private static final long TIMEOUT_MILLIS = 5000;

  private final L lockLikeObject;

  private final SynchronousQueue<Request> requestQueue = new SynchronousQueue<>();
  private final SynchronousQueue<Response> responseQueue = new SynchronousQueue<>();

  private @Nullable Throwable uncaughtThrowable = null;

  public TestThread(L lockLikeObject, String threadName) {
    super(threadName);

  private static final long TIMEOUT_MILLIS = 5000;

  private final L lockLikeObject;

  private final SynchronousQueue<Request> requestQueue = new SynchronousQueue<>();
  private final SynchronousQueue<Response> responseQueue = new SynchronousQueue<>();

  private @Nullable Throwable uncaughtThrowable = null;

  public TestThread(L lockLikeObject, String threadName) {
    super(threadName);

      }
    }
  }

  public void testDrainOverflow() throws InterruptedException {
    Queues.drain(new SynchronousQueue<>(), new ArrayList<>(), /* numElements= */ 0, MAX_DURATION);
  }

  public void testDrainUninterruptiblyOverflow() {
    Queues.drainUninterruptibly(
        new SynchronousQueue<>(), new ArrayList<>(), /* numElements= */ 0, MAX_DURATION);
  }

  public void testZeroElements() throws Exception {

    Iterables.addAll(queue, elements);
    return queue;
  }

  // SynchronousQueue

  /** Creates an empty {@code SynchronousQueue} with nonfair access policy. */
  @J2ktIncompatible
  @GwtIncompatible // SynchronousQueue
  public static <E> SynchronousQueue<E> newSynchronousQueue() {
    return new SynchronousQueue<>();
  }

  /**

    Iterables.addAll(queue, elements);
    return queue;
  }

  // SynchronousQueue

  /** Creates an empty {@code SynchronousQueue} with nonfair access policy. */
  @J2ktIncompatible
  @GwtIncompatible // SynchronousQueue
  public static <E> SynchronousQueue<E> newSynchronousQueue() {
    return new SynchronousQueue<>();
  }

  /**

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.lang.reflect.Method;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/** Unit tests for {@link ForwardingExecutorService} */
@NullUnmarked

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.lang.reflect.Method;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/** Unit tests for {@link ForwardingExecutorService} */
@NullUnmarked

import com.google.common.util.concurrent.FuturesTest.ExecutorSpy;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

import com.google.common.util.concurrent.FuturesTest.ExecutorSpy;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

import java.io.IOException
import java.net.SocketTimeoutException
import java.time.Duration
import java.util.concurrent.BlockingQueue
import java.util.concurrent.LinkedBlockingQueue
import java.util.concurrent.SynchronousQueue
import java.util.concurrent.ThreadPoolExecutor
import java.util.concurrent.TimeUnit
import java.util.concurrent.atomic.AtomicReference
import kotlin.test.assertFailsWith
import mockwebserver3.MockResponse