fun challenges(): List<Challenge> {
    return headers.parseChallenges(
      when (code) {
        HTTP_UNAUTHORIZED -> "WWW-Authenticate"
        HTTP_PROXY_AUTH -> "Proxy-Authenticate"
        else -> return emptyList()
      },
    )
  }

  /**
   * Returns the cache control directives for this response. This is never null, even if this
   * response contains no `Cache-Control` header.
   */

import static com.google.common.truth.Truth.assertThat;
import static java.lang.Math.min;
import static java.util.Arrays.asList;
import static java.util.Arrays.sort;
import static java.util.Collections.emptyList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.Equivalence;

HSPLkotlin/collections/EmptyIterator;-><init>()V
HSPLkotlin/collections/EmptyIterator;->hasNext()Z
HSPLkotlin/collections/EmptyList;-><clinit>()V
HSPLkotlin/collections/EmptyList;-><init>()V
HSPLkotlin/collections/EmptyList;->isEmpty()Z
HSPLkotlin/collections/EmptyList;->iterator()Ljava/util/Iterator;
HSPLkotlin/collections/EmptyMap;-><clinit>()V
HSPLkotlin/collections/EmptyMap;-><init>()V

    }

    protected <T> Collection<T> getProjectScopedExtensionComponents(Collection<MavenProject> projects, Class<T> role) {
        if (projects == null) {
            return Collections.emptyList();
        }

        Collection<T> foundComponents = new LinkedHashSet<>();
        Collection<ClassLoader> scannedRealms = new HashSet<>();

        Thread currentThread = Thread.currentThread();

                // When this happens we have a Maven 1.x POM, or some invalid POM.
                // It should have never found its way into Maven 2.x repository, but it did.
                dependencies = Collections.emptyList();
            } else {
                dependencies = rel.project.getModel().getDependencies();

                DependencyManagement depMgmt = rel.project.getModel().getDependencyManagement();

        }
      }
    }

    @Throws(IOException::class)
    private fun readCertificateList(source: BufferedSource): List<Certificate> {
      val length = readInt(source)
      if (length == -1) return emptyList() // OkHttp v1.2 used -1 to indicate null.

      try {
        val certificateFactory = CertificateFactory.getInstance("X.509")
        val result = ArrayList<Certificate>(length)
        for (i in 0 until length) {

            CliRequest cliRequest, ClassRealm containerRealm, Set<String> providedArtifacts) throws Exception {
        if (cliRequest.multiModuleProjectDirectory == null) {
            return Collections.emptyList();
        }

        List<CoreExtension> extensions = new ArrayList<>();

        String installationExtensionsFile =

                container.addComponent(mock(Maven.class), "org.apache.maven.Maven");

                ((DefaultPlexusContainer) container)
                        .addPlexusInjector(Collections.emptyList(), binder -> binder.bind(EventSpyDispatcher.class)
                                .toInstance(eventSpyDispatcherMock));
            }
        };

        CliRequest cliRequest = new CliRequest(new String[] {}, null);

    return CollectCollectors.toImmutableList();
  }

  /**
   * Returns the empty immutable list. This list behaves and performs comparably to {@link
   * Collections#emptyList}, and is preferable mainly for consistency and maintainability of your
   * code.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */

        List<Profile> interpolatedActivations = getProfiles(rawModel);

        if (interpolatedActivations.isEmpty()) {
            return Collections.emptyList();
        }
        RegexBasedInterpolator interpolator = new RegexBasedInterpolator();

        interpolator.addValueSource(new MapBasedValueSource(context.getProjectProperties()));