import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Implementation of {@link ImmutableSet} with exactly one element.
 *
 * @author Kevin Bourrillion
 * @author Nick Kralevich
 */
@GwtCompatible(serializable = true, emulated = true)
@SuppressWarnings("serial") // uses writeReplace(), not default serialization
@ElementTypesAreNonnullByDefault

import java.util.Set;
import junit.framework.Test;
import junit.framework.TestSuite;

/**
 * Unit test for {@link ImmutableSet}.
 *
 * @author Kevin Bourrillion
 * @author Jared Levy
 * @author Nick Kralevich
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class ImmutableSetTest extends AbstractImmutableSetTest {

  @J2ktIncompatible
  @GwtIncompatible // suite

import junit.framework.TestSuite;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Unit test for {@link ImmutableSet}.
 *
 * @author Kevin Bourrillion
 * @author Jared Levy
 * @author Nick Kralevich
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class ImmutableSetTest extends AbstractImmutableSetTest {

  @J2ktIncompatible
  @GwtIncompatible // suite

import com.google.common.testing.EqualsTester;
import com.google.common.testing.ForwardingWrapperTester;
import junit.framework.TestCase;

/**
 * Tests {@link ForwardingTable}.
 *
 * @author Gregory Kick
 */
public class ForwardingTableTest extends TestCase {

  @SuppressWarnings("rawtypes")
  public void testForwarding() {
    new ForwardingWrapperTester()
        .testForwarding(
            Table.class,

 */

package com.google.common.collect;

import com.google.common.annotations.GwtCompatible;
import junit.framework.TestCase;

/**
 * Tests {@link ImmutableTable}
 *
 * @author Gregory Kick
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class AbstractImmutableTableTest extends TestCase {

  abstract Iterable<ImmutableTable<Character, Integer, String>> getTestInstances();

import com.google.common.collect.testing.SampleElements.Ints;
import java.util.List;
import java.util.Set;

/**
 * Create integer sets for collection tests.
 *
 * @author Gregory Kick
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class TestIntegerSetGenerator implements TestSetGenerator<Integer> {
  @Override
  public SampleElements<Integer> samples() {
    return new Ints();

import com.google.common.annotations.GwtIncompatible;
import com.google.common.base.Objects;
import com.google.common.testing.EqualsTester;

/**
 * Tests {@link SingletonImmutableTable}.
 *
 * @author Gregory Kick
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class SingletonImmutableTableTest extends AbstractImmutableTableTest {
  private final ImmutableTable<Character, Integer, String> testTable =

    public WithPublicConstructorAndConstant() {}
  }

  private static class WithPublicConstants {
    public static final WithPublicConstants FIRST = new WithPublicConstants();

    // To test that we pick the first constant alphabetically
    @SuppressWarnings("unused")
    public static final WithPublicConstants SECOND = new WithPublicConstants();
  }

  private static class FirstConstantIsNull {

import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Unit test for {@link NullPointerTester}.
 *
 * @author Kevin Bourrillion
 * @author Mick Killianey
 */
@SuppressWarnings("CheckReturnValue")
public class NullPointerTesterTest extends TestCase {

  /** Non-NPE RuntimeException. */
  public static class FooException extends RuntimeException {

 *
 * <pre>{@code
 * return Converter.from(
 *     Integer::toHexString,
 *     s -> parseUnsignedInt(s, 16));
 * }</pre>
 *
 * @author Mike Ward
 * @author Kurt Alfred Kluever
 * @author Gregory Kick
 * @since 16.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
/*
 * 1. The type parameter is <T> rather than <T extends @Nullable> so that we can use T in the