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

/**
 * Create multisets of strings for tests.
 *
 * @author Jared Levy
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class TestStringMultisetGenerator implements TestMultisetGenerator<String> {
  @Override
  public SampleElements<String> samples() {

package com.google.common.collect;

import com.google.common.annotations.GwtCompatible;
import java.util.Collection;

/**
 * Implementation of {@link ImmutableListMultimap} with no entries.
 *
 * @author Jared Levy
 */
@GwtCompatible(serializable = true)
@ElementTypesAreNonnullByDefault
class EmptyImmutableListMultimap extends ImmutableListMultimap<Object, Object> {

import java.util.Collections;
import java.util.List;
import java.util.SortedSet;

/**
 * Create string sets for testing collections that are sorted by natural ordering.
 *
 * @author Jared Levy
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class TestStringSortedSetGenerator extends TestStringSetGenerator
    implements TestSortedSetGenerator<String> {

  @Override

import java.util.Collections;
import java.util.List;

/**
 * An abstract {@code TestMultisetGenerator} for generating multisets containing enum values.
 *
 * @author Jared Levy
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class TestEnumMultisetGenerator implements TestMultisetGenerator<AnEnum> {
  @Override
  public SampleElements<AnEnum> samples() {

import com.google.common.base.Predicate;
import java.util.Collection;
import java.util.Map;
import java.util.Map.Entry;

/**
 * Tests for Multimaps.filterEntries().asMap().
 *
 * @author Jared Levy
 */
@GwtIncompatible(value = "untested")
public class MultimapsFilterEntriesAsMapTest extends AbstractMultimapAsMapImplementsMapTest {
  private static final Predicate<Entry<String, Integer>> PREDICATE =

import java.util.Collection;
import java.util.Map;

/**
 * Test {@link Multimap#asMap()} for an {@link ImmutableMultimap} with {@link MapInterfaceTest}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class ImmutableMultimapAsMapImplementsMapTest
    extends AbstractMultimapAsMapImplementsMapTest {

  public ImmutableMultimapAsMapImplementsMapTest() {

import com.google.common.testing.SerializableTester;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Test cases for {@link HashBasedTable}.
 *
 * @author Jared Levy
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class HashBasedTableTest extends AbstractTableTest<Character> {

  @Override

 * {@link #asMap} has {@code List} values.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/NewCollectionTypesExplained#multimap">{@code Multimap}</a>.
 *
 * @author Jared Levy
 * @since 2.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public interface ListMultimap<K extends @Nullable Object, V extends @Nullable Object>
    extends Multimap<K, V> {
  /**
   * {@inheritDoc}
   *

import com.google.common.annotations.GwtCompatible;
import java.util.Iterator;
import java.util.NoSuchElementException;
import junit.framework.TestCase;

/**
 * Tests for {@link UnmodifiableIterator}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableIteratorTest extends TestCase {

  @SuppressWarnings("DoNotCall")
  public void testRemove() {

import com.google.common.annotations.GwtCompatible;
import java.util.Iterator;
import java.util.NoSuchElementException;
import junit.framework.TestCase;

/**
 * Tests for {@link UnmodifiableIterator}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableIteratorTest extends TestCase {

  @SuppressWarnings("DoNotCall")
  public void testRemove() {