// Mixed null/non-null -> not equal
        Kerb5Authenticator c = new Kerb5Authenticator(new Subject());
        assertNotEquals(a, c);

        // Same subject instance -> equal
        Subject shared = new Subject();
        Kerb5Authenticator d1 = new Kerb5Authenticator(shared);
        Kerb5Authenticator d2 = new Kerb5Authenticator(shared);
        assertEquals(d1, d2);

    assertThat(a.dispatcher).isNotNull()
    assertThat(a.connectionPool).isNotNull()
    assertThat(a.sslSocketFactory).isNotNull()
    assertThat(a.x509TrustManager).isNotNull()

    // Multiple clients share the instances.
    val b = client.newBuilder().build()
    assertThat(b.dispatcher).isSameAs(a.dispatcher)
    assertThat(b.connectionPool).isSameAs(a.connectionPool)
    assertThat(b.sslSocketFactory).isSameAs(a.sslSocketFactory)

    } catch (IllegalArgumentException | UnsupportedOperationException expected) {
    }
  }

  // TODO: test adding element of wrong type

  /**
   * Returns {@link Method} instances for the {@code setCount()} tests that assume multisets support
   * duplicates so that the test of {@code Multisets.forSet()} can suppress them.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection

        assertNotNull(results);
    }

    @Test
    public void testMultipleConverterInstances() throws IOException {
        // Test that multiple converter instances work independently
        AnalyzerConverter converter1 = new AnalyzerConverter(client, settings);
        AnalyzerConverter converter2 = new AnalyzerConverter(client, settings);

        String text = "test";

    /**
     * used to eliminate exact duplicates in the edge list
     */
    @Override
    @SuppressWarnings("checkstyle:equalshashcode")
    public boolean equals(Object o) {
        if (o instanceof MetadataGraphEdge e) {
            return objectsEqual(version, e.version)
                    && ArtifactScopeEnum.checkScope(scope)
                            .getScope()

                return Optional.ofNullable(userToolchainsSource);
            }

            @Override
            public boolean equals(Object o) {
                return o instanceof DefaultToolchainsBuilderRequest that
                        && Objects.equals(installationToolchainsSource, that.installationToolchainsSource)

   * Arrays::compareUnsigned}.
   */
  public static Comparator<int[]> lexicographicalComparator() {
    return LexicographicalComparator.INSTANCE;
  }

  enum LexicographicalComparator implements Comparator<int[]> {
    INSTANCE;

    @Override
    // A call to bare "min" or "max" would resolve to our varargs method, not to any static import.
    @SuppressWarnings("StaticImportPreferred")

     * @return true if enabled
     */
    public boolean isUseMultiChannel() {
        return multiChannelEnabled;
    }

    /**
     * Get the load balancer
     *
     * @return load balancer instance
     */
    public ChannelLoadBalancer getLoadBalancer() {
        return loadBalancer;
    }

    /**
     * Get all channels
     *
     * @return collection of all channels
     */

        TrustManagerFactory.getDefaultAlgorithm());
    trustManagerFactory.init((KeyStore) null);
    TrustManager[] trustManagers = trustManagerFactory.getTrustManagers();
    if (trustManagers.length != 1 || !(trustManagers[0] instanceof X509TrustManager)) {
      throw new IllegalStateException("Unexpected default trust managers:"
          + Arrays.toString(trustManagers));
    }
    return (X509TrustManager) trustManagers[0];
  }

    Iterator<E> iterator = collection.iterator();
    Object element = iterator.next();
    // If it's an Entry, it may become invalid once it's removed from the Map. Copy it.
    if (element instanceof Entry) {
      Entry<?, ?> entry = (Entry<?, ?>) element;
      element = mapEntry(entry.getKey(), entry.getValue());
    }
    assertTrue(collection.contains(element)); // sanity check
    iterator.remove();