*
 * <p>Registering a DeadEvent subscriber is useful for debugging or logging, as it can detect
 * misconfigurations in a system's event distribution.
 *
 * @author Cliff Biffle
 * @since 10.0
 */
@ElementTypesAreNonnullByDefault
public class DeadEvent {

  private final Object source;
  private final Object event;

  /**
   * Creates a new DeadEvent.
   *

import com.google.common.collect.Lists;
import java.util.List;
import java.util.concurrent.Executor;
import junit.framework.TestCase;

/**
 * Test case for {@link AsyncEventBus}.
 *
 * @author Cliff Biffle
 */
public class AsyncEventBusTest extends TestCase {
  private static final String EVENT = "Hello";

  /** The executor we use to fake asynchronicity. */
  private FakeExecutor executor;

 *
 * <p>For testing fun, also includes a landmine method that EventBus tests are required not
 * to call ({@link #methodWithoutAnnotation(String)}).
 *
 * @author Cliff Biffle
 */
public class StringCatcher {
  private List<String> events = Lists.newArrayList();

  @Subscribe
  public void hereHaveAString(@Nullable String string) {
    events.add(string);
  }

import java.lang.reflect.Method;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link Subscriber}.
 *
 * @author Cliff Biffle
 * @author Colin Decker
 */
public class SubscriberTest extends TestCase {

  private static final Object FIXTURE_ARGUMENT = new Object();

  private EventBus bus;
  private boolean methodCalled;

import java.util.concurrent.atomic.AtomicInteger;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * Test case for {@link ConcurrentHashMultiset}.
 *
 * @author Cliff L. Biffle
 * @author mike nonemacher
 */
public class ConcurrentHashMultisetTest extends TestCase {

  public static Test suite() {
    TestSuite suite = new TestSuite();
    suite.addTest(

 *
 * <p>For testing fun, also includes a landmine method that EventBus tests are required not
 * to call ({@link #methodWithoutAnnotation(String)}).
 *
 * @author Cliff Biffle
 */
public class StringCatcher {
  private List<String> events = Lists.newArrayList();

  @Subscribe
  public void hereHaveAString(@Nullable String string) {
    events.add(string);
  }

import java.lang.reflect.Method;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link Subscriber}.
 *
 * @author Cliff Biffle
 * @author Colin Decker
 */
public class SubscriberTest extends TestCase {

  private static final Object FIXTURE_ARGUMENT = new Object();

  private EventBus bus;
  private boolean methodCalled;

import java.util.concurrent.atomic.AtomicInteger;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * Test case for {@link ConcurrentHashMultiset}.
 *
 * @author Cliff L. Biffle
 * @author mike nonemacher
 */
public class ConcurrentHashMultisetTest extends TestCase {

  public static Test suite() {
    TestSuite suite = new TestSuite();
    suite.addTest(

 * DeadEvent.
 *
 * <p>This class is safe for concurrent use.
 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/EventBusExplained">{@code EventBus}</a>.
 *
 * @author Cliff Biffle
 * @since 10.0
 */
@ElementTypesAreNonnullByDefault
public class EventBus {

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

  private final String identifier;

import java.util.concurrent.Executor;

/**
 * An {@link EventBus} that takes the Executor of your choice and uses it to dispatch events,
 * allowing dispatch to occur asynchronously.
 *
 * @author Cliff Biffle
 * @since 10.0
 */
@ElementTypesAreNonnullByDefault
public class AsyncEventBus extends EventBus {

  /**
   * Creates a new AsyncEventBus that will use {@code executor} to dispatch events. Assigns {@code