return;
    }
    fail();
  }

  private static class BadEqualsFactory {
    /** oneConstantOnly matters now since it can be either null or the constant. */
    @SuppressWarnings("unused") // Called by reflection
    public static Object bad(String a, int b, @Nullable OneConstantEnum oneConstantOnly) {
      return new GoodEquals(a, b);
    }
  }

  public void testNullsOnReturnValues_good() throws Exception {

import com.google.common.collect.Sets;
import com.google.common.primitives.Ints;
import com.google.common.reflect.Invokable;
import com.google.common.reflect.Parameter;
import com.google.common.reflect.Reflection;
import com.google.common.reflect.TypeToken;
import com.google.common.testing.NullPointerTester.Visibility;
import com.google.common.testing.RelationshipTester.Item;

  @Retention(RetentionPolicy.RUNTIME)
  private @interface ExampleAnnotation {}

  private enum AnEnum {
    @ExampleAnnotation
    FOO,
    BAR
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testGetField() {
    Field foo = Enums.getField(AnEnum.FOO);
    assertEquals("FOO", foo.getName());
    assertTrue(foo.isAnnotationPresent(ExampleAnnotation.class));

  }

  /**
   * Provides a lexicographical comparator implementation; either a Java implementation or a faster
   * implementation based on {@link Unsafe}.
   *
   * <p>Uses reflection to gracefully fall back to the Java implementation if {@code Unsafe} isn't
   * available.
   */
  @VisibleForTesting
  static class LexicographicalComparatorHolder {
    static final String UNSAFE_COMPARATOR_NAME =

import com.google.common.collect.Sets;
import com.google.common.primitives.Ints;
import com.google.common.reflect.Invokable;
import com.google.common.reflect.Parameter;
import com.google.common.reflect.Reflection;
import com.google.common.reflect.TypeToken;
import com.google.common.testing.NullPointerTester.Visibility;
import com.google.common.testing.RelationshipTester.Item;

  }

  /**
   * Provides a lexicographical comparator implementation; either a Java implementation or a faster
   * implementation based on {@link Unsafe}.
   *
   * <p>Uses reflection to gracefully fall back to the Java implementation if {@code Unsafe} isn't
   * available.
   */
  @VisibleForTesting
  static class LexicographicalComparatorHolder {
    static final String UNSAFE_COMPARATOR_NAME =

        }
    }

    /**
     * Define a class into a class loader.
     *
     * On Java 8, the implementation is simply invoking {@link ClassLoader#defineClass} reflectively.
     *
     * Since Java 9, reflection is severely restrained, and a new API {@link MethodHandles.Lookup#defineClass} is introduced.

        testNg.run();
    }

    /**
     * The setter for {@code configFailurePolicy} has a different signature depending on TestNG version.
     * This method uses reflection to detect the API and calls the version with the correct signature.
     *
     * If the TestNG version is greater than or equal to 6.9.12, the provided {@code value} is coerced to

     */
    private static Unsafe getUnsafe() {
      try {
        return Unsafe.getUnsafe();
      } catch (SecurityException tryReflectionInstead) {
        // We'll try reflection instead.
      }
      try {
        return AccessController.doPrivileged(
            (PrivilegedExceptionAction<Unsafe>)
                () -> {
                  Class<Unsafe> k = Unsafe.class;

     */
    private static Unsafe getUnsafe() {
      try {
        return Unsafe.getUnsafe();
      } catch (SecurityException tryReflectionInstead) {
        // We'll try reflection instead.
      }
      try {
        return AccessController.doPrivileged(
            (PrivilegedExceptionAction<Unsafe>)
                () -> {
                  Class<Unsafe> k = Unsafe.class;