* limitations under the License.
 */

/**
 * Collection interfaces and implementations, and other utilities for collections. This package is a
 * part of the open-source <a href="https://github.com/google/guava">Guava</a> library.
 *
 * <p>The classes in this package include:
 *
 * <h2>Immutable collections</h2>
 *
 * These are collections whose contents will never change. They also offer a few additional

 */

package com.google.common.testing;

import com.google.common.annotations.GwtCompatible;
import com.google.errorprone.annotations.concurrent.GuardedBy;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.logging.Handler;
import java.util.logging.LogRecord;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**

        assertEquals("\\\\", getQuery("\\", new String[0], Collections.emptyMap(), Collections.emptyMap(), true));
        assertEquals("\\\\\\\\", getQuery("\\\\", new String[0], Collections.emptyMap(), Collections.emptyMap(), true));
        assertEquals("aaa \\&\\& bbb", getQuery("aaa && bbb", new String[0], Collections.emptyMap(), Collections.emptyMap(), true));

        @Override
        public void addIntHeader(String name, int value) {
        }

        @Override
        public java.util.Collection<String> getHeaders(String name) {
            return java.util.Collections.emptyList();
        }

        @Override
        public java.util.Collection<String> getHeaderNames() {
            return headers.keySet();
        }

        @Override

  public void testPutAllEmptyCollectionOnAbsentKey() {
    assertFalse(multimap().putAll(k3(), Collections.<V>emptyList()));
    expectUnchanged();
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testPutAllEmptyIterableOnAbsentKey() {
    assertFalse(multimap().putAll(k3(), Collections::emptyIterator));
    expectUnchanged();
  }

      return satisfies(key, value);
    }
  }

  static <E extends @Nullable Object> Collection<E> filterCollection(
      Collection<E> collection, Predicate<? super E> predicate) {
    if (collection instanceof Set) {
      return Sets.filter((Set<E>) collection, predicate);
    } else {
      return Collections2.filter(collection, predicate);
    }
  }

  @Override
  public boolean containsKey(@Nullable Object key) {

import static java.util.Collections.emptyList;
import static java.util.Collections.singletonList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.Multimap;
import com.google.common.collect.testing.features.CollectionSize;
import com.google.common.collect.testing.features.MapFeature;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.junit.Ignore;

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkArgument;
import static java.util.Collections.sort;

import com.google.caliper.BeforeExperiment;
import com.google.caliper.Benchmark;
import com.google.caliper.Param;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Random;
import java.util.Set;

 *
 * <ul>
 *   <li><b>Shallow immutability.</b> Elements can never be added, removed or replaced in this
 *       collection. This is a stronger guarantee than that of {@link
 *       Collections#unmodifiableCollection}, whose contents change whenever the wrapped collection
 *       is modified.
 *   <li><b>Null-hostility.</b> This collection will never contain a null element.

    public Map<C, V> row(@ParametricNullness R rowKey) {
      return Collections.unmodifiableMap(super.row(rowKey));
    }

    @Override
    public Set<R> rowKeySet() {
      return Collections.unmodifiableSet(super.rowKeySet());
    }

    @Override
    public Map<R, Map<C, V>> rowMap() {
      return unmodifiableMap(Maps.transformValues(super.rowMap(), Collections::unmodifiableMap));
    }

    @Override