assertFalse(multimap.containsKey("foo"));
    assertFalse(multimap.containsValue(1));
    assertFalse(multimap.containsEntry("foo", 1));
    assertTrue(multimap.entries().isEmpty());
    assertTrue(multimap.equals(ArrayListMultimap.create()));
    assertEquals(emptyList(), multimap.get("foo"));
    assertEquals(0, multimap.hashCode());
    assertTrue(multimap.isEmpty());
    assertEquals(HashMultiset.create(), multimap.keys());

          .put(com.google.common.base.Optional.class, com.google.common.base.Optional.absent())
          .put(Predicate.class, Predicates.alwaysTrue())
          .put(Equivalence.class, Equivalence.equals())
          .put(Ticker.class, Ticker.systemTicker())
          .put(Stopwatch.class, Stopwatch.createUnstarted())
          // io types
          .put(InputStream.class, new ByteArrayInputStream(new byte[0]))

     */
    public static File getBuildDir(final String path) {
        assertArgumentNotEmpty("path", path);

        File dir = null;
        final URL url = getResource(path);
        if ("file".equals(url.getProtocol())) {
            final int num = path.split("/").length;
            dir = new File(getFileName(url));
            for (int i = 0; i < num; ++i) {
                dir = dir.getParentFile();
            }

        return result;
    }

    private void validatePrerequisitesForNonMavenPluginProjects(List<MavenProject> projects) {
        for (MavenProject mavenProject : projects) {
            if (!"maven-plugin".equals(mavenProject.getPackaging())) {
                Prerequisites prerequisites =
                        mavenProject.getModel().getDelegate().getPrerequisites();

    FreshValueGenerator generator = new FreshValueGenerator();
    String[] a1 = generator.generateFresh(String[].class);
    String[] a2 = generator.generateFresh(String[].class);
    assertFalse(a1[0].equals(a2[0]));
  }

  public void testPrimitiveArray() {
    FreshValueGenerator generator = new FreshValueGenerator();
    int[] a1 = generator.generateFresh(int[].class);

	// Compare two values in terms of in-ness.
	var cmp func(a, b Value) bool
	cmp = func(a, b Value) bool {
		// Convert if needed.
		inferTypesForCmp(&a, &b)

		if a.Equals(b) {
			return true
		}

		// If elements, compare each.
		aA, aOK := a.ToArray()
		bA, bOK := b.ToArray()
		if aOK && bOK {
			if len(aA) != len(bA) {
				return false
			}

        assertThat(graph.edgeValueOrDefault(node, otherNode, null) != null).isEqualTo(hasEdge);
        assertThat(!graph.edgeValueOrDefault(node, otherNode, DEFAULT).equals(DEFAULT))
            .isEqualTo(hasEdge);
      }
    }
  }

  @Test
  public void directedGraph() {
    graph = ValueGraphBuilder.directed().allowsSelfLoops(true).build();

   * to protect against <a href="http://en.wikipedia.org/wiki/Timing_attack">timing attacks</a>.
   */
  @Override
  public final boolean equals(@CheckForNull Object object) {
    if (object instanceof HashCode) {
      HashCode that = (HashCode) object;
      return bits() == that.bits() && equalsSameBits(that);
    }
    return false;
  }

  /**

import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Unit tests for {@link Invokable}.
 *
 * @author Ben Yu
 */
@AndroidIncompatible // lots of failures, possibly some related to bad equals() implementations?
public class InvokableTest extends TestCase {
  // Historically Invokable inherited from java.lang.reflect.AccessibleObject. That's no longer the

    for (Method method : RateLimiter.class.getMethods()) {
      if (!isStatic(method.getModifiers())
          && !NOT_WORKING_ON_MOCKS.contains(method.getName())
          && !method.getDeclaringClass().equals(Object.class)) {
        method.invoke(mock, arbitraryParameters(method));
      }
    }
  }

  private static Object[] arbitraryParameters(Method method) {