listenerLatch.await();
    }
    return returnValue;
  }

  // This is the old implementation of ExecutionList using a LinkedList.
  private static final class OldExecutionList {
    static final Logger log = Logger.getLogger(OldExecutionList.class.getName());
    final Queue<OldExecutionList.RunnableExecutorPair> runnables = Lists.newLinkedList();
    boolean executed = false;

   * strangely when run in JDK 9. We are considering this a known issue. Please see
   * https://github.com/google/guava/issues/3086 for more information.
   */

  private static final Logger logger = Logger.getLogger(FinalizableReferenceQueue.class.getName());

  private static final String FINALIZER_CLASS_NAME = "com.google.common.base.internal.Finalizer";

  /** Reference to Finalizer.startFinalizer(). */

   * strangely when run in JDK 9. We are considering this a known issue. Please see
   * https://github.com/google/guava/issues/3086 for more information.
   */

  private static final Logger logger = Logger.getLogger(FinalizableReferenceQueue.class.getName());

  private static final String FINALIZER_CLASS_NAME = "com.google.common.base.internal.Finalizer";

  /** Reference to Finalizer.startFinalizer(). */

      return new byte[0];
    }

    @Override
    public void tearDown() throws IOException {}
  }

  private abstract static class FileFactory {

    private static final Logger logger = Logger.getLogger(FileFactory.class.getName());

    private final ThreadLocal<File> fileThreadLocal = new ThreadLocal<>();

    protected File createFile() throws IOException {

          "testEquality");

  private static final Chopper TEST_SUFFIX =
      suffix("Test").or(suffix("Tests")).or(suffix("TestCase")).or(suffix("TestSuite"));

  private final Logger logger = Logger.getLogger(getClass().getName());
  private final ClassSanityTester tester = new ClassSanityTester();
  private Visibility visibility = Visibility.PACKAGE;
  private Predicate<Class<?>> classFilter =

          assertEquals(unfiltered.floor(i), filtered.floor(i));
          assertEquals(unfiltered.ceiling(i), filtered.ceiling(i));
          assertEquals(unfiltered.higher(i), filtered.higher(i));
        }
      }
    }
  }

  private FilteredCollectionsTestUtil() {}

  public void testCopyExceptions() {
    if (Closer.create().suppressor instanceof LoggingSuppressor) {
      // test that exceptions are logged

      TestLogHandler logHandler = new TestLogHandler();
      Closeables.logger.addHandler(logHandler);
      try {
        for (CharSource in : BROKEN_SOURCES) {
          runFailureTest(in, newNormalCharSink());
          assertTrue(logHandler.getStoredLogRecords().isEmpty());

        new Suppression(c1, c3Exception, c1Exception));
  }

  public static void testLoggingSuppressor() throws IOException {
    TestLogHandler logHandler = new TestLogHandler();

    Closeables.logger.addHandler(logHandler);
    try {
      Closer closer = new Closer(new Closer.LoggingSuppressor());

      TestCloseable c1 = closer.register(TestCloseable.throwsOnClose(new IOException()));

  @CheckForNull
  public K firstKey() {
    return sortedDelegate.firstKey();
  }

  @CheckForNull
  public K lastKey() {
    return sortedDelegate.lastKey();
  }

  @CheckForNull
  K higher(K k) {
    Iterator<K> iterator = keySet().tailSet(k).iterator();
    while (iterator.hasNext()) {
      K tmp = iterator.next();
      if (comparator().compare(k, tmp) < 0) {
        return tmp;
      }
    }

import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/** Tests for {@link ExecutionSequencer} */
public class ExecutionSequencerTest extends TestCase {