exchange: Exchange,
    requestDone: Boolean = false,
    responseDone: Boolean = false,
    e: IOException?,
  ): IOException? {
    if (exchange != this.exchange) return e // This exchange was detached violently!

    var bothStreamsDone = false
    var callDone = false
    withLock {
      if (requestDone && requestBodyOpen || responseDone && responseBodyOpen) {
        if (requestDone) requestBodyOpen = false

    return new WildcardTypeImpl(new Type[] {lowerBound}, new Type[] {Object.class});
  }

  /**
   * Returns a human-readable string representation of {@code type}.
   *
   * <p>The format is subject to change.
   */
  static String toString(Type type) {
    return (type instanceof Class) ? ((Class<?>) type).getName() : type.toString();
  }

  static @Nullable Type getComponentType(Type type) {

    return new WildcardTypeImpl(new Type[] {lowerBound}, new Type[] {Object.class});
  }

  /**
   * Returns a human-readable string representation of {@code type}.
   *
   * <p>The format is subject to change.
   */
  static String toString(Type type) {
    return (type instanceof Class) ? ((Class<?>) type).getName() : type.toString();
  }

  static @Nullable Type getComponentType(Type type) {

  <description>Parent for guava artifacts</description>
  <url>https://github.com/google/guava</url>
  <properties>
    <!--
    When building Guava, you can pass (e.g.) `-Dsurefire.toolchain.version=21` to change which version to run tests under.
    You may find that you need to use Java 11+ to *build* Guava, but it continues to work under Java 8, and you can run tests to verify that, as we do.
    -->

  <description>Parent for guava artifacts</description>
  <url>https://github.com/google/guava</url>
  <properties>
    <!--
    When building Guava, you can pass (e.g.) `-Dsurefire.toolchain.version=21` to change which version to run tests under.
    You may find that you need to use Java 11+ to *build* Guava, but it continues to work under Java 8, and you can run tests to verify that, as we do.
    -->

              <!--
                To avoid "java.io.IOException: User limit of inotify watches reached" under JDK10.
                Presumably we don't need inotify, since we don't intend to change files during the
                build?
                -->
              <extraJvmArgs>-Dgwt.watchFileChanges=false</extraJvmArgs>
            </configuration>
          </execution>
          <!--

      strategyOrdinal = din.readByte();
      numHashFunctions = toUnsignedInt(din.readByte());
      dataLength = din.readInt();

      /*
       * We document in BloomFilterStrategies that we must not change the ordering, and we have a
       * test that verifies that we don't do so.
       */
      @SuppressWarnings("EnumOrdinal")
      Strategy strategy = BloomFilterStrategies.values()[strategyOrdinal];

    ```

### Per-call Configuration ([.kt][PerCallSettingsKotlin], [.java][PerCallSettingsJava])