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 {

   */
  @J2ktIncompatible
  @GwtIncompatible // concurrency
  @IgnoreJRERequirement // Users will use this only if they're already using Duration.
  public static boolean awaitUninterruptibly(CountDownLatch latch, Duration timeout) {
    return awaitUninterruptibly(latch, toNanosSaturated(timeout), TimeUnit.NANOSECONDS);
  }

  /**
   * Invokes {@code latch.}{@link CountDownLatch#await(long, TimeUnit) await(timeout, unit)}

    @Override
    public void close() throws IOException {
      latch.countDown();
    }

    boolean awaitClosed() {
      return awaitUninterruptibly(latch, 10, SECONDS);
    }

    boolean stillOpen() {
      return !awaitUninterruptibly(latch, 1, SECONDS);
    }

    @Override
    public String toString() {
      return name;
    }
  }

 */

package com.google.common.collect;

import static com.google.common.collect.ReflectionFreeAssertThrows.assertThrows;
import static com.google.common.util.concurrent.Uninterruptibles.awaitUninterruptibly;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.base.Function;

          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) {

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 java.util.concurrent.Executors.newCachedThreadPool;
import static java.util.concurrent.Executors.newSingleThreadExecutor;
import static java.util.concurrent.TimeUnit.SECONDS;

                // 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() {

          // do nothing
        } finally {
          completedIteration.countDown();
        }
      }
    }

    void awaitInLoop() {
      Uninterruptibles.awaitUninterruptibly(completedIteration);
    }
  }

  private static final class InterruptibleFuture extends AbstractFuture<String> {
    boolean interruptTaskWasCalled;

    @Override

          // do nothing
        } finally {
          completedIteration.countDown();
        }
      }
    }

    void awaitInLoop() {
      Uninterruptibles.awaitUninterruptibly(completedIteration);
    }
  }

  private static final class InterruptibleFuture extends AbstractFuture<String> {
    boolean interruptTaskWasCalled;

    @Override