RuntimeException exception = new RuntimeException("you didn't say the magic word!");
    AbstractFuture<String> evilFuture =
        new AbstractFuture<String>() {
          @Override
          public void addListener(Runnable r, Executor e) {
            throw exception;
          }
        };
    AbstractFuture<String> normalFuture = new AbstractFuture<String>() {};
    normalFuture.setFuture(evilFuture);

    RuntimeException exception = new RuntimeException("you didn't say the magic word!");
    AbstractFuture<String> evilFuture =
        new AbstractFuture<String>() {
          @Override
          public void addListener(Runnable r, Executor e) {
            throw exception;
          }
        };
    AbstractFuture<String> normalFuture = new AbstractFuture<String>() {};
    normalFuture.setFuture(evilFuture);

import java.util.concurrent.Executor;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/** Tests for {@link AbstractFuture} with the cancellation cause system property set */
@AndroidIncompatible // custom classloading

@NullUnmarked
public class AbstractFutureCancellationCauseTest extends TestCase {

  private ClassLoader oldClassLoader;

        return object.toString();
      }
    };
  }

  public void testCancellationDuringReentrancy() throws Exception {
    TestLogHandler logHandler = new TestLogHandler();
    Logger.getLogger(AbstractFuture.class.getName()).addHandler(logHandler);

    List<Future<?>> results = new ArrayList<>();
    Runnable[] manualExecutorTask = new Runnable[1];
    Executor manualExecutor =
        new Executor() {

        return scheduledDelegate.compareTo(other);
      }
    }

    @GwtIncompatible // TODO
    private static final class NeverSuccessfulListenableFutureTask
        extends AbstractFuture.TrustedFuture<@Nullable Void> implements Runnable {
      private final Runnable delegate;

      NeverSuccessfulListenableFutureTask(Runnable delegate) {
        this.delegate = checkNotNull(delegate);
      }

      }
    }
  }

  static class LoadingValueReference<K, V> implements ValueReference<K, V> {
    volatile ValueReference<K, V> oldValue;

    // TODO(fry): rename get, then extend AbstractFuture instead of containing SettableFuture
    final SettableFuture<V> futureValue = SettableFuture.create();
    final Stopwatch stopwatch = Stopwatch.createUnstarted();

    public LoadingValueReference() {