try {
        return condition.await(time, unit);
      } finally {
        lock.unlock();
      }
    }

    @Override
    public void awaitUninterruptibly() {
      lock.lock();
      try {
        condition.awaitUninterruptibly();
      } finally {
        lock.unlock();
      }
    }

    @Override
    public long awaitNanos(long nanosTimeout) throws InterruptedException {

      try {
        return condition.await(time, unit);
      } finally {
        lock.unlock();
      }
    }

    @Override
    public void awaitUninterruptibly() {
      lock.lock();
      try {
        condition.awaitUninterruptibly();
      } finally {
        lock.unlock();
      }
    }

    @Override
    public long awaitNanos(long nanosTimeout) throws InterruptedException {

          public void run() {
            task.run();
          }
        });
    awaitUninterruptibly(doingCallLatch);
    long hangDelayMillis =
        (expectedOutcome == Outcome.HANG)
            ? EXPECTED_HANG_DELAY_MILLIS
            : UNEXPECTED_HANG_DELAY_MILLIS;
    boolean hung =
        !awaitUninterruptibly(callCompletedLatch, hangDelayMillis, TimeUnit.MILLISECONDS);
    if (hung) {

          public void run() {
            task.run();
          }
        });
    awaitUninterruptibly(doingCallLatch);
    long hangDelayMillis =
        (expectedOutcome == Outcome.HANG)
            ? EXPECTED_HANG_DELAY_MILLIS
            : UNEXPECTED_HANG_DELAY_MILLIS;
    boolean hung =
        !awaitUninterruptibly(callCompletedLatch, hangDelayMillis, TimeUnit.MILLISECONDS);
    if (hung) {

  /** Invokes {@code latch.}{@link CountDownLatch#await() await()} uninterruptibly. */
  @J2ktIncompatible
  @GwtIncompatible // concurrency
  public static void awaitUninterruptibly(CountDownLatch latch) {
    boolean interrupted = false;
    try {
      while (true) {
        try {
          latch.await();
          return;
        } catch (InterruptedException e) {

import static com.google.common.truth.Truth.assertThat;
import static com.google.common.util.concurrent.MoreExecutors.newSequentialExecutor;
import static com.google.common.util.concurrent.Uninterruptibles.awaitUninterruptibly;
import static org.junit.Assert.assertThrows;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import com.google.common.collect.Queues;
import java.util.List;

import static com.google.common.truth.Truth.assertThat;
import static com.google.common.util.concurrent.MoreExecutors.newSequentialExecutor;
import static com.google.common.util.concurrent.Uninterruptibles.awaitUninterruptibly;
import static org.junit.Assert.assertThrows;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import com.google.common.collect.Queues;
import java.util.List;

      endWaitingFor(guard);
    }
  }

  @GuardedBy("lock")
  private void awaitUninterruptibly(Guard guard, boolean signalBeforeWaiting) {
    if (signalBeforeWaiting) {
      signalNextWaiter();
    }
    beginWaitingFor(guard);
    try {
      do {
        guard.condition.awaitUninterruptibly();
      } while (!guard.isSatisfied());
    } finally {
      endWaitingFor(guard);
    }

                // to
                // ensure that the thread running the failure callbacks is not the main thread.
                Uninterruptibles.awaitUninterruptibly(afterStarted);
                notifyFailed(new Exception("boom"));
              }
            }.start();
          }

          @Override
          protected void doStop() {

                // to
                // ensure that the thread running the failure callbacks is not the main thread.
                Uninterruptibles.awaitUninterruptibly(afterStarted);
                notifyFailed(new Exception("boom"));
              }
            }.start();
          }

          @Override
          protected void doStop() {