@J2ktIncompatible
  @GwtIncompatible // reflection
  public void testSuppliersNullChecks() throws Exception {
    new ClassSanityTester()
        .setDefault(Duration.class, Duration.ofSeconds(1))
        .forAllPublicStaticMethods(Suppliers.class)
        .testNulls();
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  @AndroidIncompatible // TODO(cpovirk): ClassNotFoundException: com.google.common.base.Function

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testSuppliersNullChecks() throws Exception {
    new ClassSanityTester()
        .setDefault(Duration.class, Duration.ofSeconds(1))
        .forAllPublicStaticMethods(Suppliers.class)
        .testNulls();
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  @AndroidIncompatible // TODO(cpovirk): ClassNotFoundException: com.google.common.base.Function

  public void testEquals() throws Exception {
    new ClassSanityTester()
        .setDistinctValues(Class.class, Color.class, Gender.class)
        .setDistinctValues(Enum.class, Color.BLUE, Color.RED)
        .forAllPublicStaticMethods(EnumMultisetFactory.class)
        .testEquals();
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testNulls() throws Exception {
    new NullPointerTester()

 *   public static Book paperback(String title) {...}
 * }
 * </pre>
 *
 * <p>And all the created {@code Book} instances can be tested with:
 *
 * <pre>
 * new ClassSanityTester()
 *     .forAllPublicStaticMethods(Books.class)
 *     .thatReturn(Book.class)
 *     .testEquals(); // or testNulls(), testSerializable() etc.
 * </pre>
 *
 * @author Ben Yu
 * @since 14.0
 */
@GwtIncompatible
@J2ktIncompatible

    new ClassSanityTester().forAllPublicStaticMethods(Predicates.class).testNulls();
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  @AndroidIncompatible // TODO(cpovirk): ClassNotFoundException: com.google.common.base.Function
  public void testEqualsAndSerializable() throws Exception {
    new ClassSanityTester().forAllPublicStaticMethods(Predicates.class).testEqualsAndSerializable();
  }

        .setDistinctValues(byte[].class, new byte[] {1, 2, 3, 4}, new byte[] {5, 6, 7, 8})
        .setDistinctValues(String.class, "7f8005ff0e", "7f8005ff0f")
        .forAllPublicStaticMethods(HashCode.class);
  }

  private static void assertExpectedHashCode(ExpectedHashCode expectedHashCode, HashCode hash) {
    assertTrue(Arrays.equals(expectedHashCode.bytes, hash.asBytes()));

        .setDistinctValues(byte[].class, new byte[] {1, 2, 3, 4}, new byte[] {5, 6, 7, 8})
        .setDistinctValues(String.class, "7f8005ff0e", "7f8005ff0f")
        .forAllPublicStaticMethods(HashCode.class);
  }

  private static void assertExpectedHashCode(ExpectedHashCode expectedHashCode, HashCode hash) {
    assertTrue(Arrays.equals(expectedHashCode.bytes, hash.asBytes()));

 * public class Books {
 *   public static Book hardcover(String title) {...}
 *   public static Book paperback(String title) {...}
 * }
 * </pre>
 *
 * <p>please use {@link ClassSanityTester#forAllPublicStaticMethods}.
 *
 * <p>If not all classes on the classpath should be covered, {@link #ignoreClasses} can be used to
 * exclude certain classes. As a special case, classes with an underscore in the name (like {@code

  }

  public void testExecutors_nullCheck() throws Exception {
    new ClassSanityTester()
        .setDefault(RateLimiter.class, RateLimiter.create(1.0))
        .forAllPublicStaticMethods(MoreExecutors.class)
        .thatReturn(Executor.class)
        .testNulls();
  }

  private static class TestApplication extends Application {
    private final List<Thread> hooks = Lists.newArrayList();

 * public class Books {
 *   public static Book hardcover(String title) {...}
 *   public static Book paperback(String title) {...}
 * }
 * </pre>
 *
 * <p>please use {@link ClassSanityTester#forAllPublicStaticMethods}.
 *
 * <p>If not all classes on the classpath should be covered, {@link #ignoreClasses} can be used to
 * exclude certain classes. As a special case, classes with an underscore in the name (like {@code