}
            }
            return null;
        };
    }

    @SafeVarargs
    static UnaryOperator<String> chain(UnaryOperator<String>... functions) {
        return chain(List.of(functions));
    }

    /**
     * Memoizes a given function that takes a String input and produces a String output.

import org.eclipse.aether.repository.WorkspaceReader;
import org.eclipse.aether.repository.WorkspaceRepository;

import static java.util.Objects.requireNonNull;

/**
 * A maven workspace reader that delegates to a chain of other readers, effectively aggregating their contents.
 * <p>
 * This class, while technically is not immutable, should be considered as such once set up. If not mutated, it is also

 * ```
 *
 * As expected, this fails with a certificate pinning exception:
 *
 * ```java
 * javax.net.ssl.SSLPeerUnverifiedException: Certificate pinning failure!
 * Peer certificate chain:
 *     sha256/afwiKY3RxoMmLkuRW1l7QsPZTJPwDS2pdDROQjXw8ig=: CN=publicobject.com, OU=PositiveSSL
 *     sha256/klO23nT2ehFDXCfx3eHTDRESMz3asj1muO+4aIdjiuY=: CN=COMODO RSA Secure Server CA

    assumeNetwork()

    val trustManager =
      object : X509TrustManager {
        override fun checkClientTrusted(
          chain: Array<out X509Certificate>?,
          authType: String?,
        ) {}

        override fun checkServerTrusted(
          chain: Array<out X509Certificate>?,
          authType: String?,
        ) {}

     * identifier are added, only the first repository being added will be used.
     *
     * @param repository The repository to add to the internal search chain, must not be {@code null}.
     * @throws InvalidRepositoryException If the repository could not be added (e.g. due to invalid URL or layout).
     */
    void addRepository(Repository repository) throws InvalidRepositoryException;

  }

  public void testFutureGetThrowsRuntimeException() throws Exception {
    BadFuture badInput = new BadFuture(immediateFuture(20));
    ListenableFuture<String> chain = buildChainingFuture(badInput);
    ExecutionException e = assertThrows(ExecutionException.class, () -> chain.get());
    assertThat(e.getCause()).isInstanceOf(BadFutureRuntimeException.class);
  }

  }

  public void testFutureGetThrowsRuntimeException() throws Exception {
    BadFuture badInput = new BadFuture(immediateFuture(20));
    ListenableFuture<String> chain = buildChainingFuture(badInput);
    ExecutionException e = assertThrows(ExecutionException.class, () -> chain.get());
    assertThat(e.getCause()).isInstanceOf(BadFutureRuntimeException.class);
  }

      client
        .newBuilder()
        .protocols(listOf(Protocol.H2_PRIOR_KNOWLEDGE))
        .socketFactory(socketFactory)
        .addNetworkInterceptor(
          Interceptor { chain ->
            try {
              chain.proceed(chain.request())
            } finally {
              firstConnectLatch.countDown()
            }
          },
        ).build()

    // Set up a same-connection retry.

 *    other properties.
 *
 * Certificates are signed by other certificates and a sequence of them is called a certificate
 * chain. The chain terminates in a self-signed "root" certificate. Signing certificates in the
 * middle of the chain are called "intermediates". Organizations that offer certificate signing are
 * called certificate authorities (CAs).
 *

   */
  abstract void collectOneValue(int index, @ParametricNullness InputT returnValue);

  abstract void handleAllCompleted();

  /** Adds the chain to the seen set, and returns whether all the chain was new to us. */
  private static boolean addCausalChain(Set<Throwable> seen, Throwable param) {
    // Declare a "true" local variable so that the Checker Framework will infer nullness.