitiveDependencyScopes =
                allDependencyScopes.stream().filter(s -> !s.isTransitive()).collect(Collectors.toSet());
        DependencyScope system =
                internalScopeManager.getDependencyScope(DS_SYSTEM).orElse(null);

        ArrayList<ResolutionScope> result = new ArrayList<>();

    }

    /**
     * @return a set of all the projects managed by the build
     */
    public Set<MavenProject> getProjects() {
        return items.stream().map(ProjectSegment::getProject).collect(Collectors.toSet());
    }

  }

  public void testToSet() {
    assertThat(fluent(1, 2, 3, 4).toSet()).containsExactly(1, 2, 3, 4).inOrder();
  }

  public void testToSet_removeDuplicates() {
    assertThat(fluent(1, 2, 1, 2).toSet()).containsExactly(1, 2).inOrder();
  }

  public void testToSet_empty() {
    assertTrue(fluent().toSet().isEmpty());
  }

  public void testToSortedSet() {

                .entrySet()
                .stream()
                .filter(p -> p.getValue() > 1)
                .map(Map.Entry::getKey)
                .collect(Collectors.toSet());

        // schedule independent projects (ordered by critical path priority)
        for (MavenProject mavenProject : analyzer.getRootSchedulableBuilds()) {

        assertTrue(hasEdge(graph, "c", "d"));
        assertFalse(hasEdge(graph, "d", "c"));

        Set<String> labels = graph.getVertices().stream().map(Vertex::getLabel).collect(Collectors.toSet());
        assertEquals(4, labels.size());
        assertTrue(labels.contains("a"), "Expected " + labels + " to contain " + "a");
        assertTrue(labels.contains("b"), "Expected " + labels + " to contain " + "b");

        )
        val aapt2Versions = fetchAapt2Versions(
            latests.toSet().plus(nightlyVersion),
            "https://dl.google.com/dl/android/maven2/com/android/tools/build/aapt2/maven-metadata.xml"
        )
        val buildToolsVersion = fetchBuildToolsVersion(

                            .stream()
                            .filter(p -> p.getValue() > 1)
                            .map(Map.Entry::getKey)
                            .collect(Collectors.toSet());
                }
            }
        }
        return duplicateIds;
    }

    public List<BuildStep> sortedNodes() {
        if (sortedNodes == null) {
            synchronized (this) {

        Pin("example.com", CertificatePinnerTest.certA1Sha256Pin),
        Pin("www.example.com", CertificatePinnerTest.certA1Sha256Pin),
      )

    assertEquals(expectedPins, builder.pins)
    assertEquals(expectedPins.toSet(), certificatePinner.pins)
  }

  companion object {
    internal var certA1: HeldCertificate =
      HeldCertificate
        .Builder()
        .serialNumber(100L)
        .build()

        Collection<org.eclipse.aether.scope.DependencyScope> nonTransitiveDependencyScopes =
                allDependencyScopes.stream().filter(s -> !s.isTransitive()).collect(Collectors.toSet());
        org.eclipse.aether.scope.DependencyScope system = internalScopeManager
                .getDependencyScope(DependencyScope.SYSTEM.id())
                .orElse(null);