import java.util.List;
import java.util.Set;
import org.jspecify.annotations.NullMarked;

/**
 * An abstract TestSetGenerator for generating sets containing enum values.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked
public abstract class TestEnumSetGenerator implements TestSetGenerator<AnEnum> {
  @Override
  public SampleElements<AnEnum> samples() {
    return new Enums();
  }

/**
 * Suite of tests for OpenJdk 6 tests. The existence of this class is a hack because the
 * suitebuilder won't pick up the suites directly in the other classes because they don't extend
 * TestCase. Ergh.
 *
 * @author Kevin Bourrillion
 */
@AndroidIncompatible // test-suite builders
public class OpenJdk6Tests extends TestCase {
  public static Test suite() {
    TestSuite suite = new TestSuite();
    suite.addTest(OpenJdk6SetTests.suite());

import com.google.errorprone.annotations.DoNotMock;
import org.jspecify.annotations.NullMarked;

/**
 * Any object which can accept registrations of {@link TearDown} instances.
 *
 * @author Kevin Bourrillion
 * @since 10.0
 */
@DoNotMock("Implement with a lambda")
@GwtCompatible
@NullMarked
public interface TearDownAccepter {
  /**

/**
 * Suite of tests for OpenJdk 6 tests. The existence of this class is a hack because the
 * suitebuilder won't pick up the suites directly in the other classes because they don't extend
 * TestCase. Ergh.
 *
 * @author Kevin Bourrillion
 */
@AndroidIncompatible // test-suite builders
public class OpenJdk6Tests extends TestCase {
  public static Test suite() {
    TestSuite suite = new TestSuite();
    suite.addTest(OpenJdk6SetTests.suite());

/**
 * A generic JUnit test which tests {@code listIterator} operations on a list. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.ListTestSuiteBuilder}.
 *
 * @author Chris Povirk
 * @author Kevin Bourrillion
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.

import java.util.Spliterator;
import java.util.function.Consumer;
import org.jspecify.annotations.Nullable;

/**
 * {@code keySet()} implementation for {@link ImmutableMap}.
 *
 * @author Jesse Wilson
 * @author Kevin Bourrillion
 */
@GwtCompatible
final class ImmutableMapKeySet<K, V> extends IndexedImmutableSet<K> {
  private final ImmutableMap<K, V> map;

  ImmutableMapKeySet(ImmutableMap<K, V> map) {
    this.map = map;
  }

 * generally be avoided. Prefer {@link Interners#newWeakInterner} or another {@code Interner}
 * implementation even for {@code String} interning.
 *
 * @author Kevin Bourrillion
 * @since 3.0
 */
@DoNotMock("Use Interners.new*Interner")
@J2ktIncompatible
@GwtIncompatible
public interface Interner<E> {
  /**

import com.google.common.annotations.J2ktIncompatible;
import java.io.Serializable;
import org.jspecify.annotations.Nullable;

/**
 * Simple base class to verify that we handle generics correctly.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
public class BaseComparable implements Comparable<BaseComparable>, Serializable {
  private final String s;

  public BaseComparable(String s) {
    this.s = s;
  }

import java.util.List;
import java.util.Queue;
import junit.framework.Test;

/**
 * Tests the {@link Queue} implementations of {@link java.util}, suppressing tests that trip known
 * OpenJDK 6 bugs.
 *
 * @author Kevin Bourrillion
 */
@AndroidIncompatible // test-suite builders
public class OpenJdk6QueueTests extends TestsForQueuesInJavaUtil {
  public static Test suite() {
    return new OpenJdk6QueueTests().allTests();
  }

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jspecify.annotations.NullUnmarked;

/**
 * Test suite covering {@link Doubles#asList(double[])}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullUnmarked
@AndroidIncompatible // test-suite builders
public class DoubleArrayAsListTest extends TestCase {

  private static List<Double> asList(Double[] values) {