}

  private val executed = AtomicBoolean()

  // These properties are only accessed by the thread executing the call.

  /** Initialized in [callStart]. */
  private var callStackTrace: Any? = null

  /** Finds an exchange to send the next request and receive the next response. */
  private var exchangeFinder: ExchangeFinder? = null

  var connection: RealConnection? = null
    private set
  private var timeoutEarlyExit = false

      var minDelayNanos = Long.MAX_VALUE
      var readyTask: Task? = null
      var multipleReadyTasks = false

      // Decide what to run. This loop's goal wants to:
      //  * Find out what this thread should do (either run a task or sleep)
      //  * Find out if there's enough work to start another thread.
      eachQueue@ for (queue in readyQueues) {
        val candidate = queue.futureTasks[0]

   * implementation unless some of its bounds have changed in resolution. This avoids creating
   * unequal TypeVariable implementation unnecessarily. When the bounds do change, however, it's
   * fine for the synthetic TypeVariable to be unequal to any native TypeVariable anyway.
   */
  @SuppressWarnings("UnusedTypeParameter") // It's used reflectively.
  static final class NativeTypeVariableEquals<X> {

   * implementation unless some of its bounds have changed in resolution. This avoids creating
   * unequal TypeVariable implementation unnecessarily. When the bounds do change, however, it's
   * fine for the synthetic TypeVariable to be unequal to any native TypeVariable anyway.
   */
  @SuppressWarnings("UnusedTypeParameter") // It's used reflectively.
  static final class NativeTypeVariableEquals<X> {

  <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.
    -->
    <surefire.toolchain.version>${java.specification.version}</surefire.toolchain.version>

  <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.
    -->
    <surefire.toolchain.version>${java.specification.version}</surefire.toolchain.version>

            return this;
        }

        /**
         * Sets the similar document hash for similarity search.
         *
         * @param similarDocHash the hash of the document to find similar documents to
         * @return this builder for method chaining
         */
        public SearchConditionBuilder similarDocHash(final String similarDocHash) {